-------
3.5
¦g
Q.
T
E
Q.
Q.
§2.5
TJ
a>
*->
o
TJ
-------
4
¦g
Q.
T
E
Q.
Q.
O)
O
"D
0
-~—*
O
t)
0
3.5
2.5
2.5
3.5
Observed (log ppm-lipid)
Figure 4-6 Observed versus Predicted Concentrations of 2Tri+ PCBs for Largemouth Bass
from Bivariate BAF Model
Hudson River Database Release 4.1
MCA/TetraTech
-------
3.2
~o
cl
2.8
E
Q.
Q.
§2.4
¦a
a>
+-•
o
T3
Q)
1.6
1.6
2.4
Observed (log ppm-lipid)
2.8
3.2
Figure 4-7 Observed versus Predicted Concentrations of 2Tri+ PCBs for Pumpkinseed
from Bivariate BAF Model
Hudson River Database Release 4.1	MCA/TetraTech
-------
1400
1200
6)1000
800
600
400
200
0
•—V ^ •
0	100
Arithmetic — Log-Log
—l—
200	300	400
Water Column Concenration (ng/l)
Observed
500
600
Figure 4-8 Comparison of Arithmetic and Log-Log Bivariate BAF Models
for £Tri+ PCBs in Pumpkinseed
Hudson River Database Release 4.1
MCA/TetraTech
-------
Group 2: River Miles 168-176
2500
-x— Arithmetic —i— Log-Log • Observed
2000 --
p"
a.
i
o>
H1500
E
c
o
~ 1000
Q)
O
c
o
O
500 4-
-X
1975
1980
1985	1990
Year
1995
2000
800
Group 4: River Miles 142-152
—x— Arithmetic
Log-Log
Observed
•g 600
'g.
O)
E
I400
"5
c
0)
o
c
o
° 200
\
—X	^
1975
1980
1985
1990
1995
Year
2000
Figure 4-9 Comparison of Bivariate BAF Model Predictions and Observations
of Mean Summer Body Burden of ETri+ PCBs in Brown Bullhead
Hudson River Database Release 4.1
MCA/TetraTech
-------
Group 2: River Miles 168-176
1400
1200
—x- Arithmetic —i— Log-Log
Observed
J1000
i
05
J 800
c
o
| 600 —
"c
a>
o
J 400
200
--
1975
1980
1985	1990
Year
1995
2000
Group 4: River Miles 142-152
700
600 ---
-x— Arithmetic —i— Log-Log
Observed
J. 500
>
O)
g400
c
o
2 300 —
»
c
0)
o
§ 200
100 —

1975
1980
1985
1990
Year
1995
2000
Figure 4-10 Comparison of Bivariate BAF Model Predictions and Observations
of Mean Summer Body Burden of ETri+ PCBs in Pumpkinseed
Hudson River Database Release 4.1
MCA/TetraTech
-------
Group 2: River Miles 168-176
6000
5000
2
Q.
"5,4000
OJ
| 3000
-------
FIGURE 5-1 TOC-Normalized PCB Concentration in the Hudson
River Based on Phase 2 1993 Data
TOC-Normalized PCB Concentrations in the Upper River
u
0£j
m
u
cu
SO
3
e
CJ
C2
Li
1500
1000
500
-500



1
I
1
Lxlx'
1
HH
H
M
i
120
100
80
CQ

60
c 40
U.

0
a °
aa
U -20
-40
159 169.5 188.5 188.7 189 189.5 191.5 194.1 196.9 20?.?
River Mile
TOC-Normalized PCB Concentrations in the Lower River
IX
I
I
¦ ~ ¦'	¦ ¦¦	¦¦¦	>¦ — ¦ ¦	w	W		¦
445544^45
25.8 47.3 58.7 88.9 100 I 13.8 122.4 137.2 143.5
River Mile
Hudson River Database Release 4.1
MCA/TetraTech
-------
FIGURE 5-2 BSAF Results
BSAF by Species Across All River Miles
IT,
~ 2
<
CO
0 .
[ I
It
JII
6	•»	?	5	?	s	:o	:s
AM BV CH GA IS OD OL ST UT
Species
BSAF by River Mile Across All Species
l/~j
% '
C/3
cc
0
IjI
11
I
N=	4	4	-I	.5	| J
25.8 47.3 88 9 100 122.4 188.5 188.
189 189.5 191.5
River Mile
Hudson River Database Release 4.1
MCA/TetraTech
-------
FIGURE 5-3 Cumulative Distribution Function for BSAF
0.1
0.7 1.2 1.8 2.4 2.9
BSAF (unitless)
3.5
4.0
4.6
More
Hudson River Database Release 4.1
MCA/TelraTech
-------
FIGURE 5-4 Water Column to Water Column Invertebrate BAF
Results
Total Water: Water Column Invertebrate BAF
Using NYS DOH Data
8 '
7 «
<
33 A
o 6
o
5 ¦
4 .
3
N =	;*	r	:•»	it	:i	2i	f<	:	M
153.3 158.1 169.0 181.8 189.4 193.3 193.5 193.9 193.9
River Mile
Cumulative Distribution for BAF
9095-
- 80<7c
30 --
1/i
10 ¦¦
3.3 3.6 3.9 4.2 4.5 4.7 5.0 5.3 5.6 5.9 6.2 6.5 6.8 7.1 More
Bin
Hudson River Database Release 4.1
MCA/TetraTech
-------
FIGURE 5-5 Forage Fish Concentrations and FFBAF Results
Lipid-Normalized PCB Concentration
2500
H 2000
ir,
^ 1500
.*"2
¦J 1000
CJj
32
a? 500
=x>
0
in Fish < 10 cm in 1993
si

¦I1
N = .»	t> ft > > o / v	5 u; > it io i •>
25.8 58.7 100.0 122.4 143.5 169.5 191.5 196.9
47.3 88.9 113.8 137.2 159.0 189.5 194.1 203.3
River Mile
Cumulative Distribution for FFBAF
0.6
100%
- 609<
-- 40%
-- 20%
.7 2.2 2.8 3.3
FFBAF
3.9 More
Hudson River Database Release 4.1
MCA/TetraTeeh
-------
Figure 5-6 Summary of Largemouth Bass to Pumpkinseed Ratios
Ratio of Lipid-Normalized Individual Largemouth Bass
to Average Lipid-Normalized Pumpkinseed
a
OS
4 ,
*54
*64
oso n&
¦
N'= 19 17 21 21 20 20 19	20	20
168 - 168 - 168 - 168 - 168 - 168 - 168 -	168 -	189-
1982 1983 1985 1986 1988 1990 1994	1995	1990
River Mile and Year
Cumulative Frequency of Largemouth Bass Ratios
> 0.60

oo
so-";
7tV7
Mi'-;
MKr
40'';
}0rf
20'?
I0f-;
or;
Hudson River Database release 4.1
MC.-VTetraTech
-------
FIGURE 5-7 Hindcasting Concentrations from Fate and Transport
Modeling for Water and Sediment
Hindcasting Whole Water
Summer PCB Concentrations
—0— 168 Total Water Cone
0.0012
189 Total Water Cone
157 Total Water Cone
o.ooi ¦
154 Total Water Cone
m 0.0008 -
0.0006 -
0.0004 -
0.0002 -
1976 1978 1980 1982 1984 1986 1988 1990 1992 1994 1996 I99S
Year
Hindcasting Results for TOC-Normalized Sediment Concentrations
6000 i—
S 5000 ^
^ 4000 -
5 3000 -
?• 2000 "
E 1000 -
o —
1975
-o— 189 E[x]
-D- 168 E[x]
-a— 157 E[x)
154 E[x]
1980
1985
1990
1995
Year
2000
Hudson River Database Release 4 1
MCA/TeiraTech
-------
Figure 5-8 Probabilistic Empirical Model Calibration Results
Using Output from Fate and Transport Model
(for Pumpkinseed)
Pumpkinseed Lipid-Normalized Concentrations
for River Mile 189
1800 -
1600 -
1200 -
u> 1000
800 -
600 -
200 -
Data
¦	50%
•Mean
-75%
¦	90%
1986
1988
1990
1992
Year
1994
1996
1998
1400
1200
1000
'a
13 800
m
£ 600
oi
^ 400 -
200 -
Pumpkinseed Lipid-Normalized Concentrations
for River Mile 168
o
1979 1981 1983 1985 1987 1989 1991 1993 1995 1997
Year
~ Data
-a- 50%
-A—Mean
-*-90%
-3K 75%
Hudson River Database Release 4.1
MCA/TetraTech
-------
Figure 5-9 Probabilistic Empirical Model Calibration Results
Using Output from Fate and Transport Model
(for Largemouth Bass)
Lipid Normalized Largemouth Bass Concentrations
for River Mile 189
10000
~—50%
Mean
1984 1986 1988 1990 1992 1994 1996 1998
8000
7000
2 6000
~ 5000
4000
" 3000
O)
=l 2000
1000
0
1
~
Lipid Normalized Largemouth Bass Concentrations
for River Mile 168	# Data
	 O ¦ 50%
-a- 75%
+	x Mean
90%

976 1978 1980 1982 1984 1986 1988 1990 1992 1994 1996
Year
Hudson River Database Release 4.1
MCA/TetraTech
-------
Figure 5-10 Probabilistic Emipirical Model Calibration Results
on a Wet Weight Basis Using Output from Fate and Transport Model
(for Largemouth Bass)
Largemouth Bass Wet Weight Concentrations
for River Mile 189
Mean
120 -
100 -
1982
1984 1986
1988
1990 1992 1994 1996
1998
s:
cn
'53
-------
m
o
a.
O)
o>
n
120
100
80
60
40
20
0
1
Figure 6-1 Hindcasting Concentrations From Fate And
Transport Modeling For Water And Sediment
Hindcasting Results for Dry Weight Annual Sediment Concentrations from Fate and
Transport Model	—
975
189 E[x]


168 E[x]

—A—
157 E[x] ;


154 Ejx]

B 1 11 1 1 1 ¦ ¦ i ¦

1980
1985
1990
1995
2000
Year
Hindcasting Results for Truly Dissolved Monthly Mean Water Concentration from
Fate and Transport Model for River Mile 189
1000
Bi
800 -
600 -
400 •
50
100	150	200
Month (1=January, 1998)
250
300
Hindcasting Results for Truly Dissolved Monthly Mean Water Concentration from
Fate and Transport Model for River Mile 168
o 200
CO
<2 100
50
100	150	200
Month (1=January, 1998)
250
300
Hudson River Database Release 4.1
MCA/TetraTech
-------
Figure 6-1 Hindcasting Concentrations From Fate And
Transport Modeling For Water And Sediment (cont.)
Hindcasting Results for Truly Dissolved Monthly Mean Water Concentration from
Fate and Transport Model for River Mile 157
600
500 -
300 -
100 -
50
100
150
200
250
Hindcasting Results for Truly Dissolved Monthly Mean Water Concentration from
Fate and Transport Model for River Mile 154
Hudson River Database Release 4.1
MCA/TetraTech
-------
Figure 6-2 Lpid Distributions for FISHRAND
Largemouth Bass Lipid Distribution
80
60
S 40
O-
0)
it 20
100 /o
n fl II n n II«. n n fl n-.n ni n, w
0
O tx - Qy	N' %' "V 'b- *b"
% lipid
Brown Bullhead Lipid Distribution
100%
Pumpkinseed Lipid Distribution
(00%
ninlni»lnl i->
C? tx5 *0*	^ ^	9?*
O- \ \ \- <1- ny 0-* 

<>
10
c
-------
Figure 6-2 Lpid Distributions for FISHRAND (cont.)
Yellow Perch Lipid Distribution
from NYS DEC

30
>.
25
o
c
20
V
3
15
O"
CD
10
III
5

0
100%
NrbNrbNrb 30
<= 25
5 20
il 10
Zo lipid
Yellow Perch Lipid Distribution from EPA
Phase II
> 15
o
§ 10
cr
0)
5
0
\
1
\
S>
&
, M. n
&
100%
80%
60%
40%
20%
0%
U-
Q
O
b.- 
-------
Figure 6-3 Weight Distributions for FISHRAND
Largemouth Bass Weight Distribution
150
g 100
3
S" 50
IL
o

UULiUi

100%
80%
60%
40%
20%
0%
ooooooooooooo
ooooooooooooo
r-nmNffli-nwNfflr-nw
*1— T— T— T— T— OJCNJOJ
Weight (g)
Brown Bullhead Weight Distribution
> 50
c 40
3 30

^ .cP .cP .o^ _^„c^
^ ^ ^  150
o
c
 c&
o,~> o£> o°> ^
Hudson River Database Release 4.1
MCA/TetraTech
-------
Figure 6-3 Weight Distributions for FISHRAND (cont.)
Spottail Shiner Weight Distribution

25
>
o
20
c
0)
15
3
10
cr
0)

u.
LL
b

0

-------
Figure 6-4 Calibration Results For Fishrand Using Fate and Transport Model Output as Input
Largemouth Bass Lipid Normalized Concentrations
at River Mile 189: Calibration Period
10000
9000
8000
g 7000
a- 6000
o> 4000
^ 3000
1982 1984 1986 1988 1990 1992 1994 1996 1998
Year
Pumpkinseed Lipid Normalized Concentrations
for River Mile 189: Calibration Period
o
1500
o
o
O, 1000
"9>
* 500
1987	1989	1991	1993
Year
1995
1997
Largemouth Bass Wet Weight Concentrations
at River Mile 189: Calibration Period
o- 45
1998
Pumpkinseed Wet Weight Concentrations
for River Mile 189: Calibration Period
m
o 40
a.
at 30
"&>
=>• 20
1997
Hudson River Database Release 4.1
MCA/TetraTech
-------
Figure 6-4 Calibration Results For Fishrand Using Fate and Transport Model Output as Input (Cont.)
Largemouth Bass Lipid Normalized Concentrations at River Mile
168: Calibration Period

12000
m
10000
o

a
8000
o
O
6000
o>
4000
a)
=L
2000
1979 1981 1983 1985 1987 1989 1991
Year
1993 1995 1997
Largemouth Bass Wet Weight Concentrations
at River Mile 168: Calibration Period
a> 30
rtt
1979 1981 1983 1985 1987 1989 1991 1993 1995 1997
Year
Pumpkinseed Lipid Normalized Concentrations
for River Mile 168
m	5000
	4000
O	3000
°	2000
U)
1991 1993 1995 IS
Year
1985 1987 1989
Hudson River Database Release 4.1
Pumpkinseed Wet Weight Concentrations
for River Mile 168
m
1979 1981 1983 1985 1987 1989 1991 1993 1995 1997
Year
MCA/TetraTech
-------
Figure 6-4 Calibration Results For Fishrand Using Fate and Transport Model Output as Input (Cont.)
Yellow Perch Lipid Normalized Concentrations
at River Mile 189: Calibration Period
2 2000
1976 1978 1980 1982 1984 1986 1988 1990 1992 1994 1996
Year
Brown Bullhead Lipid Normalized Concentrations
for River Mile 189: Calibration Period
12000
10000
4000
1978 1980 1982 1984 1986 1988 1990 1992 1994 1996
Year
Hudson River Database Release 4.1
Yellow Perch Wet Weight Concentrations
at River Mile 189: Calibration Period
200 -
150
m
o
a.
o>
100
1976 1978 1980 1982 1984 1986 1988 1990 1992 1994 1996
Year
Brown Bullhead Wet Weight Concentrations
for River Mile 189: Calibration Period
100
	
80

~
o

O 60 ¦

a

o>

40
~
a.
~
20
!
0
1
1978 1980 1982 1984 1986 1988 1990 1992 1994 1996
Year
MCA/TetraTech
-------
Figure 6-4 Calibration Results For Fishrand Using Fate and Transport Model Output as Input (Cont.)
Yellow Perch Lipid Normalized Concentrations
at River Mile 168
1976 1978 1980 1982 1984 1986 1988 1990 1992 1994 1996
Year
Yellow Perch Wet Weight Concentrations
at River Mile 168
1976 1978 1980 1982 1984 1986 1988 1990 1992 1994 1996
Year
Brown Bullhead Lipid Normalized Concentrations
for River Mile 168
6000 ¦—i
Uj 5000
cl 4000
2000
* 1000
1978 1980 1982 1984 1986 1988 1990 1992 1994 1996
Year
m
O
a.
at
~d>
=L
Brown Bullhead Wet Weight Concentrations
for River Mile 168
100 -
1978 1980 1982 1984
1986 1988
Year
1990 1992 1994 1996
Hudson River Database Release 4.1
MCA/TetraTech
-------
Figure 6-4 Calibration Results For Fishrand Using Fate and Transport Model Output as Input (Cont.)
Largemouth Bass Lipid Normalized Concentrations
at River Mile 157 Calibration Period

10000
m
8000
o

a
6000
o

o

o>
4000
"3>

a.
2000
1982 1984 1986 1988 1990 1992 1994 1996 1998
Year
Largemouth Bass Wet Weight Concentrations
at River Mile 157: Calibration Period
1998
White Perch Lipid Normalized Concentrations
for River Mile 157: Calibration Period
1987	1989	1991	1993
Year
Hudson River Database Release 4.1
1995
1997
White Perch Wet Weight Concentrations
for River Mile 157: Calibration Period
1997
MCAfT etraTech
-------
Figure 6-4 Calibration Results For Fishrand Using Fate and Transport Model Output as Input (Cont.)
Largemouth Bass Lipid Normalized Concentrations at
River Mile 152-154 Calibration Period
m 3000
o
£ 2000
O
!!
1000
1998
White Perch Lipid Normalized Concentrations
tor River Mile 152-154: Calibration Period
a 600
o 400
H 200
1991	1993	1995
Year
1997
Largemouth Bass Wet Weight Concentrations
at River Mile 152-154: Calibration Period
m
o 20
o.
1982 1984 1986 1988 1990 1992 1994 1996 1998
Year
White Perch Wet Weight Concentrations
for River Mile 152-154: Calibration Period
1987	1989	1991	1993
Year
1995
1997
Hudson River Database Release 4.1
MCA/TetraTech
-------
Figure 6-4 Calibration Results For Fishrand Using
Fate and Transport Model Output as Input (Cont.)
Yellow Perch Lipid Normalized Concentrations
at River Mile 152-154 Calibration Period
1200
g 1000
°- 800
o
O 600
§ 400
1982
1998
Yellow Perch Wet Weight Concentrations
at River Mile 152-154: Calibration Period
m 20
5. 10
1998
Brown Bullhead Lipid Normalized Concentrations
at River Mile 152-154 Calibration Period
2000
m
£ 1500
y 1000
500
1998
1996
1992
1994
1990
1988
1986
1982
1984
Year
Hudson River Database Release 4.1
Brown Bullhead Wet Weight Concentrations
at River Mile 152-154 Calibration Period
1982
1984
1986
1990 1992
1994
1998
1988
1996
Year
MCA/TetraTech
-------
Figure 6-5 Seasonal Differences in Yellow And White Perch

10

8
CD

O
6
CL

o>

"9)
4
:±


2

0

10

8
CO

o
b
Q.

o>

Bi
4
It


2

0
Yellow Perch Monthly Wet Weight Concentrations
Predicted by FISHRAND at River Mile 154
~ ~ ~ ~ 4 ~
• I"
~ FISHRAND
¦ NOAA Fall
~ NOAA Spring
4	6	8
Month During 1995
10
12
White Perch Monthly Wet Weight Concentrations
Predicted by FISHRAND at River Mile 154
A
I
~ ~
~ FISHRAND
¦ NOAA Fall
A NOAA Spring
4	6	8
Month During 1995
10
¦H
12
O
o
o>
m
o
a
o>
=t
o
o
o>
CD
O
a.
o>
a
400
300
200
100
0
Yellow Perch Monthly Lipid Normalized
Concentrations Predicted by FISHRAND at River
Mile 154
~ FISHRAND
¦ NOAA Fall
A NOAA Spring
A
i
~ ~ ~ ~ 4 ~
I
4	6	8
Month During 1995
10
12
350
300
250
200
150
100
50
0
White Perch Monthly Lipid Normalized
Concentrations Predicted by FISHRAND at River
Mile 154		 -
	~ FISHRAND
A	¦ NOAA Fall
4	A NOAA Spring
~ ~ ~
t ~
I
~ ~
4	6	8
Month During 1995
10
12
Hudson River Database Release 4.1
MCA/TetraTech
-------
Figure 7.1 Predicted Concentrations from Fate and Transport Model
under Zero Upstream Boundary Conditions
Predicted Whole Water Summer PCB Concentrations under Zero
Upstream Boundary Condition
189 Total Water Cone
168 Total Water Cone
157 Total Water Cone
154 Total Water Coric
0,00004
0.000035
0.00003
0.000025
| 0.00002
0.000015
0.00001
0.000005
1998
2002
2006
2010
2014
2018
Year
Predicted TOC-Normalized Sediment Concentrations for Zero
Boundary Condition from Fate and Transport Model
900
o. 800 -I
§¦ 700
x 600
pi 500
8 400
- 300
m
g 200
£ 100
0
1995
2000
2005
2010
2015
189 Efx]
168 Efx]
57 E[x]
54 E[x]
2020
Year
Hudson River Database Release 4.1
MCA/T etraTech
-------
Figure 7.2 Predicted Concentrations from Fate and Transport Model
under Constant Upstream Boundary Conditions
Predicted Whole Water Summer PCB Concentrations under
Constant Upstream Boundary Condition
"9>
£ 0.000025
« 0.00002
o 0.000015
¦C
£
0.00001
0.000005
189 Total Water Cone
168 Total Water Cone
157 Total Water Cone
154 Total Water Cone
0.00004
0.000035
0.00003
1998
2002
2006
2010
2014
2018
Year
Predicted TOC-Normalized Sediment Concentrations for Constant
Boundary Condition from Fate and Transport Model
>
O
CO.
Q-
S
X
>
ss.
CL
o
?-
?-
1200
1000
800
600
400
200
189 E[x]
168 E[x]
157 E[x]
54 E[x]
A ft—ft A=a
1995
2000
2005	2010
Year
2015
2020
Hudson River Database Release 4.1
MCA/TetraTech
-------
o>
E
CD
Si
-J
,N Q)
(0 ^
E m
I"
"O
Q.
CO
Figure 7-3 Predicted Lipid Normalized Concentrations under Zero Upstream Boundary
Conditions from Empirical Probabilistic Model
Predicted Largemouth Bass Concentrations for Zero Upstream
Boundary at River Mile 189
1,600.00
1,400.00
1,200.00
1,000.00
800.00
600.00
400.00
200.00
0.00
Mean
1995
2000
2005
2010
2015
2020
Year
Predicted Largemouth Bass Concentrations for Zero Upstream
Boundary at River Mile 157
|> 600.00
500.00
„ "5. 400.00
12 -j
300.00

73 ^
E CO
I"
T3
5.
000.00
600.00
400.00
200.00
0.00
1995
2000
2005	2010
Year
2015
2020
Predicted Largemouth Bass Concentrations for Zero Upstream
Boundary at River Mile 154
o>
E

500.00
CD
f •)

400.00
CL
y

S

300.00
N
O)

1
m
200.00

a

z
U-
100.00
"O


a
_i

0.00
Mean
1995	2000	2005	2010
Year
2015
2020
Hudson River Database Release 4.1
MCA/TetraTech
-------
Figure 7-4 Predicted Wet Weight Concentrations Under Zero Upstream Boundary
Condition from Emprical Probabilistic Model
Predicted Largemouth Bass Wet Weight PCB Concentrations
for Zero Upstream Boundary
at River Mile 189
1995
2000
2005 2010
Year
2015
2020
1
m
o
!
i
Predicted Largemouth Bass Wet Weight PCB Concentrations for
Zero Upstream Boundary
at River Mile 16B
1995
2000
2010
20»5
Year
-50%
-O—'Mean
—A— 75%
-*-90%
-~-95%
Predicted Largemouth Bass Wet Weight PCB Concentrations for
Zero Upstream Boundary
at River Mile 1S7
Mean
2000
?Q05
Year
Predicted Largemouth Bass Wet Weight PCB Concentrations for
Zero Upstream Boundary
at River Mile 154
7 	¦——	¦	¦			1—0—50%
2000
2005
2010
2015
Year
Hudson River Database Release 4.1
MCA/TetraTech
-------
43.3%
17.8%
FFBAF
BSAF
WaterBAF
PiscFBAF
Hudson River Database Release 4.1
MCA/TetraTec
Figure 7-5
Average Contribution to Variance under Zero Upstream Boundary
Condition for Empirical Probabilistic Model
-------
CD
3
m
o ~
Q. 2
"o a
8 -J
:= o>
(0 ^
§ rn
o o
z *
*
2
a
Figure 7-6 Predicted Lipid Normalized Concentrations under Constant Upstream Boundary
Condition from Empirical Probabilistic Model
Predicted Lipid-Normallzed Largemouth Bass PCB Concentrations
for Constant Boundary Condition at River Mile 189
1,600
1,400
1,200
1,000
800
600
400
200
0
1995
2000
2005
2010
2015
2020
Year
Predicted Lipld-Normalized Largemouth Bass PCB Concentrations
for Constant Boundary Condition at River Mile 168
1,000
2005	2010
Year
Predicted Llpid-Normalized Largemouth Bass PCB Concentrations
for Constant Boundary Condition
at River Mile 157
600
m
£ 9500
u a
<5 3100
•— CT1
c ^300
E CD
| cl200
•6 °>
|-300
0	
1995
Mean
2000
2005
2010
2015
2020
Year
Predicted Lipld-Normalized Largemouth Bass PCB Concentrations
for Constant Boundary Condition
at River Mile 154
-50%
¦Mean
-75%
-90%
-•—95%
1995
2000
2005
2010
2015
2020
Year
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Figure 7-7 Predicted Wet Weight Concentrations under Constant Upstream Boundary
Condition from Empirical Probabilistic Model
Predicted Largemouth Bass Wet Weight PCB Concentrations for
Constant Upstream Boundary
at River Mile 189
5 25
1995	2000	2005	2010
Year
2015
2020
Predicted Largemouth Bass Wet Weight PCB Concentrations for
Constant Upstream Boundary at River Mile 157
Mean
1995
2000
2005
2010
2015
2020
Year
Predicted Largemouth Bass Wet Weight PCB Concentrations for
Constant Upstream Boundary at River Mile 168
1995	2000	2005	2010
Year
2015
2020
Predicted Largemouth Bass Wet Weight PCB Concentrations Under
Constant Upstream Boundary at River Mile 154
1995
2000
2005
2010
2015
2020
Year
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37.6%
18.4%
FFBAF
BSAF
WaterBAF
PiscFBAF
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Figure 7-8
Average Contribution to Variance under Constant Upstream Boundary
Condition for Empirical Probabilistic Model
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Figure 7-9 Predicted Dissolved Water and Dry Weight Sediment
Concentrations under Zero Boundary Condition
1995
Predicted Dry Weight Annual Mean Sediment Concentrations for Constant Boundary
Condition from Fate and Transport Model
189 E[x]
168 E[x]
157 E[x]
154 E[x]
2000
2005
2010
2015
2020
Year
Predicted Monthly Mean Dissolved Water
PCB Concentrations for River Mile 189
100	150
Month (1=January, 1998)
250
Predicted Monthly Mean Dissolved Water
PCB Concentrations for River Mile 168
50
100
150
200
250
300
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Figure 7-9 Predicted Dissolved Water and Dry Weight Sediment
Concentrations under Zero Boundary Condition (cont.)
Predicted Monthly Mean Dissolved Water
PCB Concentrations for River Mile 157
40
30 -
20 -
< ~
0
50
100
150
300
200
250
Predicted Monthly Mean Dissolved Water
PCB Concentrations for River Mile 154
25
20 -
< ~
0
50
100
150
200
250
300
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Figure 7-10 Predicted Dissolved Water and Dry Weight Sediment
Concentrations under Constant Boundary Condition
1995
Predicted Dry Weight Annual Mean Sediment Concentrations for Constant Boundary
Condition from Fate and Transport Model
2000
2005
2010
2015
Year
Predicted Monthly Mean Dissolved Water
PCB Concentrations for River Mile 189
189 E[x]
168 E[x]
157 E[x]
154 E[x]
2020
O 15
100	150
Month (1=January, 1998)
250
Predicted Monthly Mean Dissolved Water
PCB Concentrations for River Mile 168
50
100
150
200
250
300
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Figure 7-10 Predicted Dissolved Water and Dry Weight Sediment
Concentrations under Constant Boundary Condition (cont.)
Predicted Monthly Mean Dissolved Water
PCB Concentrations for River Mile 157
50
100
150
200
250
300
Predicted Monthly Mean Dissolved Water
PCB Concentrations for River Mile 154
50
100
150
200
250
300
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Figure 7-11 Predicted Lipid Normalized Concentrations From FISHRAND For River Mile 189
Largemouth Bass Lipid Normalized Concentrations
at River Mile 189: Prediction Period
1000
1998 2000 2002 2004 2006 2008 2010 2012 2014 2016 2018
Year
Purnpkinseed Lipid Normalized Concentrations
for River Mile 189: Prediction Period
O 150
CT> 100
1998 2000 2002 2004 2006 2008 2010 2012 2014 2016 2018
Year
Yellow Perch Lipid Normalized Concentrations
at River Mile 189: Prediction Period
o 300
8 200
™ 150
A 100
1998 2000 2002 2004 2006 2008 2010 2012 2014 2016 2018
Year
Brown Bullhead Lipid Normalized Concentrations
for River Mile 189: Prediction Period
2000
o
0
01	1500
1998 2000 2002 2004 2006 2008 2010 2012 2014 2016 2018
Year
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Figure 7-12 Predicted Wet Weight Concentrations From FISHRAND For River Mile 189
Largemouth Bass Wet Weight Concentrations
at River Mile 189: Prediction Period
1998 2000 2002 2004 2006 2008 2010 2012 2014 2016 2018
Year
Pumpkinseed Wet Weight Concentrations
for River Mile 189: Prediction Period
1998 2000 2002 2004 2006 2008 2010 2012 2014 2016 201 £
Year
Yellow Perch Wet Weight Concentrations
at River Mile 189: Prediction Period
1998 2000 2002 2004 2006 2008 2010 2012 2014 2016 2018
Year
Brown Bullhead Wet Weight Concentrations
for River Mile 189: Prediction Period
1998 2000 2002 2004 2006 2008 2010 2012 2014 2016 2018
Year
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Figure 7-13 Predicted Lipid Normalized Concentrations From FISHRAND For River Mile 168
Largemouth Bass Lipid Normalized Concentrations
at River Mile 168: Prediction Period
1998 2000 2002 2004 2006 2008 2010 2012 2014 2016 2018
Year
Yellow Perch Lipid Normalized Concentrations
at River Mile 168: Prediction Period
1998 2000 2002 2004 2006 2008 2010 2012 2014 2016 2018
Year
Pumpkinseed Lipid Normalized Concentrations
for River Mile 168: Prediction Period
m 150
o
1998 2000 2002 2004 2006 2008 2010 2012 2014 2016 2018
Year
Brown Bullhead Lipid Normalized Concentrations
for River Mile 168: Prediction Period
1000
o
o
CTI
m
0
Q.
01
n
800
600
400
200
1998 2000 2002 2004 2006 2008 2010 2012 2014 2016 2018
Year
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Figure 7-14 Predicted Wet Weight Concentrations From FISHRAND River Mile 168
Largemouth Bass Wet Weight Concentrations
at River Mile 168: Prediction Period
1998 2000 2002 2004 2006 2008 2010 2012 2014 2016 2018
Year
Yellow Perch Wet Weight Concentrations
at River Mile 168: Prediction Period
1998 2000 2002 2004 2006 2008 2010 2012 2014 2016 2018
Year
Pumpkinseed Wet Weight Concentrations
for River Mile 168: Prediction Period
1998 2000 2002 2004 2006 2008 2010 2012 2014 2016 2018
Year
Brown Bullhead Wet Weight Concentrations
for River Mile 168: Prediction Period
1998 2000 2002 2004 2006 2008 2010 2012 2014 2016 2018
Year
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Figure 7-15 Predicted Lipid Normalized Concentrations From FISHRAND For River Mile 157
Largemouth Bass Lipid Normalized Concentrations
at River Mile 157: Prediction Period
1998 2000 2002 2004 2006 2008 2010 2012 2014 2016 201f
Year
Yellow Perch Lipid Normalized Concentrations
at River Mile 157: Prediction Period
1998 2000 2002 2004 2006 2008 2010 2012 2014 2016 2018
Year
White Perch Lipid Normalized PCB Concentrations for
River Mile 157: Prediction Period
a. 100
1998 2000 2002 2004 2006 2008 2010 2012 2014 2016 2018
Year
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Brown Bullhead Lipid Normalized Concentrations
for River Mile 157: Prediction Period
O 3 00
" 200
1998 2000 2002 2004
2006 2008 2010 2012
Year
2014 2016 2018
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Figure 7-16 Predicted Wet Weight Concentartions From FISHRAND For River Mile 157
Largemouth Bass Wet Weight Concentrations
at River Mile 157: Prediction Period
1998 2000 2002 2004 2006 2008 2010 2012 2014 2016 2018
Year
White Perch Predicted Wet Weight PCB Concentrations
for River Mile 157: Prediction Period
1998 2000 2002 2004 2006 2008 2010 2012 2014 2016 2018
Year
Yellow Perch Wet Weight Concentrations
at River Mile 157: Prediction Period
1998 2000 2002 2004 2006 2008 2010 2012 2014 2016 2018
Year
Brown Bullhead Wet Weight Concentrations
for River Mile 157: Prediction Period
1998 2000 2002 2004 2006
2008
Year
2010 2012 2014 2016 2018
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Figure 7-17 Predicted Lipid Normalized Concentrations From FISHRAND For River Mile 154
Largemouth Bass Lipid Normalized Concentrations
at River Mile 154: Prediction Period
CD 200
=1
1998 2000 2002 2004 2006 2008 2010 2012 2014 2016 2018
Year
Yellow Perch Lipid Normalized Concentrations
at River Mile 154: Prediction Period
250
w 150
9 100
1998 2000 2002 2004 2006 2008 2010 2012 2014 2016 2018
Year
White Perch Predicted Wet Weight PCB Concentrations
tor River Mile 157: Prediction Period
200
m 100
1998 2000 2002 2004 2006 2008 2010 2012 2014 2016 2018
Year
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Brown Bullhead Lipid Normalized Concentrations
tor River Mile 154: Prediction Period
O 300
o> 250
m 200
" 150
cn 100
^ 50
1998 2000 2002 2004 2006 2008 2010 2012 2014 2016 2018
Year
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Figure 7-18 Predicted Wet Weight Concentrations From FISHRAND For River Mile 154
Largemouth Bass Wet Weight Concentrations
at River Mile 154: Prediction Period
1998 2000 2002 2004 2006 2008 2010 2012 2014 2016 2018
Year
Yellow Perch Wet Weight Concentrations
at River Mile 154: Prediction Period
1998 2000 2002 2004 2006 2008 2010 2012 2014 2016 2018
Year
White Perch Predicted Wet Weight PCB Concentrations tor
River Mile 154: Prediction Period
1998 2000 2002 2004 2006 2008 2010 2012 2014 2016 2018
Year
dson River Database Release 4.1
! I
Brown Bullhead Wet Weight Concentrations
for River Mile 154: Prediction Period
1998 2000 2002 2004 2006 2008 2010 2012 2014 2016 2018
Year
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Appendix /v
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APPENDIX A
1. FISH PROFILES
1.1 Introduction
This section presents the life histories of the fish species selected for closer study in the
Hudson River. Profiles of the species focus on the foraging behavior, range and movement, and
reproduction of the fish species as they relate to PCB exposures in the Hudson River.
Species of interest include largemouth bass, white perch, yellow perch, brown bullhead,
pumpkinseed, spottail shiner, striped bass, and shortnose sturgeon. These species represent fish
that experience a wide variety of exposures, including pelagic and demersal feeders, stationary
and migratory species, and various trophic levels.
Information on the feeding ecology of Hudson River fish species is taken from the
literature and from several studies on the river. Important sources of information include: 1) the
Hudson River aquatic ecology studies performed by LMs Engineers in Haverstraw Bay (LMS,
1975a), above Newburgh (LMS, 1975b), and in the vicinity of Kingston (LMS, 1975c); 2)
observations on white perch feeding made as part of the TAMS/Gradient Phase II sampling
effort; 3) analyses of gut contents along with invertebrate investigations by Exponent (1998a,
1998b); and 4) analysis of several fish species collected by New York State Department of
Environmental Conservation in 1997 and 1998 and analyzed by Menzie-Cura & Associates..
Additional insight into feeding ecology for fish collected from the river were obtained from
Gladden et al. (1988) and Feldman (1992).
Information relied on for evaluating the ecology of the prey base included the literature,
observations in the river reported by Exponent (1998a, 1998b), observations made by Charles
Menzie on the ecology of zoolplankton, epibenthos, and infauna in the lower river invertebrates
during 1971 - 1975 while employed by LMS, and observations reported in Gladden et al. (1988),
Simpson and Bode (1980), and Feldman (1992).
1.1.1 Habitats in the Upper Hudson River
Several 1983 reports (MPI. 1984; Makarewicz, 1983; Makarewicz, 1987) provided
primary information concerning habitat types and relative abundance in the Upper Hudson River.
These reports provided the results of a fish survey conducted for New York State from the
Federal Dam past Thompson Island. The reports identified nine habitat types in the lock pools,
beginning with the Federal Dam. in the Hudson River:
Stream mouth habitats are adjacent to the outlets of small to large streams but within the
Hudson River itself. They have slow to strong currents, depending on seasonal flow. Bottom
types range from silt in slower zones to sand and gravel in faster zones. Aquatic macrophytes
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are generally absent. The shoreline has a mixture of tree cover, including willows, aspens, and
maples, with numerous areas of overhang. Depths range from 0.3 to 5 meters.
Main channel habitats are in the designated ship channel of the river. They have
moderate to strong currents depending on the specific lock pool. Aquatic macrophytes are
generally absent. The shoreline has a mixture of trees (willows, aspens, maples) with areas of
overhang. Depths range from 5 to 6 meters.
Shallows are areas adjacent to the main channel, without visible wetland vegetation.
Currents are mostly slow with some moderate to strong areas. Bottom types range from organic
sediment in slower zones to sand, gravel, and cobbles in the faster zones. Emergent and
submergent vegetation line most areas of the shoreline. The same mixture of trees with areas of
overhang plus significant growth of aquatic macrophytes provide excellent habitat areas for fish
species. Depths range from 0.3 to 2.1 meters.
Rapids contain a fast current with numerous zones of white water. The bottom is covered
with cobbles and gravel as a result of scouring action. Outcrops of bedrock are located adjacent
to steep embankment areas. Emergent and submerged vegetation areas are absent. Depths range
from 1.2 to 3.1 meters.
Embavments are coves along the shoreline. Cove water is mostly stagnant with areas of
slight current. The bottom contains mostly organic sediment with numerous patches of bottom
debris such as logs and submerged trees. Large areas of emergent and submerged vegetation
dominate. Substantial growth of water lilies, water chestnuts, and cattails choke selected areas,
particularly in late summer. Shoreline has a mixture of hardwoods, some partially submerged.
Observed schools of larval fish and adult spawning individuals demonstrate the importance of
the area as a sensitive fish habitat. Depths range from 0.2 to 2.4 meters.
Wetlands are shallow areas with emergent, floating, or submerged vegetation. Current is
slow with selected areas of stagnant water. The bottom consists of organic sediment and bottom
debris. Shoreline is partially flooded with numerous submerged willows and maples. Cattails
dominate emergent vegetation by forming extensive marsh areas. Like the embayment areas, the
wetlands represent a sensitive fish habitat. Water is shallow with a depth range of 0.3 to 1 meter.
Alternate channels are natural side channels are separated from the main channel by an
island. The current is variable ranging from imperceptible to fast. The bottom contains organic
material with a mixture of sand and gravel. The slower current areas are dominated by organic
sediment. Cattails dominate the emergent and submerged vegetation. Shorelines contain
willows and maples with areas of overhang. Depths range from 0.3 to 4.3 meters.
Artificial cuts are landcut portions of the river. Currents vary from slight to moderate.
The bottom is mostly organic sediment with bedrock outcrops along some portions of the
shoreline. A sparse growth of emergent vegetation exists. The shoreline has numerous areas of
riprap, sand, and cobbles. A mixture of hardwoods provides overhang in some areas. Depths
range from 0.2 meters in shore areas to 4.9 meters in midchannel.
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Wet dumpsites are areas designated on the NOAA charges or NYSDOT 10-year
management plan as wet dumping grounds. These areas are variable with respect to physical
features and flora. Currents tend to be moderate in summer and strong in spring. Bottom types
range from organic material and gravel to silt in slower moving zones. Macrophytes are absent
from most areas. Water is shallow, with depths ranging from 0.3 to 3 meters.
In general, the shallow and wetland areas provide ideal fish habitats with slower currents
and an abundance of floral cover.
1,1.2 Habitats in the Hudson River Estuary
In 1986. NYSDEC conducted a survey of fish and their habitats in the lower Hudson
River Estuary below Federal Dam. The study area consisted of three reaches encompassing 51
miles:
Upper reach: Troy to Coxsackie; River Miles 153-125
Middle reach: Coxsackie to German town; River Miles 124-107
Lower reach: Below Germantown; River Miles 106-102
This study showed the upper reach is narrow with very few tidal flats while the middle
reach is wide and shallow, containing major tributaries, islands, and numerous tidal flats. The
lower reach is characterized by moderate depth and many tidal flats. A greater proportion of
lentic backwaters and tributaries are present in the lower two reaches. Substrates through the
study area consist of fine and silty sand, with a few areas of bedrock, gravel, and boulder channel
markers. Aquatic vegetation is common in this segment of the estuary, and is mostly restricted
to and abundant in the backwaters, marshes and tributary mouths (Carlson, 1986). Carlson
identified seven distinct habitats:
Vegetated backwaters are shallow side channels or bays with silty bottoms and abundant
vegetation such as milfoil (Myriophyllum spp.) or wild celery (Vallisneria americma.). Typical
areas include Inbocht Bay, Stockport Marsh, Schodack Creek and east of Green Island.
Major tributaries include the tidal portion of streams with rocky or muddy substrates and
sparse vegetation. Typical areas include Roeliff Jansen Kill, Stockport Creek, and Island Creek.
Rock piles are the bases of navigation markers constructed of large boulders positioned
near the channel or sometimes in more shallow shoal areas. The boulders provide shelter in
areas exposed to strong currents. Most rock piles are located downriver of River Mile 149.
Shore areas are generalized shallow areas with gradual slopes, muddy or rocky substrates,
and sparse cover. This category is less specific than others and often has characteristics common
to backwaters and tributaries.
Channel border or shoal areas include areas where the bottom is shallower than the 32-
foot navigation channel but generally deeper than 10 feet. Rooted vegetation is usually lacking.
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Channel areas are within the navigation channel with substrates of sand, sand and
pebbles, and sand and silt.
Tail water habitats are areas within 0.4 miles of Federal Dam with substrates composed
mostly of gravel and bedrock. Tidal fluctuations and flows extend to the base of the dam at all
times except during high runoff periods.
1.2 Largemouth Bass
The largemouth bass, Micropterus salmoides, is a relatively large, robust fish that has a
tolerance for high temperatures and slight turbidity (Scott and Crossman, 1973). It occupies
waters with abundant aquatic vegetation. Largemouth bass show a low tolerance for low oxygen
conditions. The largemouth bass represents a top predator in the aquatic food web, consuming
primarily fish but also benthic invertebrates.
1.2.1 Foraging
Young largemouth bass feed on algae, zooplankton, insect larvae, and microcrustaceans
(Boreman, 1981). Largemouth bass can grow to 136 grams on a diet consisting of insects and
plankton. Larger prey are needed to continue growth after reaching a total length of 20 mm.
Young largemouth bass compete for food with a variety of other warmwater and bottom-feeding
fishes.
Johnson (1983) found that the diets of juvenile fish foraging in the St. Lawrence River
varied somewhat by location and length of the fish. Fish, insects including corixids, and other
invertebrates made up the diets in varying proportions.
Largemouth bass longer that 50 mm total length usually forage exclusively on fish. Prey
species include gizzard shad, carp, bluntnose minnow, silver}' minnow, golden shiner, yellow
perch, pumpkinseed, bluegill, largemouth bass, and silversides. turbidity (Scott and Crossman,
1973). Cannibalism is more prevalent among largemouth bass than among many species. Ten
percent of the food of largemouth bass 203 mm and longer is made up of their own fry turbidity
(Scott and Crossman, 1973).
Largemouth bass take their food at the surface during morning and evening, in the water
column during the day, and from the bottom at night. They feed by sight, often in schools, near
shore, and almost always close to vegetation. Feeding is restricted at water temperatures below
10°C and decreases in winter and during spawning. Largemouth bass do not feed during
spawning.
Information on feeding habits of largemouth bass in the upper Hudson River was
obtained for 73 juvenile and adult fish collected in Spring 1997 by the New York DEC and
analyzed by Menzie-Cura & Associates. Sample locations included Griffin Island, Stillwater,
Troy, and Catskill Creek. Thirty-one of the bass (42%) had fish remains in their digestive system
and represented the most common food item for adult bass. Crayfish were eaten occasionally at
most river locations. However, six of twenty bass collected at Catskill Creek had eaten crayfish.
Benthic invertebrates were observed in the diet of juvenile bass. It is difficult to reconstruct the
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amount of food eaten on a percentage basis because of many factors including inter- and intra-
species variability in biomass and differential digestion rates for different species eaten by fish.
On the basis of the available data it is estimated that fish comprise between 75 and 90% of the
diet. The spring 1997 data indicate that the balance of the diet is made up of benthic
invertebrates.
Exponent (1998a, 1998b) conducted gut analyses of 32 adult largemouth bass from
Griffin Island, Thompson Island Pool, and Stillwater in Fall 1997 and 21 bass collected from
Griffin Island and at Coveville in Spring 1998. Results were similar to those observed by
Menzie-Cura. Thirty-one of the bass (58%) had fish in their digestive systems and crayfish were
occasionally eaten. Smaller invertebrates (insects and crustaceans) were commonly present.
Frogs were also occasionally eaten.
We analyzed the Exponent (1998a, 1998b) data to evaluate the composition of
invertebrates eaten by bass. Our analyses were qualitative and focused on the composition of
predominant species in the gut contents of the fish. We looked for associations between
invertebrates in the gut contents and those that Exponent, Inc. collected in sediments and on
plants; we also considered the possibility based on our knowledge of the river that some
invertebrates are zooplankton members (not explicitly evaluated by Exponent.) Our analyses
revealed that largemouth bass feed on a variety of invertebrates that inhabit sediments, live on
plants, or are part of the zooplankton. Predominant invertebrate species observed in the gut
contents of bass include amphipods (both Hyallella and Gammarus), isopods (Caecidotea),
cladocerans (Bosmina, Chydorus, Eurycercus, and Simocephalus), cyclopoid copepods,
ostracods (e.g., Podocopa), and some chironomid larvae (Table A-l and Table A-2). The
Crustacea observed include a number of species that inhabit the water column (e.g., Bosmina),
occupy the littoral area and also open water (e.g., Chydorus sphaericus) , and live in close
association with surface sediments (e.g., Gammaus and Caecidotea). The amphipod Gammarus
spp. also occur in the plankton of the river and are likely influence by both water and surficial
sediment exposures. The isopod is probably a surface deposit feeder and is also likely influenced
by surface water as well as surficial sediment exposure.
It is difficult to reconstruct the amount of food eaten on a percentage basis because of
many factors including inter- and intra-species variability in biomass and differential digestion
rates for different species eaten by fish. Further, food consumption varies seasonally due to
changes in the availability of different prey items. Therefore, any estimate based on a few-
sampling dates and locations must be viewed as a rough indication of feeding preference. On the
basis of the available data obtained by Menzie-Cura and Exponent we estimate that fish comprise
between 75 and 90% of the average adult largemouth bass diet. The balance of the diet is made
up primarily of invertebrates including crayfish. Our estimates consider the relative size of the
prey organisms as well as the frequency of prey animals in the diet. Terrestrial animals are also
occasionally eaten. A qualitative assessment of the Exponent (1998a, 1998b) data suggests that
54% and 68% of the invertebrates are associated with sediments and 34 to 46% are associated
with water. Invertebrates associated with sediments such as amphipods and isopods are also
likely influenced by water exposures. The extent to which water or sediment affect the body
burdens of surface deposit feeders and meroplanktonic animals such as Gammarus is not known.
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1.2.2 Range, Movement and Habitat within the Hudson River
Largemouth bass have distinct home ranges and are generally found between 8 and 9
kilometers of their preferred range (Kramer and Smith, 1960). Kramer and Smith found that 96
percent of the fish remained within 91 meters of their nesting range. Fish and Savitz (1983)
found that bass in Cedar Lake, Illinois, have home ranges from 1,800 to 20,700 square meters.
The average home range was 9,245 square meters and the average primary occupation area,
defined as that area within the home range in which the fish spends the majority of its time,
including foraging, was 6,800 square meters.
Largemouth bass are almost universally associated with soft bottoms, stumps, and
extensive growths of a variety of emergent and submerged vegetation, particularly water lilies,
cattails, and various species of pond weed. It is unusual to find largemouth bass in rocky areas.
Largemouth bass are rarely caught at depths over 20 feet, although they often move closer to the
bottom of the river during the winter.
Mobility of largemouth bass also varies seasonally. Daily movements increase with
temperature from March through June, but decrease sharply during the hottest months (Mesing
and Wicker, 1986). Activity during warmer seasons occurs primarily near dawn and dusk, while
cool-water activity is most extensive in the afternoon.
A 1984 Malcolm-Pimie report prepared for New York State describes the results of a fish
surv ey taken that same year. The results are reported as number of fish by habitat type as well as
number of fish by lock pool for the upper Hudson River and associated canals. The numbers
shown are not significant in terms of absolute numbers, but rather provide a qualitative
indication as to the relative distribution of fish within each habitat area and within each lock
pool. Largemouth bass were found in each of the lock pools (see Table A-3).
Largemouth bass were found throughout the Upper Hudson River in significant numbers.
Major concentrations of fish were within areas where submerged and emergent vegetation,
overhang, and bottom debris provided adequate cover (MPI, 1984). Largemouth bass were not
found in the main, natural channel of the river nor in the rapids (see Table A-3).
In the Lower Hudson River Estuary, Carlson (1986) found that largemouth bass
preferentially winter in five major areas:
•	Coxsackie Bay (roughly River Mile 130)
•	The mouth of the Catskill Creek (River Mile 115)
•	The mouth of the Espopus Creek (River Mile 103 )
•	The mouth of the Rondout Creek (River Mile 92)
•	The mouth of the Wappinger Creek (River Mile 67)
Largemouth bass prefer to establish habitats near dense vegetation not just during winter,
primarily near milfoil (Myriophyllum verticillatum) (Carlson, 1992). A study of largemouth bass
in two freshwater lakes in central Florida found a positive correlation between the use of specific
habitats in proportion to the availability of those habitats to the fish (Mesing and Wicker, 1986).
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Vegetative habitat covers included Panicum spp., cattails (Typha spp.), and water lilies (Nuphar
spp.).
In a 1982 survey of the Lower Hudson River Estuary (Carlson, 1986), largemouth bass
were found to prefer vegetated backwater and tributary locations, with a few fish caught in rock
piles and tail water. This suggests a preference for nearshore areas rather than the main channel.
1.23 Reproduction
Largemouth bass mature at age five and spawn from late spring to mid-summer, in some
cases as late as August. Male largemouth bass construct nests in sand and/or gravel substrates in
areas of nonflowing clear water containing aquatic vegetation (Nack and Cook, 1986). This
aquatic vegetation generally consists of water chestnut (Trapa natans), milfoil (Myriophyllum
verticillatum), and water celery (Valisneria americana).
Females produce 2,000 to 7,000 eggs per pound of body weight (Smith, 1985) and leave
the nest after spawning.
1.3 White Perch
White perch, Morone americana, are resident throughout the Hudson River Estuary
below Federal Dam. They are semi-anadromous and migrate to the lower lock pools of the
Upper Hudson River to spawn. They are one of the most abundantly collected species in the
region and are the dominant predatory fish in the Lower Hudson River (Bath and O'Connor,
1981; Wells et al„ 1992).
1.3.1 Foraging
Adult white perch are benthic predators, with older white perch becoming increasingly
piscivorous (Setzler-Hamilton, 1991). Insect larvae and fishes comprise the principal food of
white perch, and dipteran larvae, especially chironomids, represent the most important insect
prey. White perch have two peak feeding periods: midnight and noon. Midnight is the most
important foraging time.
In a study of Hudson River larvae. Hjorth (1988) found that white perch larvae fed almost
exclusively upon microzooplankton. Adults and copepods of Eurytemora affinis were the
preferred food, but when they were not present, white perch larvae consumed rotifers,
cladocerans, and other seasonal zooplankters.
From August through October, young-of-the-year white perch in the Hudson River feed
predominantly on amphipods supplemented by copepods and mysids (NOAA, 1984). In a study
of white perch taken from the Hudson River between Haverstraw and Bear Mountain (Bath and
O'Connor, 1985), gammarid amphipods occurred most frequently in the stomachs of immature
and mature white perch. Mature fish ate a higher proportion of isopods and annelid worms than
did immature fish during the spring and summer. During May and June, mature fish contained
between 2 and 8.6 percent by occurrence, while gammarid amphipods were the predominant
food item in July, 64 percent, and November, 75 percent. Insect larvae occurred in fewer than 2
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percent of mature fish during May and June, and were not found again during the remainder of
the sampling year. White perch in this oligohaline sector of the river fed primarily at or near the
sediment-water interface. Their preferred prey items consisted of epibenthic crustaceans and
insects.
In 1973 and 1974, Lawler, Matusky & Skelly Engineers conducted an extensive biomass
and stomach content analysis in the lower Hudson River on behalf of Central Hudson Gas &
Electric Corporation (LMS, 1974). Their study found that the dominant food item consumed by
the 49 white perch obtained from Roseton and Danskammer Point during the spring were
amphipods, representing 93% of the total identified food volume. During fall sampling,
amphipods (Gammarus spp. and Leptochierus plumulosus) were the dominant food item
consumed by the 36 white perch captured. Copepods were found to be a dominant prey item for
smaller white perch, but were infrequently found in larger white perch. During the 1974
sampling season, the largest size range of white perch (>17 cm) consumed amphipods and
isopods, supplemented by chronomid larvae during the spring and summer, and the decapods R
harrissi and C. septemspinosa during the fall and winter. The data on gut contents indicate that
white perch feed primarily on benthic invertebrates and select arthropods such as amphipods and
chironomid insect larvae (based on personal knowledge of benthic invertebrates in the lower
Hudson). This fish species probably makes use of all depths in the river for foraging based on
collections made using bottom trawls and bottom gill nets in the lower Hudson River (personal
observations.)
A small subset of the white perch samples taken as part of the TAMS/Gradient Phase 2
activities were analyzed for gut contents. A large number of chironomid were found and
identified to evaluate the relative contribution of sediment and water sources to the diet of white
perch resident in the Hudson River. Table A-4 shows the results of these analyses. Spaces in the
table were left blank when the habitat and association of a prey item were unknown.
Table A-4 shows that white perch in the Hudson River generally consume chironomid
equally associated with both the water column and sediment. Particular individual fish (i.e.. Fish
No. 5) appear to feed exclusively on water column sources, while others (Fish No. 1) show a
greater sediment influence. Chironomid represent a significant proportion of the available
benthos in the Hudson River. Based on the table shown above, it appears that this collection of
white perch consumed organisms that live on plants and the surfaces of sediments as well as
those that burrow into sediment.
Another group of 40 white perch from the NYS DEC 1996 sampling effort were also
evaluated by Menzie-Cura for gut contents. These fish were collected in the river at Troy and at
Catskill Creek in the Spring of 1997. Chironomid insect larvae were the most common food
item in the diet (75% of fish) and amphipods were the next most common dietary item (35% of
fish). These observations are similar to those made on the fish collected during the
TAMS/Gradient Phase 2 sampling.
The data on feeding behavior for white perch indicate that this species eats invertebrates.
The species can make use of near-shore areas as well as the main river bottom for foraging.
Feeding is elective for arthropods such as chironomid insect larvae and amphipods. In nearshore
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areas where rooted aquatic plants are present, the species probably feeds on arthropods
associated with both sediments and plants. In areas along the main river bottom, the species
probably feeds primarily on benthic invertebrates. Benthic invertebrates include species that vary
in the degree of surface water, pore water, and sediment exposure. Oligochaete worms form a
small part of the white perch diet which suggests that this species does consume organisms that
are closely associated with sediment. This is also suggested by the presence of chironomid insect
larvae such as Tanytarsus, Procadius, Chironomus and Cryptochironomus in their digestive
system that are also reported to burrow into sediments rather live on surfaces of plants and
substrates (Simpson and Bode, 1980, personal observations). However, white perch also eat
benthic organisms that may be more strongly influenced by surface water exposure. These
include chironomid insect larvae such as Polypedilum illinoense grp. and Dicrotendipes
neomodestus that tend to live on the surface of substrates. The amphipod Gammarus is also
likely to be influenced strongly by water exposures because it lives on or near surface sediments
and also swims into the water column.
Based on available information we estimate that the diet of white perch contains 75%
invertebrates that are influenced primarily by sediments and 25% of invertebrates that are
influenced by water. This estimate is uncertain. If we assume that benthic species are more likely
to be exposed to sediment than to water, we estimate that the 50 to 100% of the white perch diet
consists of invertebrates that are primarily influenced by sediment exposure.
1.3.2 Range, Movement and Habitat within the Hudson River
White perch prefer shallow areas and tributaries, generally staying close to rooted
vegetation. The position of this fish relative to the water surface varies somewhat based on size
(Selzer-Hamilton, 1991). White perch are bottom oriented fish that accumulate in areas with
dissolved oxygen of at least 6 mgL"1 (Selzer-Hamilton, 1991). Gladden et al., (1988) compared
the spatial segregation of a number of fish species in the Hudson River estuary and found the
majority of white perch over the course of three years to prefer the main channel bottom
Because white perch make spawning migrations, they are considered semianadromous.
Spawning occurs in the upper reaches of the Lower Hudson River. Eggs, larvae, and juveniles
gradually disperse downstream throughout the summer. Young-of-the-year white perch often
congregate in the Tappan Zee and Croton-Haverstraw regions, with a smaller peak from
Saugerties to Catskill (Lawler, Matusky & Skelly Engineers, 1992).
During the summer, white perch move randomly within the local area. Adult white perch
tend to accumulate at 4.6-6 meters depth during the day and move back to the surface during the
night (Selzer-Hamilton, 1991). White perch spend the winter in depths of 12-18 meters, but
occasionally can be found at depths as low as 42 meters. Hudson River white perch are
acclimated at 27.8°C and avoid temperatures that are below 9.5°C or above 34.5°C.
White perch prefer shallow and wetland areas to other habitats, but undertake extensive
migrations within the estuary (Carlson, 1986). White perch were most often found in tributaries,
vegetated backwaters, and shore areas in the Lower Hudson River. Carlson observed the greatest
increase in summertime abundance between River Mile 102 and 131. By winter, the majority of
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white perch move downriver, although some overwinter in the upper estuary in areas over 32 feet
deep (Texas Instruments, 1980).
In the Upper Hudson River, white perch were taken in the lower two lock pools (MPI,
1984).	They were taken primarily in shallow and wetland habitats (see Table A-3).
All ages of white perch are adversely affected by high levels of suspended solids. Adult
white perch can be found in water with pH ranges between 6.0 and 9.0 and avoid areas with
moderate turbidity at 45 NTU, although they can be found in either clear or highly turbid areas
(Selzer-Hamilton, 1991).
1.3.3 Reproduction
Spawning is episodic, usually occurring in a two week period from mid-May to early
June when the water temperatures are between 16° and 20°C. Hudson River white perch tend to
spawn beginning in April when the water temperature reaches 10° to 12°C, and continue
spawning through June. In years when the water temperature increases gradually, the peak
spawning period lasts from four to six weeks (Klauda et al., 1988).
White perch prefer to spawn in shallow water, such as flats or embankments, and tidal
creeks. They generally spawn over any bottom type (Scott and Crossman, 1973). Spawning is
greatest in the fresh water regions around Albany, and between River Mile 86 and 124
(McFaddenet al., 1978; Texas Instruments, 1980).
Fecundity of Hudson River white perch age 2 to 7, the maximum age of white perch in
the river, ranges from less than 15,000 to more than 160,000 eggs per female (Bath and
O'Connor, 1981). Mean fecundity in that study was 50,678 eggs per female and was dependent
upon size.
1.4 Yellow Perch
Yellow perch, Perca flavescens, are gregarious fish that travel in schools of 50-200.
They feed omnivorously on organisms from the sediment and in the water column. Yellow
perch are an important freshwater sport fish.
1.4.1 Foraging
Yellow perch feed actively early in the morning or late in the evening, with less feeding
taking place later in the day. At night the fish are inactive and rest on the bottom (Scott and
Crossman, 1973).
Young fish feed primarily upon cladocerans. ostracods, and chironomid larvae (Smith,
1985).	As they grow, they shift to insects. Chabot and Maly (1986) found that fish that were
one to one and a half years old preferred large zooplankton species. Larger fish eat crayfish,
small fish, and odonate nymphs (Smith, 1985). Piavis (1991 Yellow perch habitat requirements
for) found that approximately 25 percent of the diet of yearling yellow perch was made up of
other perch. From May through August, chironomids generally comprise between 30 percent
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and 60 percent of the diet. Piavis noted that adult yellow perch forage on midge larvae,
anchovies, killifish, silversides, scuds, and caddsisfly larvae. Adults also forage on
pumpkinseed.
Information on feeding behavior of yellow perch in the Hudson is available from the
work conducted by Exponent (1998a, 1998b) and fish collected by NYSDEC in Spring 1997 and
analyzed by Menzie-Cura. The Exponent data set consists of fish that are in the range of 6.1 to
14.6 cm . The fish analyzed by Menzie-Cura were larger (median = 21.5 cm, maximum = 31.8
cm). Both data sets indicate that yellow perch feed primarily on invertebrates. Based on the
literature fish may be eaten by larger yellow perch. The diet of yellow perch indicates they eat a
wide variety of invertebrates from the water column, from plants, and from sediments Table A-l
and Table A-2). Amphipods (especially Gammarus), isopods (Caecidotea), cyclopoid copepods,
and most of the cladoceran species were predominant in yellow perch stomachs. Analyses
performed by Menzie-Cura indicated that larger yellow perch also eat small clams and snails as
well as oligochaete worms; all of these are common benthic species. Predominant insect larvae
in the guts of yellow perch (6 - 14 cm length) included species that are readily available on the
surfaces of plants and on sediments as well as diptera pupa which tend to be planktonic.
Our qualitative assessment of the Exponent (1998a, 1998b) data for yellow perch in the
6-14 cm size range suggests that benthic invertebrates could comprise as much as 70% of the
diet. However, we estimate that up to 56% of the diet could consist of invertebrates that live
primarily in the water (e.g., zooplankton and on plants). Some of the benthic invertebrates
associated with the sediments could also be strongly influenced by surface water (e.g.,
Gammarus spp.) Therefore, the component of the invertebrate diet that is exposed to surface
water could be even greater than that indicated from a simple division of benthic and non-
benthic. We estimate that this component could be as much as 65% (and might be even higher).
Oligochaete worms were observed in the gut contents of a number of larger yellow perch
(11 to 32 cm) indicating that these fish forage directly in the sediments. Larger yellow perch also
probably eat fish although none were observed in the gut contents examined by Menzie-Cura.
We estimate that fish are probably a small part of the diet of large yellow perch (i.e., less than
10%).
1.4.2 Range, Movement and Habitat within the Hudson River
Yellow perch are most abundant in waters that are clear and have moderate vegetation
and sand, gravel or mucky bottoms. Abundance decreases with increases in turbidity or with
decreases in abundance of vegetation. Adult perch prefer slow moving waters near the shore
areas where there is moderate cover.
Yellow perch studied in the freshwater Cedar Lake in Illinois stayed within a 5 to 20
kilometer home range (Fish and Savitz, 1983). The fish preferred heavy and light weeded as
well as sandy areas, and were virtually never seen in open water (see Table A-5).
Yellow perch are found throughout the Upper Hudson River (MPI. 1984), particularly
near River Mile 153 (Federal Dam) and again up near the Thompson' Island Pool area (see Table
A-5).
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Yellow perch prefer wetlands, embayments and shallow areas to other habitats, but can
be found in all types of habitats to some degree. They primarily inhabit the freshwater portion of
the estuary with an apparently even distribution of early life stage abundance from river mile 77
through 153 (Texas Instruments, 1976; Carlson, 1986).
Yellow perch require a minimum dissolved oxygen concentration for all life stages of 5
mg/L-1. Seasonal lethal dissolved oxygen is 0.2 mg/L-1 in winter and 1.5 mg/L-1 in summer.
Yellow perch are poikilothermic, requiring less oxygen in winter. Suboptimal dissolved oxygen
may have acute implications, in that if a preferred habitat contains less dissolved oxygen than
necessary, then fish may leave the area, subjecting them to predation, or they may experience
retarded growth, impacting survivability (Piavis, 1991).
1.4.3 Reproduction
Yellow perch are among the earliest spring spawners, with spawning occurring near
vegetated areas and in upstream, tidal tributaries (Carlson, 1986). In the Chesapeake River, adult
yellow perch migrate from downstream stretches of tidal waters to spawning areas in less saline
upper reaches in mid February through March (Piavis, 1991). Spawning occurs when water
temperatures reach 45-52°F in April and May in New York waters (Smith, 1985). Males arrive
at the spawning ground first. Spawning occurs in 5 to 10 feet of water over sand, rubble, or
vegetation. Eggs are often draped over logs or vegetation.
1.5 Brown Bullhead
The brown bullhead, Ictalurus nebulosus, is a demersal omnivorous species occurring
near or on the bottom in shallow, warmwater situations with abundant aquatic vegetation and
sand to mud bottoms. Brown bullhead are sometimes found as deep as 40 feet, and are very
tolerant of conditions of temperature, oxygen, and pollution (Scott and Crossman, 1973).
1.5.1 Foraging
The brown bullhead feeds on or near the bottom, mainly at night. Adult brown bullhead
are truly omnivorous, consuming offal, waste, molluscs, immature insects, terrestrial insects,
leeches, crustaceans including crayfish and plankton, worms, algae, plant material, fishes, and
fish eggs. Raney and Webster (1940) found that young bullheads in Cayuga Lake near Ithaca,
New York fed upon crustaceans, primarily ostracods and cladocerans, and dipterans, mostly
chironomids. For brown bullhead in the Ottawa River, algae have also been noted as a
significant food source (Gunn et al., 1977).
Information on the diet of brown bullhead in the Hudson River is available for the river
north of Newburgh (LMS, 1975). This work indicated that brown bullhead displayed a varied
and seemingly opportunistic feeding behavior. Smaller bullheads (size interval I) ate primarily
chironomid insect larvae, amphipods.. odonata, and oligochaete worms. Larger bullheads
displayed a similar feeding behavior but also ate young-of-the-year fish. Observations made on
gut contents of brown bullheads collected in the Kingston area indicated that oligochaete worms
were a major part of the diet.
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Additional information on feeding habits of Hudson River fish is available from
Exponent (1998a, 1998b) and for fish collected in Spring 1997 and analyzed by Menzie-Cura..
The available data from these studies indicates that the diet reflects a large benthic invertebrate
component. Only one fish was observed in a gut of one bullhead. Our analysis of the Exponent
data indicate that predominant prey items for bullheads included small clams, amphipods
(
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1.6 Pumpkinseed
The pumpkinseed, Lepomis gibbosus, is the most abundant and widespread fish in New
York State (Smith, 1985). In the Hudson River, they feed exclusively upon epiphytic water
column organisms. Pumpkinseed are important forage for predatory fishes.
1.6.1 Foraging
Pumpkinseed are diurnal feeders in areas with low light intensity and migrating to cooler,
deeper water at night. They do not feed in winter and only begin to feed when the water
temperature rises above 8.5° C. Pumpkinseed forage on hard shelled gastropods and are able to
exploit food sources not available to other fish, particularly mollusks (Sadzikowski and Wallace.
1976 A comparison of food habits of). Food is mainly a variety of insects and, secondarily, other
invertebrates. Small fish or other vertebrates, e.g., larval salamanders, can also contribute
significantly to the pumpkinseed diet (Scott and Crossman, 1973).
Early juvenile pumpkinseed prefer chironomid larvae, amphipods, cladocerans, and, to a
lesser extent, copepods as food items (Sadzikowski and Wallace, 1976). Juvenile pumpkinseed
in the Connecticut River feed primarily upon benthic organisms (Domermuth and Reed, 1980).
A study conducted in the St. Lawrence River near Massena found that juvenile pumpkinseed
between 77 and 113 mm in length consumed 94 percent chironomids (Johnson, 1983). Feldman
(1992) found that juvenile pumpkinseed taken from Thompson Island Pool in the Hudson River
consumed zooplankton such as cladocerans, copepods, ostracods, chironomids and talitrids.
Adults consumed mostly gastropods on plants. No sediment source of food was noted.
Adult pumpkinseed primarily prefer insects and secondarily prefer other invertebrates.
As the fish age and increase in size, other fish and invertebrates other than insects constitute a
larger portion of the diet, up to 50 percent of the diet.
A small subset of the pumpkinseed samples taken as part of the TAMS/Gradient Phase 2
activities were analyzed for gut contents. A large number of chironomid were found and
identified to evaluate the relative contribution of sediment and water sources to the diet of
pumpkinseed resident in the Hudson River. Table A-6 shows the results of these analyses.
Spaces in the table were left blank when information on habitat and association were unknown.
These gut content analyses demonstrate that pumpkinseed in the Hudson River appear to feed
largely upon species associated with plants or other surface substrates.
Additional data on the diet of pumpkinseed sunfish is available from the collections of
yearling fish made by Exponent (1998a, 1998b). These data indicated that the diet of the fish was
comprised invertebrate commonly associated with benthic environments. Predominant prey
items included small clams, snails, amphipods. isopods. and insect larvae. However, most of the
invertebrate prey items live at or on the surface of substrates rather than deep within the
sediments. Gastropod snails were a predominant item in the diet similar to the observations of
Feldman who observed that these were an important part of the diet of adult fish; he presumed
they were eating gastropods living on plants. The composition of the chironomid insect larvae in
the gut contents of yearling sunfish is also suggestive that yearling fish feed on surface substrates
rather than on burrowing animals; Dicrotendipes spp. were commonly observed while
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Procladius spp. were rarely seen in the gut contents. The amphipod Gammarus spp. is also an
important item in the diet and is considered epibenthic and meroplanktonic.
The diet of pumpkinseeds changes with size and age as noted above. Young-of-the-year
fish may consume a proportionally greater amount of smaller invertebrates associated with the
water column while larger juvenile and adult sunfish may consume a proportionally greater
amount of benthic invertebrates. These benthic invertebrates largely include species that live on
or at the surface of substrates. Gastropods, for example, feed on surface substrates and are likely
exposed to water conditions directly above sediments or around stands of plants. The diet of
pumpkinseed sunfish consist of invertebrates that may be more influenced by conditions at and
above the water/sediment interface than by conditions deeper in the sediments.
1.6.2	Range, Movement and Habitat within the Hudson River
Pumpkinseed are restricted to freshwater and are found in shallow quiet areas with slow
moving water. Pumpkinseed are usually found in clear water with submerged vegetation, brush
or debris as cover. They rely on the littoral zone as a refuge from predators and for foraging
material (Feldman, 1992).
Several investigators have noted the ability of pumpkinseed to return to a home range,
even after significant displacement (Hasler and Wisby, 1958; Fish and Savitz, 1983; Shoemaker,
1952; Gerking, 1958).
Pumpkinseed are found throughout the Upper Hudson River above Federal Dam (MPI,
1984)	(see Table A-7). They are found primarily in wetland, stream mouth, and embayment
habitats (see Table A-7).
1.6.3	Reproduction
Spawning occurs during early spring and summer although it can extend into late summer
(Scott and Crossman, 1973). Nests are built in water that is 6 to 12 inches deep, forming
colonies close to aquatic vegetation and other pumpkinseed nesting areas. Nesting occurs when
the water temperature reaches 60°F and lasts approximately 11 days. Nesting substrates include
sand, sandy clay, mud, limestone, shells and gravel. Females lay from 600 to 5,000 eggs (Smith,
1985).	Males guard the nest for one week after hatching.
1.7 Spottail Shiner
The spottail shiner, Notropis hudsonius. consumes plankton, aquatic insects, and some
bottom-dwelling organisms, and is therefore exposed to sediment and water column. The
spottail shiner is consumed by virtually all other fish, including larger spottail shiners.
1.7.1 Foraging
Spottail shiners are morphologically suited for bottom foraging in that they have rounded
snouts that hang slightly over their mouths. They do not however feed exclusively upon benthic
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organisms. Spottail shiners are considered omnivorous and opportunistic feeders, feeding upon
cladocerans, ostracods, aquatic and terrestrial insects, spiders, mites, fish eggs and larvae, plant
fibers, seeds, and algae (Texas Instruments, 1980; Scott and Crossman, 1973; Smith, 1987).
Based on work in the lower Hudson River, Gladden et al. (1988) consider zooplankton to be a
major part of the spottail shiners diet.
In Lake Nipigon, Ontario (Scott and Crossman, 1973), 40 percent of the diet was made
up of Daphnia spp. Other cladocerans were also present, and aquatic insect larvae, including
chironomids and ephemeropterids, comprised another 40 percent of the spottail shiner diet.
In Lake Michigan, Anderson and Brazo (1978) found that terrestrial dipterians and fish
eggs represented the major components of the spottail shiner's diet in the spring and summer. In
the fall, chironomid larvae and terrestrial insects represent the major diet components.
Information on the diet of spottail shiners in the Hudson River was obtained by Exponent
(1998a, 1998b). We evaluated these data qualitatively and found that the major food items
appeared to be organisms with a high association for the water column (algae, cladocera, and
copepods) and species that live in close associated with surface substrates (ostracods, amphipods,
chironomid larvae and caddisfly larvae). The composition of the predominant chironomid larvae
in spottail shiner gut contents are considered surface sprawlers or epiphytic rather than sediment
burrowers.
Observations on feeding behavior of spottail shiner suggests they can range from benthic
feeders to water column feeders. Many of the benthic invertebrates include surface dwellers that
are influenced by surface water conditions. We estimate spottail shiners primarily eat
invertebrates that are more directly influenced by surface water conditions than by conditions
below the surface of sediments. However, benthic invertebrates could be an important part of the
diet based on the literature.
1.7.2	Range, Movement and Habitat within the Hudson River
Spottail shiners prefer clear water and can be found at depths up to 60 feet (Smith, 1987),
but tend to congregate in larger numbers in shallow areas (Anderson and Brazo, 1978) (see Table
A-7). Spottail shiners in the Upper Hudson River were primarily taken in wet dumpsite habitat
areas (MPI, 1984) (see Table A-7).
1.7.3	Reproduction
Spottail shiners spawn in the spring and early summer in habitats with sandy bottoms and
algae (Scott and Crossman, 1973;. In New York waters, spawning usually occurs at the mouths
of streams in June or July. Ovarian egg counts range from 100 to 2,600 eggs per female,
depending upon total size (Smith, 1985).
1.8 Striped Bass
The striped bass. Morone saxatilis. is an anadromous species that enters the Hudson
River to spawn throughout the estuarine portion of the river, but particularly upstream from the
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saltfront. While most adults return to the sea after spawning, some remain within the estuary for
a period. Young of the year gradually move downstream during the summer months and move
out of the river during the winter. Historically, striped bass were an important Hudson River
fisheries species, but high polychlorinated biphenyl levels closed the fishery in 1976.
1.8.1 Foraging
Striped bass are voracious, carnivorous fish that feed in groups or schools and alternate
periods of intense feeding activity with periods of digestion (Raney, 1952). Peak foraging time
for juveniles is at twilight. Adults feed throughout the day, but forage most vigorously just after
dark and just before dawn. Adults typically gorge themselves in surface waters, then drop down
into deeper waters to digest their food. Seasonally, adult feeding intensity lessens in the late
spring and summer. Feeding ceases during spawning.
Striped bass feed primarily upon invertebrates when they are young, consuming larger
invertebrates and fish as they grow larger. Post yolk-sac larvae feed upon zooplankton. Hjorth
(1988), in a study of Hudson River striped bass larvae, found that copepodids and adults of the
calanoid copepod Eurytemora affinis were the most frequently selected prey item. Hudson River
striped bass larvae also fed upon cladocerans, especially Bosmina spp. Copepods and
cladocerans are the most common zooplankters in the Hudson River during times that striped
bass larvae are present (Texas Instruments, 1980).
A study by the Hudson River power authorities (Texas Instruments, 1980) found that
striped bass up to 75 mm preferred amphipods Gammarus spp., calanoid copepods, and
chironomid larvae. Fish from 76-125 mm preferred Gammarus and calanoid copepods. Those
from 126-200 mm preferred a fish prey, Microgadus tomcod.
Fish are generally considered to make up the bulk of the diet of adult striped bass.
Researchers commonly find engraulids and clupeids the most the most common prey
(summarized in Setzler et al., 1980). Because striped bass feed in schools, schooling species of
fish generally comprise a large portion of the diet. Striped bass are known to gorge themselves
upon schooling clupeids and engraulids, concentrating their feeding activity upon whatever
species is most abundant. Many other species have also been noted in striped bass diets, for
example, mummichogs, mullet, white perch and tomcod. Invertebrates also may persist in the
diet of adult striped bass. Schaefer (1970) found that in Long Island Sound, fish from 275-399
mm fork length fed primarily (85 percent by volume) upon invertebrates, primarily the
amphipods Gammarus spp. and Haustorius canadensis and the mysid shrimp Neomysis
americana. Fish from 400-599 mm divided their diet between fish (46 percent) (bay anchovy,
Atlantic silverside. and scup) and amphipods. Sixty percent of the diet of fish from 600-940 mm
in length was made up of fish, but even these larger animals consumed amphipods, mysids, and
lady crabs. Schaefer hypothesized that the continued importance of invertebrates in larger fishes
diets may have resulted from turbidity in the surf zone making it difficult to pursue fast-
swimming fish.
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1.8.2	Range, Movement and Habitat within the Hudson River
Striped bass are anadromous, spawning in tidal rivers, then migrating to coastal waters to
mature. Abundant data on distribution and abundance of early life history stages of striped bass
are available, because the Hudson River utilities have conducted annual surveys of the
distribution of striped bass in the Hudson River since 1973. Field sampling has been conducted
from New York City, the George Washington Bridge at River Mile 12, to the Federal Dam.
Since 1981 the sampling programs have been adjusted to emphasize collection of striped bass.
Additionally, the utilities have sponsored mark-recapture studies of striped bass (e.g., McLaren
et al., 1981). These studies documented movement of the species within and outside the river.
The upstream spring migration of adult striped bass begins in March and April and ranges
up to the Federal Dam. As young striped bass grow during the summer, they move downstream.
Even at the egg stage, striped bass can be found throughout the Hudson River Estuary, although
peak abundances of eggs and larvae are usually found from the Indian Point to Kingston reaches
of the river, approximately River Miles 100-150 (Lawler, Matusky & Skelly Engineers, 1992).
Downstream movement is partially determined by flow rate.
At approximately 13 mm total length, striped bass form schools and move into shallow
waters (Raney, 1952). In the Hudson River, young-of-the-year striped bass begin to appear in
catches during early July. They move shoreward as well as downstream throughout the summer
and are usually found over sandy or gravel bottoms (Setzler et al., 1980). The utilities' studies
typically find peak catches of young-of-the-year fish at River Mile 35. at the southern end of
Croton-Haverstraw Bay (Lawler, Matusky & Skelly, 1992).
Some young-of-the year fish leave the estuary during the summer and fall (Dovel, 1992
Movements of immature striped bass). Dovel (1992) summarized movements of young striped
bass within the river based upon studies conducted by the utilities and others. He found that
young striped bass congregate in the vicinity of the salt front during the winter, although
movements in the Lower Hudson River continue throughout the winter. During the spring, some
yearling striped bass continue to emigrate from the river, while other move upstream. By their
second year, most striped bass have left the river, except for their returns during spawning
migrations.
1.8.3	Reproduction
In the Hudson River, striped bass spawn above the salt front and potentially as far
upstream as the Federal Dam At River Mile 153. On average, however, they do not spawn as far
upstream as white perch. During periods of low freshwater flow, striped bass spawn further
upstream than in years of high flow. Age at sexual maturity of striped bass depends upon water
temperature (Setzler et al., 1980). Males mature at approximately two years, and females mature
later. Spawning is triggered by sudden rises in temperature and occurs at or near the surface.
Spawning occurs in brief, explosive episodes. Eggs are broadcast into the water, where a single
female may be surrounded by as many as 50 males.
A-18
MCA/TetraTech
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1.9 Shortnose Sturgeon
The shortnose sturgeon, Acipenser brevirostrum, is the smaller of two sturgeons that
occur in the Hudson River. Both the shortnose and Atlantic sturgeons have been prized for their
flesh and their eggs for caviar, but sturgeons were also purposely destroyed when they became
entangled in the shad nets that were once common on the Hudson River. The shortnose sturgeon
has been listed on the federal endangered species list since 1967. Because it is rare and because
historical data often link it with the Atlantic sturgeon, only limited data are available to describe
its natural history.
1.9.1	Foraging
No field studies have documented the diets of larval shortnose sturgeon. Buckley and
Kynard (1981) observed post yolk-sac larvae that they had hatched in the laboratory to feed upon
zooplankton.
Juvenile shortnose sturgeon feed mostly upon benthic crustaceans and insect larvae
(summarized in Gilbert, 1989). Juveniles of 20-30 cm fork length have been recorded as feeding
extensively upon cladocerans. Adult fish feed indiscriminately upon bottom organisms and off
emergent vegetation. Food items of juvenile and adult fish include polychaete worms, molluscs,
crustaceans, aquatic insects, and small bottom-dwelling fishes (Gilbert, 1989).
Juveniles and adults generally feed by rooting along the bottom, consuming considerable
mud and debris with food items. As much as 85-95 percent of their stomachs may contain mud
and other non-food material. Conversely, shortnose sturgeon may also feed upon gastropods
that live upon vegetation. Shortnose sturgeon from New Brunswick and South Carolina have
been reported as including almost exclusively gastropods with no non-food matter.
Shortnose sturgeon mostly feed at night or when turbidity is high, when they move into
shallow water to feed. Adults move into areas as shallow as 1-5 m and forage among the weeds
and river banks. Feeding occurs in deeper water during the summer, possibly in response to
water temperature. The relatively little feeding occurs during the winter also occurs in deeper
waters.
Shortnose sturgeon are not thought to feed in groups or schools. Mark-recapture data
(Dovel et al., 1992) suggest, however, that fish tend to move as groups. Fish of the same group
would therefore tend to eat in the same general areas.
1.9.2	Range, Movement and Habitat within the Hudson River
Shortnose sturgeon are found throughout the portion of the Hudson River below the
Federal Dam. They are considered anadromous because they are sometimes taken by
commercial fishermen at sea. However, their movements are more restricted than Atlantic
sturgeon, and most of the Hudson River population probably does not leave the river. The fish
does not require a marine component to its life cycle: a landlocked population in the Holyoke
Pool, part of the Connecticut River system, persisted from 1848 until a fish ladder was
constructed in 1955.
A-19
MCA/TetraTech
-------
Adult shortnose sturgeon winter in Esopus Meadows, approximately at River Mile 90
(Dovel et al., 1992), in the Croton-Haverstraw region, approximately River Mile 35 (Geoghegan
et al., 1992), and possibly in other small areas not yet identified.
Adult fish migrate upstream to spawn in the upper reaches of the portion of the Hudson
River south of the Federal Dam in spring and then disperse downstream to feed during the
summer. They can be taken throughout the fresh waters of the tidal portion of the river during the
summer months.
The size of the nursery area for shortnose sturgeon larvae and young is difficult to
determine, because few specimens are collected. Based upon the utilities' collections of young
of the year in Haverstraw Bay, Dovel et al. (1992) presume that the young fish occupy the same
freshwater portion of the estuary as do the adults of the species.
1.9.3 Reproduction
Shortnose sturgeons spawn in the upper reaches of the estuarine portion of the Hudson
River, approximately River Miles 130-150. Spawning is limited to the last two weeks in April
and the first two weeks in May. Throughout its range, the shortnose sturgeon spawns at water
temperatures of 9-14°C (summarized in Crance, 1986). Dovel and his co-workers (1992) found
that in 1979 and 1980, spawning in the Hudson River occurred at water temperatures of 10-18°C.
Age and size of the fish at maturity varies by latitude (Gilbert, 1989). In the Hudson
River, females first spawn at approximately 9-10 years and males at 11-20 years. Spawning does
not occur each year and is most likely controlled by environmental factors rather than by
endocrinology.
Shortnose sturgeons produce approximately 40,000-200,000 eggs per spawning in New
York waters.
A-20
M C A/T etraT ech
-------
Appendix A Tables
-------
Table A-1
Predominant Food Items in Hudson River Fish
(note: less common items are not listed)

Largemout
h bass
Pumpkinse
ed sunfish
Brown
bullhead
Yellow
perch
Spottail
shiner
White
perch
PLANT MATTER
Algae
»*



w»*

Vegetation






BRYOZOA
Bryozoa statoblasts




WW*

BIVALVE MOLLUSCS (CLAMS)
Pisidium

...

X


Sphaerium

...
*•*



GASTROPOD MOLLUSCS (SNAILS)
Gastropods

...

X


Planorbidae

WW*




Valvata bicarinata

***




OLIGOCHAETE WORMS
Oligochaete worms

XX
X


AMPHIPOD CRUSTACEANS
Amphipod
ww
WW*
www
"*,XXX
***w
XX
Gammarus spp.
WW
*ww*
WW WW
wwww


Hyalella azteca
**


WW


ISOPOD CRUSTACEANS
Caecidotea
WW
WW
w**
"*.XXX

CLADOCERAN CRUSTACEANS
Bosmina longirostris
w*





Camptoceerus



***
**

Chydorus



www
WW

Chydorus sphaericus
WW*

***
WW*
www*

Cladocera


* *
***
wwww

Eurycercus
***

WW
****
www*

Pleuoxus denticulatus




*w *

Sida



WW*


Simocephalus serrulatus
WW

**
www


COPEPOD CRUSTACEANS
Cyclopoid copepods


***» **
OSTRACOD CRUSTACEANS
Ostracod
****

Hudson River Database Release 4.1
1 of 2
MCA/TetraTech
-------
Table A-1
Predominant Food Items in Hudson River Fish
(note: less common items are not listed)

Largemout
h bass
Pumpkinse
ed sunfish
Brown
bullhead
Yellow
perch
Spottail
shiner
White
perch
Podocopa
**
I
- I
**

AQUATIC INSECTS
Chaoborida






Chaoborus


**



Chironomidae
Ablabesmyia annulata

**




Ablabesmyia amallochi



**


Chironomus spp.
**
**
**
**
****
XX
pupa

***

**«
***

Cryptochironomus





XX
Cricotopus/OrthocaldiusOrtho

• *




Dicrotendipes modestus

***

**
#**
XX
Dicrotendipes neomodestus

• **


***
XX
Polypedilum

**



XXX
Procaldius bellus


**



Procaldius


**


XX
Tanytarsus spp.

***



XX
Ephemeroptera
Caenis



**


Odonata
Coenargi



",X


Enallagma



**


Tabanidae
Tabanidae




t "

Trichoptera
Oecetis




***

Orthotrichia




..

Trichoptera larave unid.




**•

ARACHNIDA
Fish (unidentified species)
| ****
I
observed

r -

Hudson River Database Release 4.1
2 of 2
MCA/TetraTech
-------
Table A-2 Hudson River Fish Stomach Contents
Fish


Collection


Cray Chironom Amphi



Dragonfly Caddisfly Damsel Fly
pecies
Length
Weight
Date Location
Sex
Fish
fish
id
pods
Isopods
Snails
Clams
Nymph
Nymph
Nymph

275
345
5/14/97 Hudson above feeder dam
F
0
0
1
5
17
0
1
0
0
0

311
460
5/14/97 Hudson above feeder dam
F
0
0
0
4
24
2
0
0
0
0

282
300
5/14/97 Hudson above feeder dam
F
0
0
0
0
12
0
0
0
0
0

323
555
5/14/97 Hudson above feeder dam
F
0
0
3
0
8
0
5
1
0
0

306
460
5/14/97 Hudson above feeder dam
M
0
0
0
22
16
0
0
0
0
0

310
435
5/14/97 Hudson above feeder dam
M
0
0
5
0
24
0
3
0
0
0

337
560
5/14/97 Hudson above feeder dam
M
0
0
0
7
0
2
1
0
2
0

340
610
5/14/97 Hudson above feeder dam
M
0
0
10
24
14
1
0
0
0
0

340
640
5/14/97 Hudson above feeder darn
M
0
0
0
29
13
0
0
0
0
0

311
420
5/14/97 Hudson above feeder dam
M
0
0
0
0
21
0
0
0
0
0

325
565
5/14/97 Hudson above feeder dam
M
0
0
1
8
54
0
0
0
0
0

297
390
5/14/97 Hudson above feeder dam
M
0
0
3
3
9
0
0
0
1
0

330
560
5/14/97 Hudson above feeder dam
F
0
0
12
2
23
2
0
0
0
0

349
415
5/14/97 Hudson above feeder dam
M
0
0
0
0
0
0
0
0
0
0

257
260
5/14/97 Hudson above feeder dam
F
0
0
0
0
16
0
0
0
0
0

285
350
5/14/97 Hudson above feeder dam
F
0
4
35
1
0
0
0
0
0
0

298
335
5/14/97 Hudson above feeder dam
F
0
0
0
0
16
0
0
0
0
0

289
320
5/12/97 Hudson Stillwater
M
0
0
2
30
0
15
0
3
0
0

305
405
5/12/97 Hudson Stillwater
F
0
0
44
1
0
0
0
0
0
0

329
520
5/12/97 Hudson Stillwater
M
0
0
6
5
0
10
43
3
0
0

345
690
5/12/97 Hudson Stillwater
F
0
0
1
0
0
0
0
0
0
0

285
325
5/12/97 Hudson Stillwater
M
0
0
0
0
0
0
0
0
0
0

346
640
5/12/97 Hudson Stillwater
M
0
0
0
0
0
0
0
0
0
0

271
280
5/12/97 Hudson Stillwater
F
0
0
52
0
0
26
4
0
0
0

334
675
5/12/97 Hudson Stillwater
F
0
0
0
7
15
15
46
0
0
14

290
410
5/12/97 Hudson Stillwater
F
0
0
16
1
17
0
0
1
0
. 0

302
470
5/12/97 Hudson Stillwater
F
0
0
0
0
0
0
13
0
0
0

345
650
5/12/97 Hudson Stillwater
M
0
0
0
1
1
0
0
0
0
0

310
460
5/12/97 Hudson Stillwater
U
0
0
2
1
1
8
0
1
0
0

338
485
5/12/97 Hudson Stillwater
F
0
0
3
0
0
9
6
0
0
0

355
765
5/12/97 Hudson Stillwater
F
0
0
1
2
1
1
0
0
0
5

280
330
5/12/97 Hudson Stillwater
F
0
0
15
5
9
18
17
0
0
0
Hudson River Database Release 4.1
1 of 20
MCA/TetraTech
-------
Table A-2 Hudson River Fish Stomach Contents
Fish


Collection


Mosquito
Caddisfly
Horse Fly
Adult


Oligochaete

Species
Length
Weight
Date
Location
Sex
Larvae
Larvae
Nymph
Insect
Pupa
Diatoms Setae

Daphnldae
BB
275
345
5/14/97
Hudson above feeder dam
F
0
0
0
0
0
yes
yes

0
BB
311
460
5/14/97
Hudson above feeder dam
F
0
0
0
0
0
yes

0
0
BB
282
300
5/14/97
Hudson above feeder dam
F
0
0
0
0
0

0 yes

0
BB
323
555
5/14/97
Hudson above feeder dam
F
0
0
0
0
0
yes
yes

0
BB
306
460
5/14/97
Hudson above feeder dam
M
0
0
0
0
0

0
0
0
BB
310
435
5/14/97
Hudson above feeder dam
M
0
0
0
0
0
yes

0
0
BB
337
560
5/14/97
Hudson above feeder dam
M
0
0
0
0
0

0 yes

0
BB
340
610
5/14/97
Hudson above feeder dam
M
0
1
0
0
0

0 yes

0
BB
340
640
5/14/97
Hudson above feeder dam
M
0
0
0
0
0
yes
yes

0
BB
311
420
5/14/97
Hudson above feeder dam
M
0
0
0
0
0

0
0
0
BB
325
565
5/14/97
Hudson above feeder dam
M
0
0
0
0
0
yes
yes

0
BB
297
390
5/14/97
Hudson above feeder dam
M
0
0
0
0
0

0 yes

0
BB
330
560
5/14/97
Hudson above feeder dam
F
0
0
0
0
0
yes
yes

0
BB
349
415
5/14/97
Hudson above feeder dam
M
0
0
0
0
0

0
0
0
BB
257
260
5/14/97
Hudson above feeder dam
F
0
0
0
0
0

0 yes

0
BB
285
350
5/14/97
Hudson above feeder dam
F
0
0
0
0
0
yes
yes

0
BB
298
335
5/14/97
Hudson above feeder dam
F
0
0
0
0
0

0
0
0
BB
289
320
5/12/97
Hudson Stillwater
M
0
0
0
0
0
yes

0
0
BB
305
405
5/12/97
Hudson Stillwater
F
0
0
0
0
0
yes

0
0
BB
329
520
5/12/97
Hudson Stillwater
M
0
0
0
0
0
yes
yes

0
BB
345
690
5/12/97
Hudson Stillwater
F
0
0
0
0
0
yes

0
0
BB
285
325
5/12/97
Hudson Stillwater
M
0
0
0
0
0

0
0
0
BB
346
640
5/12/97
Hudson Stillwater
M
0
0
0
0
0
yes

0
0
BB
271
280
5/12/97
Hudson Stillwater
F
0
0
0
0
0

0
0
0
BB
334
675
5/12/97
Hudson Stillwater
F
0
0
0
0
0
yes
yes

0
BB
290
410
5/12/97
Hudson Stillwater
F
0
0
0
0
0
yes

0
0
BB
302
470
5/12/97
Hudson Stillwater
F
0
0
0
0
0
yes
yes

0
BB
345
650
5/12/97
Hudson Stillwater
M
0
0
0
0
0
yes
yes

0
BB
310
460
5/12/97
Hudson Stillwater
U
0
0
0
0
0
yes

0
0
BB
338
485
5/12/97
Hudson Stillwater
F
0
0
0
0
0

0
0
0
BB
355
765
5/12/97
Hudson Stillwater
F
0
0
0
0
0
yes
yes

0
BB
280
330
5/12/97
Hudson Stillwater
F
0
0
0
0
0
yes
yes

0
Hudson River Database Release 4.1
2 of 20
MCA/TetraTech
-------
Table A-2 Hudson River Fish Stomach Contents
Fish


Collection



Cray Chironom Amphi



Dragonfly Caddisfly Damsel Fly
pecies
Length
Weight
Date
Location
Sex
Fish
fish
id
pods
Isopods
Snails
Clams
Nymph
Nymph
Nymph

264
275
5/12/97
Hudson Stillwater
F
0
0
15
6
11
0
0
3
0
1

352
725
5/12/97
Hudson Stillwater
M
0
0
3
10
10
0
1
0
0
0

321
550
5/12/97
Hudson Stillwater
F
0
0
32
0
0
0
0
0
0
0

292
355
5/12/97
Hudson Stillwater
F
0
0
0
40
9
24
5
0
0
0

288
335
5/12/97
Hudson Stillwater
M
0
0
7
2
6
0
0
0
0
0

324
470
5/13/97
Hudson @ Griffin Island
M
0
0
4
0
5
0
0
0
0
0

336
490
5/13/97
Hudson ® Griffin Island
M
0
0
0
0
0
0
0
0
0
0

258
270
5/13/97
Hudson @ Griffin Island
F
0
0
2
0
12
0
1
0
0
0

231
170
5/13/97
Hudson @ Griffin Island
M
0
0
4
0
0
0
0
0
0
0

235
205
5/13/97
Hudson @ Griffin Island
M
0
0
10
0
6
0
0
0
0
0

280
320
5/13/97
Hudson @ Griffin Island
F
0
0
5
1
6
0
0
0
0
0

296
450
5/13/97
Hudson <9 Griffin Island
F
0
0
2
0
15
0
3
0
0
0

269
330
5/13/97
Hudson @ Griffin Island
F
0
0
24
0
15
0
0
4
0
0

269
290
5/13/97
Hudson @ Griffin Island
M
0
0
6
0
7
0
0
1
0
0

253
260
5/13/97
Hudson @ Griffin Island
M
0
0
5
2
5
0
0
2
0
0

297
410
5/13/97
Hudson @ Griffin Island
F
0
0
3
2
1
0
0
2
0
0

330
665
5/13/97
Hudson @ Griffin Island
F
0
0
6
0
15
1
0
1
0
0

264
310
5/13/97
Hudson @ Griffin Island
M
0
0
5
0
1
0
12
0
0
0

251
240
5/13/97
Hudson @ Griffin Island
F
0
0
3
0
6
1
10
0
0
0

227
175
5/13/97
Hudson @ Griffin Island
M
0
0
2
2
0
0
0
0
0
0

240
195
5/13/97
Hudson @ Griffin Island
M
0
0
4
1
1
0
1
0
0
0

205
120
5/13/97
Hudson @ Griffin Island
M
0
0
10
2
0
0
0
0
0
0

230
165
5/13/97
Hudson @ Griffin Island
M
0
0
14
0
1
2
6
0
0
0

206
110
5/13/97
Hudson @ Griffin Island
M
0
0
4
1
0
0
0
0
0
0

200
100
5/13/97
Hudson @ Griffin Island
M
0
0
0
0
0
0
0
0
0
0
3 Totals





0
0
382
227
443
137
178
22
3
20
Hudson River Database Release 4.1
3 of 20
MCA/TetraTech
-------
Table A-2 Hudson River Fish Stomach Contents
Fish
Species
Length
Weight
Collection
Date

Location
Sex
Mosquito
Larvae
Caddisfly
Larvae
Horse Fly
Nymph
Adult
Insect
Pupa
Oligochaete
Diatoms Setae
Daphnidae
BB
264
275
5/12/97
Hudson
Stillwater
F
0
0
0
0
0
yes
yes

0
BB
352
725
5/12/97
Hudson
Stillwater
M
0
0
0
0
0
yes
yes

0
BB
321
550
5/12/97
Hudson
Stillwater
F
0
0
0
0
0
yes
yes

0
BB
292
355
5/12/97
Hudson
Stillwater
F
0
0
0
0
0
yes
yes

0
BB
288
335
5/12/97
Hudson
Stillwater
M
0
0
0
0
0
yes
yes

0
BB
324
470
5/13/97
Hudson
@ Griffin Island
M
0
0
0
0
0
yes

0
0
BB
336
490
5/13/97
Hudson
@ Griffin Island
M
0
0
0
0
0

0
0
0
BB
258
270
5/13/97
Hudson
@ Griffin Island
F
0
0
0
0
0
yes
yes

0
BB
231
170
5/13/97
Hudson
@ Griffin Island
M
0
0
0
0
0

0
0
0
BB
235
205
5/13/97
Hudson
@ Griffin Island
M
0
0
0
0
0

0 yes

0
BB
280
320
5/13/97
Hudson
@ Griffin Island
F
0
1
0
0
0
yes
yes

0
BB
296
450
5/13/97
Hudson
@ Griffin Island
F
1
0
1
0
0

0
0
0
BB
269
330
5/13/97
Hudson
@ Griffin Island
F
0
0
0
0
0
yes
yes

0
BB
269
290
5/13/97
Hudson
@ Griffin Island
M
0
0
0
0
0
yes
yes

0
BB
253
260
5/13/97
Hudson
@ Griffin Island
M
0
0
0
0
0
yes
yes

0
BB
297
410
5/13/97
Hudson
@ Griffin Island
F
0
0
0
0
0
yes
yes

0
BB
330
665
5/13/97
Hudson
@ Griffin Island
F
0
0
0
0
0

0
0
0
BB
264
310
5/13/97
Hudson
@ Griffin Island
M
1
0
2
0
0
yes

0
0
BB
251
240
5/13/97
Hudson
@ Griffin Island
F
0
0
0
0
0
yes

0
0
BB
227
175
5/13/97
Hudson
@ Griffin Island
M
0
0
0
0
0
yes
yes

0
BB
240
195
5/13/97
Hudson
@ Griffin Island
M
0
0
0
0
0
yes

0
0
BB
205
120
5/13/97
Hudson
@ Griffin Island
M
0
0
0
0
3
yes
yes

0
BB
230
165
5/13/97
Hudson
@ Griffin Island
M
0
0
0
0
0
yes
yes

0
BB
206
110
5/13/97
Hudson
@ Griffin Island
M
0
0
0
0
0
yes


0
BB
200
100
5/13/97
Hudson
@ Griffin Island
M
0
0
0
0
0

0
0
0
BB Totals






2
2
3
0
3

34
34
0
Hudson River Database Release 4.1
4 of 20
MCA/TetraTech
-------
Table A-2 Hudson River Fish Stomach Contents
Fish


Collection




Cray Chironom Amphi



Dragonfly Caddisfly Damsel Fly
pecies
Length
Weight
Date

Location
Sex
Fish
fish
id
pods
Isopods
Snails
Clams
Nymph
Nymph Nymph
-IB
472
1860
5/22/97
Catskill Creek
F
0
0
0
0
0
0
0
0
0 0
/IB
411
1070
5/22/97
Catskill Creek
M
0
i
0
0
0
0
0
0
0 0
AB
409
1130
5/22/97
Catskill Creek
M
1
0
0
0
0
0
0
0
0 0
m
347
630
5/22/97
Catskill Creek
M
0
0
0
0
0
0
0
0
0 0
m
389
920
5/22/97
Catskill Creek
F
0
0
0
0
0
0
0
0
0 0
m
364
860
5/22/97
Catskill Creek
M
1
1
0
0
0
0
0
0
0 0
1B
370
660
5/22/97
Catskill Creek
M
0
1
0
0
0
0
0
0
0 0
1B
361
890
5/22/97
Catskill Creek
F
4
1
0
0
0
0
0
0
0 0
1B
339
580
5/22/97
Catskill Creek
F
0
0
0
0
0
0
0
0
0 0
IB
352
730
5/22/97
Catskill Creek
F
0
1
0
0
0
0
0
0
0 0
1B
416
1290
5/22/97
Catskill Creek
F
1
0
0
0
0
0
0
0
0 0
1B
353
700
5/22/97
Catskill Creek
M
1
0
0
0
0
0
0
0
0 0
4B
336
460
5/22/97
Catskill Creek
F
1
0
0
0
0
0
0
0
0 0
IB
333
540
5/22/97
Catskill Creek
M
0
0
0
0
0
0
0
0
0 0
IB
307
420
5/22/97
Catskill Creek
F
0
0
0
0
0
0
0
0
0 0
1B
360
570
5/22/97
Catskill Creek
F
0
0
0
0
0
0
0
0
0 0
1B
462
1740
5/22/97
Catskill Creek
F
0
0
0
0
0
0
0
0
0 0
IB
345
680
5/22/97
Catskill Creek
F
1
0
0
0
0
0
0
0
0 0
IB
419
1170
5/22/97
Catskill Creek
F
0
1
0
0
0
0
0
0
0 0
1B
342
700
5/22/97
Catskill Creek
F
1
0
0
0
0
0
0
0
0 0
1B
396
1040
5/28/97
Hudson
@ Troy
F
1
0
0
0
0
0
0
0
0 0
18
404
1030
5/28/97
Hudson
@ Troy
M
1
0
0
0
0
0
0
0
0 0
IB
345
530
5/28/97
Hudson
@ Troy
M
0
0
0
0
0
0
0
0
0 0
1B
314
470
5/28/97
Hudson
@ Troy
M
1
0
0
0
0
0
0
0
0 0
1B
398
750
6/12/97
Hudson
@ Troy
F
0
0
0
0
0
0
0
0
0 0
1B
435
1280
6/12/97
Hudson
® Troy
F
1
0
0
0
0
0
0
0
0 0
IB
295
410
6/12/97
Hudson
8 Troy
F
1
0
0
0
0
0
0
0
0 0
IB
317
480
6/12/97
Hudson
@ Troy
M
1
0
0
0
0
0
0
0
0 0
IB
364
640
6/12/97
Hudson
@ Troy
M
0
0
0
0
0
0
0
0
0 0
IB
315
440
6/12/97
Hudson
@ Troy
F
0
0
0
0
0
0
0
0
0 0
IB
429
1230
6/12/97
Hudson
@ Troy
F
0
0
0
0
0
0
0
0
0 0
IB
419
930
5/12/97
Hudson Stillwater
F
1
0
0
0
0
0
0
0
0 0
Hudson River Database Release 4,1
5 of 20
MCA/TetraTech
-------
Table A-2 Hudson River Fish Stomach Contents
Fish


Collection

Mosquito
Caddisfly
Horse Fly
Adult


Oligochaete

Species
Length
Weight
Date Location
Sex
Larvae
Larvae
Nymph
Insect
Pupa
Diatoms
Setae
Daphnidae
LMB
472
1860
5/22/97 Catskill Creek
F
0
0
0
0
0
0
0
0
LMB
411
1070
5/22/97 Catskill Creek
M
0
0
0
0
0
0
0
0
LMB
409
1130
5/22/97 Catskill Creek
M
0
0
0
0
0
0
0
0
LMB
347
630
5/22/97 Catskill Creek
M
0
0
0
0
0
0
0
0
LMB
389
920
5/22/97 Catskill Creek
F
0
0
0
0
0
0
0
0
LMB
364
860
5/22/97 Catskill Creek
M
0
0
0
0
0
0
0
0
LMB
370
660
5/22/97 Catskill Creek
M
0
0
0
0
0
0
0
0
LMB
361
890
5/22/97 Catskill Creek
F
0
0
0
0
0
0
0
0
LMB
339
580
5/22/97 Catskill Creek
F
0
0
0
0
0
0
0
0
LMB
352
730
5/22/97 Catskill Creek
F
0
0
0
0
0
0
0
0
LMB
416
1290
5/22/97 Catskill Creek
F
0
0
0
0
0
0
0
0
LMB
353
700
5/22/97 Catskill Creek
M
0
0
0
0
0
0
0
0
LMB
336
460
5/22/97 Catskill Creek
F
0
0
0
0
0
0
0
0
LMB
333
540
5/22/97 Catskill Creek
M
0
0
0
0
0
0
0
0
LMB
307
420
5/22/97 Catskill Creek
F
0
0
0
0
0
0
0
0
LMB
360
570
5/22/97 Catskill Creek
F
0
0
0
0
0
0
0
0
LMB
462
1740
5/22/97 Catskill Creek
F
0
0
0
0
0
0
0
0
LMB
345
680
5/22/97 Catskill Creek
F
0
0
0
0
0
0
0
0
LMB
419
1170
5/22/97 Catskill Creek
F
0
0
0
0
0
0
0
0
LMB
342
700
5/22/97 Catskill Creek
F
0
0
0
0
0
0
0
0
LMB
396
1040
5/28/97 Hudson @ Troy
F
0
0
0
0
0
0
0
0
LMB
404
1030
5/28/97 Hudson @ Troy
M
0
0
0
0
0
0
0
0
LMB
345
530
5/28/97 Hudson @ Troy
M
0
0
0
0
0
0
0
0
LMB
314
470
5/28/97 Hudson @ Troy
M
0
0
0
0
0
0
0
0
LMB
398
750
6/12/97 Hudson @ Troy
F
0
0
0
0
0
0
0
0
LMB
435
1280
6/12/97 Hudson @ Troy
F
0
0
0
0
0
0
0
0
LMB
295
410
6/12/97 Hudson @ Troy
F
0
0
0
0
0
0
0
0
LMB
317
480
6/12/97 Hudson @ Troy
M
0
0
0
0
0
0
0
0
LMB
364
640
6/12/97 Hudson @ Troy
M
0
0
0
0
0
0
0
0
LMB
315
440
6/12/97 Hudson @ Troy
F
0
0
0
0
0
0
0
0
LMB
429
1230
6/12/97 Hudson @ Troy
F
0
0
0
0
0
0
0
0
LMB
419
930
5/12/97 Hudson Stillwater
F
0
0
0
0
0
0
0
0
Hudson River Database Release 4.1
6 of 20
MCA/TetraTech
-------
Table A-2 Hudson River Fish Stomach Contents
Fish


Collection



Cray Chironom Amphi



Dragonfly Caddisfly Damsel Fly
pecies
Length
Weight
Date
Location
Sex
Fish
fish
id
pods
Isopods
Snails
Clams
Nymph
Nymph Nymph
1B
425
920
5/12797
Hudson Stillwater
F
0
0
0
0
0
0
0
0
0 0
IB
402
850
5/12/97
Hudson Stillwater
F
0
0
0
0
0
0
0
0
0 0
IB
402
910
5/12/97
Hudson Stillwater
M
0
0
0
0
0
0
0
0
0 0
IB
394
940
5/12/97
Hudson Stillwater
F
1
0
0
0
0
0
0
0
0 0
1B
367
740
5/12/97
Hudson Stillwater
F
1
0
0
0
0
0
0
0
0 0
1B
358
680
5/12/97
Hudson Stillwater
F
1
0
0
0
0
0
0
1
0 0
1B
386
950
5/12/97
Hudson Stillwater
F
1
0
0
0
0
0
0
0
0 0
IB
385
960
5/12/97
Hudson Stillwater
F
0
0
0
0
0
0
0
0
0 0
IB
529
2300
5/12/97
Hudson River
F
1
0
0
0
0
0
0
0
0 0
1B
481
1990
5/12/97
Hudson River
F
2
0
0
0
0
0
0
0
0 0
1B
413
1010
5/12/97
Hudson River
F
0
0
0
0
0
0
0
0
0 0
1B
250
185
5/12/97
Hudson Stillwater
F
0
0
0
0
0
0
0
0
0 0
1B
289
350
5/12/97
Hudson Stillwater
F
1
0
0
0
0
0
0
0
0 0
1B
295
415
5/12/97
Hudson Stillwater
F
0
1
0
0
0
0
0
0
0 0
1B
325
545
5/12/97
Hudson Stillwater
F
1
0
0
0
0
0
0
0
0 0
1B
318
480
5/12/97
Hudson Stillwater
M
0
0
0
0
0
0
0
0
0 0
1B
288
395
5/12/97
Hudson Stillwater
M
0
0
0
0
0
0
0
0
0 0
1B
252
225
5/12/97
Hudson Stillwater
F
0
0
0
0
0
0
0
0
0 0
1B
235
180
5/12/97
Hudson Stillwater
F
0
0
0
0
0
0
0
0
0 0
1B
409
1030
5/12/97
Hudson @ Griffin Island
M
1
1
0
0
0
0
0
0
0 0
1B
433
1400
5/13/97
Hudson @ Griffin Island
F
1
0
0
0
0
0
0
0
0 0
IB
447
1560
5/13/97
Hudson @ Griffin Island
M
1
0
0
0
0
0
0
0
0 0
/IB
388
860
5/13/97
Hudson @ Griffin Island
M
0
0
0
0
0
0
0
0
0 0
IB
296
350
5/13/97
Hudson @ Griffin Island
M
0
0
0
0
0
0
0
0
0 0
1B
300
435
5/13/97
Hudson @ Griffin Island
M
1
0
0
0
0
0
0
0
0 0
1B
273
335
5/13/97
Hudson @ Griffin Island
F
1
0
0
0
0
0
0
0
0 0
1B
260
255
5/13/97
Hudson @ Griffin Island
F
0
0
0
0
0
0
0
0
0 0
1B
303
460
5/13/97
Hudson @ Griffin Island
M
1
1
0
0
0
0
0
0
0 0
1B
266
250
5/13/97
Hudson @ Griffin Island
F
1
0
0
0
0
0
0
0
0 0
1B
270
260
5/13/97
Hudson @ Griffin Island
M
1
0
0
0
0
0
0
0
0 0
1B
235
165
5/13/97
Hudson @ Griffin Island
M
0
0
0
0
0
0
0
0
0 0
IB
232
180
5/13/97
Hudson @ Griffin Island
M
0
0
0
0
0
0
0
0
0 0
Hudson River Database Release 4.1
7 of 20
MCA/TetraTech
-------
Table A-2 Hudson River Fish Stomach Contents
Fish


Collection


Mosquito
Caddisfly
Horse Fly
Adult


Oligochaete

Species
Length
Weight
Date
Location
Sex
Larvae
Larvae
Nymph
Insect
Pupa
Diatoms
Setae
Daphnidae
.MB
425
920
5/12/97
Hudson slillwater
F
0
0
0
0
0
0
0
0
.MB
402
850
5/12/97
Hudson Stillwater
F
0
0
0
0
0
0
0
0
.MB
402
910
5/12/97
Hudson Stillwater
M
0
0
0
0
0
0
0
0
.MB
394
940
5/12/97
Hudson Stillwater
F
0
0
0
0
0
0
0
0
.MB
367
740
5/12/97
Hudson Stillwater
F
0
0
0
0
0
0
0
0
_MB
358
680
5/12/97
Hudson Stillwater
F
0
0
0
0
0
0
0
0
.MB
386
950
5/12/97
Hudson Stillwater
F
0
0
0
0
0
0
0
0
.MB
385
960
5/12/97
Hudson Stillwater
F
0
0
0
0
0
0
0
0
.MB
529
2300
5/12/97
Hudson River
F
0
0
0
0
0
0
0
0
.MB
481
1990
5/12/97
Hudson River
F
0
0
0

0
0
0
0
.MB
413
1010
5/12/97
Hudson River
F
0
0
0
0
0
0
0
0
.MB
250
185
5/12/97
Hudson Stillwater
F
0
0
0
0
0
0
0
0
.MB
289
350
5/12/97
Hudson Stillwater
F
0
0
0
0
0
0
0
0
.MB
295
415
5/12/97
Hudson Stillwater
F
0
0
0
0
0
0
0
0
.MB
325
545
5/12/97
Hudson Stillwater
F
0
0
0
0
0
0
0
0
.MB
318
480
5/12/97
Hudson Stillwater
M
0
0
0
0
0
0
0
0
.MB
288
395
5/12/97
Hudson Stillwater
M
0
0
0
1
0
0
0
0
.MB
252
225
5/12/97
Hudson Stillwater
F
0
0
0
0
0
0
0
0
.MB
235
180
5/12/97
Hudson Stillwater
F
0
0
0
2
0
0
0
0
.MB
409
1030
5/12/97
Hudson @ Griffin Island
M
0
0
0
0
0
0
0
0
.MB
433
1400
5/13/97
Hudson @ Griffin Island
F
0
0
0
0
0
0
0
0
.MB
447
1560
5/13/97
Hudson @ Griffin Island
M
0
0
0
0
0
0
0
0
_MB
388
860
5/13/97
Hudson @ Griffin Island
M
0
0
0
0
0
0
0
0
.MB
296
350
5/13/97
Hudson @ Griffin Island
M
0
0
0
0
0
0
0
0
.MB
300
435
5/13/97
Hudson @ Griffin Island
M
0
0
0
0
0
0
0
0
.MB
273
335
5/13/97
Hudson @ Griffin Island
F
0
0
0
0
0
0
0
0
.MB
260
255
5/13/97
Hudson @ Griffin Island
F
0
0
0
0
0
0
0
0
.MB
303
460
5/13/97
Hudson @ Griffin Island
M
0
0
0
0
0
0
0
0
_MB
266
250
5/13/97
Hudson @ Griffin Island
F
0
0
0
0
0
0
0
0
.MB
270
260
5/13/97
Hudson @ Griffin Island
M
0
0
0
0
0
0
0
0
.MB
235
165
5/13/97
Hudson @ Griffin Island
M
0
0
0
0
0
0
0
0
-MB
232
180
5/13/97
Hudson @ Griffin Island
M
0
0
0
0
0
0
0
0
¦ludson River Database Release 4.1
8 of 20
MCA/TetraTech
-------
Table A-2 Hudson River Fish Stomach Contents
Fish


Collection



Cray Chironom Amphi



Dragonfly Caddisfly Damsel Fly
>ecies
Length
Weight
Date
Location
Sex
Fish
fish
id
pods
Isopods
Snails
Clams
Nymph
Nymph
Nymph
B
265
260
5/13/97 Hudson
@ Griffin Island
M
0
0
0
0
0
0
0
12
0
0
B
242
170
5/13/97 Hudson
@ Griffin Island
M
0
0
0
0
0
0
0
0
0
0
B
231
165
5/13/97 Hudson
@ Griffin Island
M
0
0
0
10
26
0
0
0
0
0
B
192
90
5/13/97 Hudson
@ Griffin Island
M
0
0
0
0
0
0
0
0
0
0
B
191
90
5/13/97 Hudson
@ Griffin Island
M
0
0
0
2
2
0
0
1
0
0
B
172
60
5/13/97 Hudson
@ Griffin Island
M
0
0
0
0
0
0
0
0
0
0
B
185
75
5/13/97 Hudson
@ Griffin Island
M
0
0
0
0
0
0
0
0
0
6
B
182
80
5/13/97 Hudson
@ Griffin Island
M
0
0
0
1
19
0
6
0
0
0
B
280
315
5/14/97 Hudson above feeder dam
M
0
0
0
0
0
0
0
0
0
0
B
289
375
5/14/97 Hudson
<9 Troy
M
0
0
0
0
0
0
0
0
0
0
B Totals





24
3
0
13
47
0
6
14
0
6
ludson River Database Release 4.1
9 of 20
MCA/TetraTech
-------
Table A-2 Hudson River Fish Stomach Contents
Fish


Collection



Mosquito
Caddisfly
Horse Fly
Adult


Oligochaete

Species
Length
Weight
Date

Location
Sex
Larvae
Larvae
Nymph
Insect
Pupa
Diatoms
Setae
Daphnidae
LMB
265
260
5/13/97
Hudson
@ Griffin Island
M
0
0
0
0
0
0
0
0
LMB
242
170
5/13/97
Hudson
@ Griffin Island
M
0
0
0
0
0
0
0
0
LMB
231
165
5/13/97
Hudson
@ Griffin Island
M
0
0
0
0
0
0
0
0
LMB
192
90
5/13/97
Hudson
@ Griffin Island
M
0
0
0
0
0
0
0
0
LMB
191
90
5/13/97
Hudson
@ Griffin Island
M
0
0
0
0
0
0
0
0
LMB
172
60
5/13/97
Hudson
@ Griffin Island
M
0
0
0
0
0
0
0
0
LMB
185
75
5/13/97
Hudson
@ Griffin Island
M
0
0
0
0
0
0
0
0
LMB
182
80
5/13/97
Hudson
@ Griffin Island
M
0
0
0
0
0
0
0
0
LMB
280
315
5/14/97
Hudson above feeder dam
M
0
0
0
0
0
0
0
0
LMB
289
375
5/14/97
Hudson
@ Troy
M
0
0
0
0
0
0
0
0
LMB Totals






0
0
0
3
0
0
0
0
Hudson River Database Release 4.1
10 of 20
MCA/TetraTech
-------
Table A-2 Hudson River Fish Stomach Contents
Fish


Collection



Cray Chironom Amphi



Dragonfly Caddisfly Damsel Fly
secies
Length
Weight
Date
Location
Sex
Fish
fish
id
pods
Isopods
Snails
Clams
Nymph
Nymph Nymph
D
178
80
5/22/97 CatskiII Creek
F
0
0
0
0
0
0
0
0
0 0
D
174
70
5/22/97 Catskill Creek
F
0
0
10
0
0
0
0
0
0 0
D
177
75
5/22/97 Catskill Creek
F
0
0
8
0
0
0
0
0
0 0
D
176
65
5/22/97 Catskill Creek
F
0
0
3
0
0
0
0
0
0 0
D
167
70
5/22/97 Catskill Creek
F
0
0
11
3
0
0
0
0
0 0

166
60
5/22/97 Catskill Creek
M
0
0
1
7
0
0
0
0
0 0

159
55
5/22/97 Catskill Creek
F
0
0
4
0
0
0
0
0
0 0

182
80
5/22/97 Catskill Creek
F
0
0
9
0
0
0
0
0
0 0

167
65
5/22/97 Catskill Creek
F
0
0
6
1
0
0
0
0
0 0

211
135
5/22/97 Catskill Creek
F
0
0
1
2
0
0
0
0
0 0

182
80
5/22/97 Catskill Creek
F
0
0
20
0
0
0
0
0
0 0

167
65
5/22/97 Catskill Creek
F
0
0
35
1
0
0
0
0
0 0

177
70
5/22/97 Catskill Creek
F
0
0
29
0
0
0
0
0
0 0

160
55
5/22/97 Catskill Creek
F
0
0
2
0
0
0
0
0
0 0

171
60
5/22/97 Catskill Creek
F
0
0
15
1
0
0
0
0
0 0

160
50
5/22/97 Catskill Creek
F
0
0
24
0
0
0
0
0
0 0

156
45
5/22/97 Catskill Creek
M
0
0
12
1
0
0
0
0
0 0

160
50
5/22/97 Catskill Creek
M
0
0
0
0
0
0
0
0
0 0

152
50
5/22/97 Catskill Creek
F
0
0
10
4
0
0
0
0
0 0

146
40
5/22/97 Catskill Creek
F
0
0
17
1
0
0
0
0
0 0

196
105
5/28/97 Hudson
@ Troy
F
0
0
2
0
0
0
0
0
0 0

220
170
5/28/97 Hudson
@ Troy
F
0
0
0
0
0
0
0
0
0 0

204
110
5/28/97 Hudson
@ Troy
F
0
0
0
0
0
0
0
0
0 0

206
130
5/28/97 Hudson
@ Troy
F
0
0
2
0
0
0
0
0
0 0

185
85
5/28/97 Hudson
@ Troy
F
0
0
10
1
0
0
0
0
0 0

163
60
5/28/97 Hudson
@ Troy
M
0
0
5
1
0
0
0
0
0 0

183
90
5/28/97 Hudson
@ Troy
F
0
0
7
0
0
0
0
0
0 0

176
75
5/28/97 Hudson
@ Troy
M
0
0
3
0
0
0
0
0
0 0

174
70
5/28/97 Hudson
@ Troy
F
0
0
6
0
0
0
0
0
0 0

163
65
5/28/97 Hudson
@ Troy
M
0
0
0
0
0
0
0
0
0 0

181
75
5/28/97 Hudson
@ Troy
M
0
0
0
0
0
0
0
0
0 0

170
65
5/28/97 Hudson
8> Troy
M
0
0
4
1
0
0
0
0
0 0
Hudson River Database Release 4.1
11 of 20
MCA/TetraTech
-------
Table A-2 Hudson River Fish Stomach Contents
Fish


Collection



Mosquito
Caddisfly
Horse Fly
Adult


Oligochaete

Species
Length
Weight
Date

Location
Sex
Larvae
Larvae
Nymph
Insect
Pupa Diatoms
Setae
Daphnldae
WP
178
80
5/22/97
Catskill Creek
F
0
1
0
0
0
0
0
0
WP
174
70
5/22/97
Catskill Creek
F
0
0
0
0
0
0
0
0
WP
177
75
5/22/97
Catskill Creek
F
0
0
0
0
0
0
0
0
WP
176
65
5/22/97
Catskill Creek
F
0
0
0
0
0
0
0
0
WP
167
70
5/22/97
Catskill Creek
F
0
0
0
0
0
0
0
0
WP
166
60
5/22/97
Catskill Creek
M
0
0
0
0
0
0
0
0
WP
159
55
5/22/97
Catskill Creek
F
0
0
0
1
0
0
0
0
WP
182
80
5/22/97
Catskill Creek
F
0
0
0
0
0
0
0
0
WP
167
65
5/22/97
Catskill Creek
F
0
0
0
0
0
0
0
0
WP
211
135
5/22/97
Catskill Creek
F
0
0
0
0
2
0
0
0
WP
182
80
5/22/97
Catskill Creek
F
0
0
0
0
0
0
0
0
WP
167
65
5/22/97
Catskill Creek

0
0
0
0
0
0
0
0
WP
177
70
5/22/97
Catskill Creek
F
0
0
0
0
0
0
0
0
WP
160
55
5/22/97
Catskill Creek
F
0
0
0
0
0
0
0
0
WP
171
60
5/22/97
Catskill Creek

0
0
0
0
0
0
0
0
WP
160
50
5/22/97
Catskill Creek
F
0
0
0
0
0
0
0
0
WP
156
45
5/22/97
Catskill Creek

0
0
0
0
0
0
0
0
WP
160
50
5/22/97
Catskill Creek

0
0
0
0
0
0
0
0
WP
152
50
5/22/97
Catskill Creek
F
0
0
0
0
0
0
0
0
WP
146
40
5/22/97
Catskill Creek
F
0
0
0
0
0
0 yes
0
WP
196
105
5/28/97
Hudson
@ Troy
F
0
0
0
0
0
0
0
0
WP
220
170
5/28/97
Hudson
@ Troy
F
0
0
0
0
0
0
0
0
WP
204
110
5/28/97
Hudson
@ Troy

0
0
0
0
0 yes

0
0
WP
206
130
5/28/97
Hudson
@ Troy
F
0
0
0
0
0
0
0
0
WP
185
85
5/28/97
Hudson
@ Troy
F
0
0
0
0
0 yes

0
0
WP
163
60
5/28/97
Hudson
@ Troy

0
0
0
0
0 yes

0
0
WP
183
90
5/28/97
Hudson
@ Troy
F
0
0
0
1
1
0
0
0
WP
176
75
5/28/97
Hudson
@ Troy

0
0
0
0
0
0
0
0
WP
174
70
5/28/97
Hudson
@ Troy
F
0
0
0
0
0 yes

0
0
WP
163
65
5/28/97
Hudson
@ Troy
M
0
0
0
0
0
0
0
0
WP
181
75
5/28/97
Hudson
@ Troy
M
0
0
0
0
0
0
0
0
WP
170
65
5/28/97
Hudson
@ Troy
M
0
0
0
0
0 yes

0
0
Hudson River Database Release 4.1
12 of 20
MCA/TetraTech
-------
Table A-2 Hudson River Fish Stomach Contents
Fish


Collection



Cray Chironom Amphi



Dragonfly Caddisfly Damsel Fly
secies
Length
Weight
Date
Location
Sex
Fish
fish
id
pods
Isopods
Snails
Clams
Nymph
Nymph
Nymph
D
157
55
5/28/97 Hudson
@ Troy
M
0
0
2
0
0
0
0
0
0
0
D
166
60
5/28/97 Hudson
@ Troy
M
0
0
1
0
0
0
0
0
0
0
3
161
60
5/28/97 Hudson
@ Troy
M
0
0
1
0
0
0
0
0
0
0
D
194
100
5/28/97 Hudson
@ Troy
M
0
0
0
0
0
0
0
0
0
0
D
160
60
5/28/97 Hudson
@ Troy
F
0
0
0
2
0
0
0
0
0
0
D
168
60
5/28/97 Hudson
@ Troy
M
0
0
0
0
0
0
0
0
0
0
D
150
45
5/28/97 Hudson
@ Troy
M
0
0
0
2
0
0
0
0
0
0
0
163
60
5/28/97 Hudson
@ Troy
M
0
0
1
0
0
0
0
0
0
0
3 Totals





0
0
261
28
0
0
0
0
0
0
Hudson River Database Release 4.1
13 of 20
MCA/TetraTech
-------
Table A-2 Hudson River Fish Stomach Contents
Fish


Collection


Mosquito
Caddisfly
Horse Fly
Adult


Oligochaete

Species
Length
Weight
Date
Location
Sex
Larvae
Larvae
Nymph
Insect
Pupa Diatoms
Setae
Daphnidae
WP
157
55
5/28/97 Hudson
@ Troy
M
0
0
0
0
0 yes

0
0
WP
166
60
5/28/97 Hudson
@ Troy
M
0
0
0
0
0
0
0
0
WP
161
60
5/28/97 Hudson
@ Troy
M
0
0
0
0
0
0
0
0
WP
194
100
5/28/97 Hudson @ Troy
M
0
0
0
0
0
0
yes
0
WP
160
60
5/28/97 Hudson
@ Troy
F
0
0
0
0
0
0
0
0
WP
168
60
5/28/97 Hudson
@ Troy
M
0
0
0
0
0
0
0
0
WP
150
45
5/28/97 Hudson
@ Troy
M
0
0
0
0
1
0
0
0
WP
163
60
5/28/97 Hudson
@ Troy
M
0
0
0
0
0
0
0
0
WP Totals





0
1
0
2
4
6
1
0
Hudson River Database Release 4.1
14 of 20
MCA/TetraTech
-------
Table A-2 Hudson River Fish Stomach Contents
Fish


Collection


Cray Chironom Amphi



Dragonfly Caddisfly Damsel Fly
pecies
Length
Weight
Date Location
Sex
Fish
fish
id
pods
Isopods
Snails
Clams
Nymph
Nymph
Nymph

292
408
5/18/98 TIP
M
0
0
0
0
1
4
52
0
0
0

195
102
5/18/98 TIP
M
0
0
0
1
0
0
0
0
0
10

267
290
5/18/98 TIP
M
0
0
0
0
0
0
0
6
0
0

154
220
5/18/98 TIP
M
0
0
3
0
0
0
0
0
0
1

290
370
5/18/98 TIP
M
0
0
0
0
0
0
2
0
0
0

280
296
5/18/98 TIP
F
0
0
0
1
0
0
23
0
0
0

318
418
5/18/98 TIP
F
0
0
0
0
0
0
0
1
0
0

18 8
241
5/18/98 TIP
M
0
0
1
0
0
0
22
0
0
0

288
366
5/18/98 TIP
M
0
0
0
0
6
1
13
0
0
0

235
184
5/18/98 TIP
M
0
0
0
0
0
0
0
0
1
0

266
281
5/18/98 TIP
M
0
0
0
3
3
0
1
2
0
0

196
102
5/18/98 TIP
M
0
0
0
0
0
2
0
0
0
14

291
362
5/18/98 TIP
M
0
0
0
0
0
0
26
0
0
0

215
136
5/18/98 TIP
F
0
0
0
0
7
0
27
0
0
1

240
188
5/18/98 TIP
M
0
0
0
0
0
0
0
0
0
0

226
150
5/14/97 Hudson above feeder dam
M
0
0
2
10
0
0
0
0
0
0

185
75
5/14/97 Hudson above feeder dam
M
0
0
2
7
25
0
0
0
0
0

193
90
5/14/97 Hudson above feeder dam
M
0
0
0
5
1
0
0
0
0
0

169
60
5/14/97 Hudson above feeder dam
M
0
0
0
1
3
0
0
0
0
0

175
75
5/14/97 Hudson above feeder dam
M
0
0
0
5
10
0
0
0
0
0

171
65
5/14/97 Hudson above feeder dam
M
0
0
5
4
1
0
0
0
0
0

169
65
5/14/97 Hudson above feeder dam
M
0
0
0
3
2
0
0
0
0
0

166
55
5/14/97 Hudson above feeder dam
M
0
0
0
0
0
0
0
0
0
0

161
55
5/14/97 Hudson above feeder darn
M
0
0
0
6
6
0
0
0
0
0

163
50
5/14/97 Hudson above feeder dam
M
0
0
2
0
12
1
0
0
0
0

169
60
5/14/97 Hudson above feeder dam
M
0
0
1
6
0
0
0
0
0
0

272
270
5/14/97 Hudson above feeder dam
M
0
0
1
6
0
0
0
1
0
0

276
275
5/14/97 Hudson above feeder dam
M
0
0
0
5
5
0
0
0
0
0

270
245
5/14/97 Hudson above feeder dam
M
0
0
0
2
5
1
0
0
0
0

266
215
5/14/97 Hudson above feeder dam
M
0
0
4
7
10
18
0
0
0
0

264
225
5/14/97 Hudson above feeder dam
M
0
0
1
4
9
0
0
1
0
0

263
200
5/14/97 Hudson above feeder dam
M
0
0
3
5
0
0
0
0
0
0
Hudson River Database Release 4.1
15 of 20
MCA/TetraTech
-------
Table A-2 Hudson River Fish Stomach Contents
Fish


Collection


Mosquito
Caddisfly
Horse Fly
Adult

Oligochaete

Species
Length
Weight
Date
Location
Sex
Larvae
Larvae
Nymph
Insect
Pupa Diatoms Setae

Daphnidae
YP
292
408
5/18/98
TIP
M
0
0
0
0
0
0
0
0
YP
195
102
5/18/98
TIP
M
0
0
0
0
0
0
0
0
YP
267
290
5/18/98
TIP
M
0
0
0
0
0 yes

0
0
YP
154
220
5/18/98
TIP
M
0
2
0
0
0
0
0
0
YP
290
370
5/18/98
TIP
M
0
0
0
0
0
0
0
0
YP
280
296
5/18/98
TIP
F
0
1
0
0
0
0 yes

0
YP
318
418
5/18/98
TIP
F
0
0
0
0
0
0
0
0
YP
188
241
5/18/98
TIP
M
1
1
0
0
0 yes

0
0
YP
288
366
5/18/98
TIP
M
0
3
0
0
0
0 yes

0
YP
235
184
5/18/98
TIP
M
0
0
0
0
0
0
0
0
YP
266
281
5/18/98
TIP
M
0
0
0
0
0
0
0
0
YP
196
102
5/18/98
TIP
M
0
0
0
0
0 yes

0
0
YP
291
362
5/18/98
TIP
M
0
0
0
0
0
0 yes

0
YP
215
136
5/18/98
TIP
F
0
0
0
0
0 yes

0
0
YP
240
188
5/18/98
TIP
M
0
6
0
0
0
0
0
0
YP
226
150
5/14/97
Hudson above feeder dam
M
0
0
0
0
0
0
0
0
YP
185
75
5/14/97
Hudson above feeder dam
M
0
0
0
0
0
0
0
0
YP
193
90
5/14/97
Hudson above feeder dam
M
0
0
0
0
0
0
0
0
YP
169
60
5/14/97
Hudson above feeder dam
M
0
0
0
0
0
0
0
0
YP
175
75
5/14/97
Hudson above feeder dam
M
0
0
0
0
0
0
0
0
YP
171
65
5/14/97
Hudson above feeder dam
M
0
0
0
0
0
0
0
0
YP
169
65
5/14/97
Hudson above feeder dam
M
0
0
0
0
0
0
0
0
YP
166
55
5/14/97
Hudson above feeder dam
M
1
0
0
0
0
0
0
0
YP
161
55
5/14/97
Hudson above feeder darn
M
0
0
0
0
0
0
0
0
YP
163
50
5/14/97
Hudson above feeder dam
M
0
0
0
0
0
0
0
0
YP
169
60
5/14/97
Hudson above feeder dam
M
150
0
0
0
0
0
0
0
YP
272
270
5/14/97
Hudson above feeder dam
M
0
0
0
0
0
0
0
0
YP
276
275
5/14/97
Hudson above feeder dam
M
0
0
0
0
0
0
0
0
YP
270
245
5/14/97
Hudson above feeder dam
M
0
0
0
0
0
0
0
0
YP
266
215
5/14/97
Hudson above feeder dam
M
0
0
0
0
0
0
0
0
YP
264
225
5/14/97
Hudson above feeder dam
M
0
0
0
0
0
0
0
0
YP
263
200
5/14/97
Hudson above feeder dam
M
0
0
0
0
0
0
0
0
Hudson River Database Release 4.1
16 of 20
MCA/TetraTech
-------
Table A-2 Hudson River Fish Stomach Contents
Fish

Collection


Cray Chironom Amphi



Dragonfly Caddisfly Damsel Fly
>ecies Length
Weight
Date Location
Sex
Fish
fish
id
pods
Isopods
Snails
Clams
Nymph
Nymph Nymph
252
210
5/14/97 Hudson above feeder dam
M
0
0
1
2
3
0
0
1
0 0
213
130
5/28/97 Hudson @ Troy
M
0
0
0
52
0
0
0
0
9 0
252
185
5/12/97 Hudson stillwaler
M
0
0
0
0
0
0
0
1
0 0
242
160
5/12/97 Hudson Stillwater
M
0
0
0
0
0
0
0
1
0 0
208
120
5/12/97 Hudson Stillwater
M
0
0
0
0
4
3
0
2
0 0
185
85
5/12/97 Hudson Stillwater
M
0
0
1
4
2
1
15
4
0 0
185
70
5/12/97 Hudson Stillwater
M
0
0
1
0
0
0
0
5
0 0
153
40
5/12/97 Hudson Stillwater
M
0
0
1
0
0
0
0
3
0 0
156
40
5/12/97 Hudson Stillwater
M
0
0
0
0
0
0
0
3
0 0
143
25
5/12/97 Hudson Stillwater
M
0
0
8
0
0
0
0
2
0 0
273
270
5/14/97 Hudson above feeder dam
M
0
0
0
2
30
0
0
0
0 0
246
210
5/14/97 Hudson above feeder dam
M
0
0
2
20
12
9
0
0
0 0
285
330
5/14/97 Hudson above feeder dam
M
0
0
0
0
0
0
0
0
0 0
268
290
5/18/98 TIP
M
0
0
0
0
2
0
35
0
0 0
216
147
5/18/98 TIP
M
0
0
1
0
27
1
0
0
0 0
219
135
5/18/98 TIP
M
0
0
0
0
0
0
0
0
2 0
175
72
5/18/98 TIP
M
0
0
0
0
0
0
1
0
0 0
268
259
5/18/98 TIP
M
0
0
0
2
1
0
0
0
0 0
305
393
6/17/98 Feeder Dam Pool
M
0
0
0
2
1
0
0
4
0 0
260
247
6/17/98 Feeder Dam Pool
M
0
0
0
1
2
0
0
7
0 0
235
177
6/17/98 Feeder Dam Pool
F
0
0
0
2
5
0
0
0
0 0
233
179
6/17/98 Feeder Dam Pool
M
0
0
0
2
200
2
0
0
0 0
203
115
6/17/98 Feeder Dam Pool
M
0
0
0
21
42
0
0
1
0 0
210
131
6/17/98 Feeder Dam Pool
F
0
0
2
3
140
1
0
2
0 0
196
116
6/17/98 Feeder Dam Pool
F
0
0
0
12
47
1
0
0
0 0
216
134
6/17/98 Feeder Dam Pool
M
0
0
0
22
42
0
1
4
0 0
209
132
6/17/98 Feeder Dam Pool
M
0
0
0
6
33
0
0
0
0 0
220
188
6/17/98 Feeder Dam Pool
F
0
0
0
22
11
0
0
0
0 0
226
139
6/17/98 Feeder Dam Pool
M
0
0
0
0
0
0
0
0
0 0
243
212
6/17/98 Feeder Dam Pool
M
0
0
2
5
9
18
0
0
0 0
295
336
6/17/98 Feeder Dam Pool
F
0
0
0
87
67
1
0
0
0 0
180
72
6/17/98 Feeder Dam Pool
M
0
0
2
1
1
1
0
1
0 0
ludson River Database Release 4.1
17 of 20
MCA/TetraTech
-------
Table A-2 Hudson River Fish Stomach Contents
Fish


Collection


Mosquito
Caddisfly
Horse Fly
Adult

Oligochaete

Species
Length
Weight
Date
Location
Sex
Larvae
Larvae
Nymph
Insect
Pupa Diatoms Setae

Daphnidae
YP
252
210
5/14/97
Hudson above feeder dam
M
0
0
0
0
0
0
0
0
VP
213
130
5/28/97
Hudson @ Troy
M
0
0
0
0
0
0
0
0
VP
252
185
5/12/97
Hudson Stillwater
M
0
0
0
0
0
0
0
0
YP
242
160
5/12/97
Hudson Stillwater
M
0
0
0
0
0
0
0
0
YP
208
120
5/12/97
Hudson Stillwater
M
0
0
0
0
0
0
0
0
YP
185
85
5/12/97
Hudson Stillwater
M
0
0
0
0
0
0
0
0
YP
185
70
5/12/97
Hudson Stillwater
M
0
0
0
0
0
0
0
0
YP
153
40
5/12/97
Hudson Stillwater
M
0
0
0
0
0
0
0
0
YP
156
40
5/12/97
Hudson Stillwater
M
0
0
0
0
0
0
0
0
YP
143
25
5/12/97
Hudson Stillwater
M
0
0
0
0
0
0
0
0
YP
273
270
5/14/97
Hudson above feeder dam
M
0
0
0
0
0
0
0
0
YP
246
210
5/14/97
Hudson above feeder dam
M
0
0
0
0
0
0
0
0
YP
285
330
5/14/97
Hudson above feeder dam
M
0
0
0
0
0
0
0
0
YP
268
290
5/18/98
TIP
M
0
0
0
0
0
0
0
0
YP
216
147
5/18/98
TIP
M
0
0
0
0
0 yes

0
1
YP
219
135
5/18/98
TIP
M
0
0
0
0
0
0
0
0
YP
175
72
5/18/98
TIP
M
0
0
0
0
0
0 yes

75
YP
268
259
5/18/98
TIP
M
0
6
0
0
0
0
0
0
YP
305
393
6/17/98
Feeder Dam Pool
M
0
0
0
0
0 yes

0
0
YP
260
247
6/17/98
Feeder Dam Pool
M
0
0
0
0
0
0
0
0
/P
235
177
6/17/98
Feeder Dam Pool
F
0
0
0
0
0
0
0
0
YP
233
179
6/17/98
Feeder Dam Pool
M
0
0
0
0
0
0
0
0
YP
203
115
6/17/98
Feeder Dam Pool
M
0
0
0
0
0 yes
yes

0
YP
210
131
6/17/98
Feeder Dam Pool
F
0
0
0
0
0
0
0
1
YP
196
116
6/17/98
Feeder Darn Pool
F
0
0
0
0
0
0
0
0
YP
216
134
6/17/98
Feeder Dam Pool
M
0
0
0
0
0
0
0
0
YP
209
132
6/17/98
Feeder Dam Pool
M
4
0
0
0
0
0
0
0
YP
220
188
6/17/98
Feeder Dam Pool
F
0
0
0
0
0 yes

0
3
YP
226
139
6/17/98
Feeder Dam Pool
M
0
0
0
0
0
0
0
0
YP
243
212
6/17/98
Feeder Dam Pool
M
0
0
0
0
0 yes

0
0
YP
295
336
6/17/98
Feeder Dam Pool
F
1
0
0
0
0
0 yes

0
YP
180
72
6/17/98
Feeder Dam Pool
M
0
0
0
0
0
0 yes

0
ludson River Database Release 4.1
18 of 20
MCA/TetraTech
-------
Table A-2 Hudson River Fish Stomach Contents
Fish


Collection


Cray Chironom Amphi



Dragonfly Caddisfly Damsel Fly
pecies
Length
Weight
Date Location
Sex
Fish
fish
id
pods
Isopods
Snails
Clams
Nymph
Nymph
Nymph

224
129
6/17/98 Feeder Dam Pool
F
0
0
0
0
0
0
0
0
0
0

220
153
6/17/98 Feeder Dam Pool
F
0
0
2
4
32
0
1
0
0
0

195
99
6/17/98 Feeder Dam Pool
F
0
0
0
1
0
0
0
0
0
0

260
213
6/17/98 Feeder Dam Pool
F
0
0
0
35
10
1
0
0
0
1

249
212
6/17/98 Feeder Dam Pool
M
0
0
0
8
4
5
0
3
0
0

258
245
6/17/98 Feeder Dam Pool
F
0
0
0
0
0
0
0
0
0
0

156
41.4
5/21/98 Coveville Marina
F
0
0
0
1
4
0
0
0
0
0

155
50.9
5/21/98 Coveville Marina
M
0
0
0
0
0
0
0
20
0
0

125
20.3
5/21/98 Coveville Marina
M
0
0
0
15
4
0
0
0
0
0

110
14.2
5/21/98 Coveville Marina
M
0
0
0
2
2
0
0
0
0
0

116
17.8
5/21/98 Coveville Marina
F
0
0
0
1
0
0
0
0
0
0

296
324
5/21/98 Coveville Marina
F
0
0
0
0
0
0
0
0
0
0

150
44.3
5/21/98 Coveville Marina
M
0
0
0
0
0
0
0
0
0
0

199
80.6
5/21/98 Coveville Marina
M
0
0
1
2
4
2
1
0
0
0

212
174.1
5/21/98 Coveville Marina
F
0
0
0
1
0
2
2
1
1
0

153
43.2
5/21/98 Coveville Marina
F
0
0
0
0
0
0
1
0
0
0

147
43.7
5/21/98 Coveville Marina
F
0
0
1
1
2
0
0
0
0
0

199
100.3
5/21/98 Coveville Marina
M
0
0
80
3
0
0
0
0
0
0

149
43.3
5/21/98 Coveville Marina
F
0
0
0
16
7
0
0
1
0
0

147
32.8
5/21/98 Coveville Marina
M
0
0
0
8
0
2
0
10
0
0

143
33.6
5/21/98 Coveville Marina
F
0
0
0
10
11
0
0
0
0
0
1 Totals




0
0
130
457
867
77
223
87
13
27
Hudson River Database Release 4.1
19 of 20
MCA/TetraTech
-------
Table A-2 Hudson River Fish Stomach Contents
Fish


Collection


Mosquito
Caddisfly
Horse Fly
Adult

Oligochaete

Species
Length
Weight
Date
Location
Sex
Larvae
Larvae
Nymph
Insect
Pupa Diatoms Setae

Daphnidae
YP
224
129
6/17/98
Feeder Dam Pool
F
0
0
0
0
0 yes
yes

0
YP
220
153
6/17/98
Feeder Dam Pool
F
0
0
0
0
0 yes

0
0
YP
195
99
6/17/98
Feeder Dam Pool
F
0
0
0
0
0
0 yes

0
YP
260
213
6/17/98
Feeder Dam Pool
F
1
0
0
0
0
0
0
0
YP
249
212
6/17/98
Feeder Dam Pool
M
0
0
0
0
0 yes

0
0
YP
258
245
6/17/98
Feeder Dam Pool
F
0
0
0
0
0
0
0
0
YP
156
41.4
5/21/98
Coveville Marina
F
0
0
0
0
0 yes

0
0
YP
155
50.9
5/21/98
Coveville Marina
M
0
0
0
0
0
0
0
0
YP
125
20.3
5/21/98
Coveville Marina
M
0
0
0
0
0 yes
yes

0
YP
110
14.2
5/21/98
Coveville Marina
M
0
0
0
0
0
0 yes

12
YP
116
17.8
5/21/98
Coveville Marina
F
0
0
0
0
0
0
0
2
YP
296
324
5/21/98
Coveville Marina
F
0
0
0
0
0
0
0
0
YP
150
44.3
5/21/98
Coveville Marina
M
0
0
0
0
0
0 yes

18
YP
199
80.6
5/21/98
Coveville Marina
M
0
0
0
0
0
0 yes

0
YP
212
174.1
5/21/98
Coveville Marina
F
0
0
0
0
0
0 yes

0
YP
153
43.2
5/21/98
Coveville Marina
F
0
0
0
0
0
0
0
500
YP
147
43.7
5/21/98
Coveville Marina
F
0
0
0
0
0 yes

0
500
YP
199
100.3
5/21/98
Coveville Marina
M
0
0
0
0
0 yes

0
0
YP
149
43.3
5/21/98
Coveville Marina
F
0
0
0
0
0
0
0
0
YP
147
32.8
5/21/98
Coveville Marina
M
0
0
0
0
0
0 yes

0
YP
143
33.6
5/21/98
Coveville Marina
F
0
0
0
0
0 yes
yes

27
YP Totals





158
19
0
0
0
17
16
1139
Hudson River Database Release 4.1
20 of 20
MCA/TetraTech
-------
Table A-3 Distribution and Preferential Habitats of
Largemouth Bass and White Perch
Distribution of Largemouth Bass by Lock Pool in the Upper Hudson (MPI, 1984)




Lock 4 to
Lock 4 to
Lock 4 to


Dam to
Lock 1 to
Lock 2 to
Lock 3 to
Lock 5
Lock 5
Lock 5
Lock 5 to
Lock 6 tc
Lock 1
Lock 2
Lock 3
Lock 4
downstream
middle
upstream
Lock 6
Lock 7
17
5
24
3
41
11
15
15
4
Preferential Habitats for Largemouth Bass in the Upper Hudson River (MPI, 1984)
Artificial
Cut
Shallow
Wetland
Stream
Mouth
Wet
Dumpsite
Alt.
Channel
Embayme
nt
12
14
34
28
13
4
37
Distribution of White Perch by Lock Pool in the Upper Hudson (MPI, 1984)




Lock 4 to
Lock 4 to
Lock 4 to


Dam to
Lock 1 to
Lock 2 to
Lock 3 to
Lock 5
Lock 5
Lock 5
Lock 5 to
Lock 6 tc
Lock 1
Lock 2
Lock 3
Lock 4
downstream
middle
upstream
Lock 6
Lock 7
44
17
0
0
0
0
0
0
1
Preferential Habitats for White Perch in the Upper Hudson River (MPI, 1984)
Artificial


Stream
Wet
Alt.

Cut
Shallow
Wetland
Mouth
Dumpsite
Channel
Rapids
6
24
13
8
4
6
2
Hudson River Database Release 4.1
MCA/TetraTech
-------
Table A-4
White Perch Chironomid Identification for the Hudson River
Taxon
Number
Habitat
Association
Fish No. 1



Ablabesmyia simpsoni
4
sprawler
epiphytic
Coelotanypus
1
burrower
sediment
Procladius (Holotanypus)
9
burrower
sediment
Cryptochironomus
1
sprawler & burrower
both
Cryptotendipes
86
burrower
sediment
Paralauterbomiella
1
dinger
epiphytic
Polypedilum illinoense grp.
1
dinger
epiphytic
Tanytarsus
11
burrower
sediment
Fish No. 2



Polypedilum illinoense grp.
13
sprawler
epiphytic
Dicrotendipes neomodestus
9
sprawler
epiphytic
Fish No. 3



Ablabesmyia simpsoni
8
sprawler
epiphytic
Procladius (H.) sp.
5
burrower
sediment
Procladius (Ps.) bellus
1
burrower
sediment
Chironomus
5
burrower
sediment
Cryptochironomus
1
sprawler & burrower
both
Cryptotendipes
48
burrower
sediment
Harnishchia
2
dinger
epiphytic
Polypedilum halterale grp.
1
sprawler
epiphytic
Polypedilum illinoense grp.
1
sprawler
epiphytic
Paralauterbomiella
4
dinger
epiphytic
Tanytarsus
2
burrower
sediment
Pupa
2


Copepoda



Fish No. 4



Meropelopia
1


Dicrotendipes neomodestus
4
sprawler
epiphytic
Glyptotendipes
1
dinger
epiphytic
Polypedilum illinoense grp.
6
sprawler
epiphytic
Fish No. 5



Cricotopus bicinctus grp.
1
dinger
epiphytic
Dicrotendipes neomodestus
15
sprawler
epiphytic
Polypedilum illinoense grp.
37
sprawler
epiphytic
P. scalaenum
1
dinger
epiphytic
Hudson River Database Release 4.1
MCA/TetraTech
-------
Table A-5 Distribution and Preferential Habitats of
Yellow Perch and Brown Bullhead
Distribution of Yellow Perch by Lock Pool in the Upper Hudson (MPI, 1984)




Lock 4 to
Lock 4 to
Lock 4 to


Dam to
Lock 1 to
Lock 2 to
Lock 3 to
Lock 5
Lock 5
Lock 5
Lock 5 to
Lock 6 to
Lock 1
Lock 2
Lock 3
Lock 4
downstream
middle
upstream
Lock 6
Lock 7
23
1
12
12
6
8
20
36
24
Preferential Habitats for Yellow Perch in the Upper Hudson River (MPI, 1984)
Artificial
Cut
Shallow
Wetland
Stream
Mouth
Wet
Dumpsite
Alt.
Channel
Embaym
ent
15
20
46
17
13
14
37
Distribution of Brown Bullhead by Lock Pool in the Upper Hudson (MPI, 1984)




Lock 4 to
Lock 4 to
Lock 4 to


Dam to
Lock 1 to
Lock 2 to
Lock 3 to
Lock 5
Lock 5
Lock 5
Lock 5 to
Lock 6 to
Lock 1
Lock 2
Lock 3
Lock 4
downstream
middle
upstream
Lock 6
Lock 7
6
1
24
14
27
8
6
3
8
Preferential Habitats for Brown Bullhead in the Upper Hudson River (MPI, 1984)
Artificial


Stream
Wet
Alt.
Embaym
Cut
Shallow
Wetland
Mouth
Dumpsite
Channel
ent
0
5
43
10
5
13
30
Hudson River Database Release 4.1
MCA/TetraTech
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Table A-6
Pumpkinseed Chironomid Identification for the Hudson River
Taxon
Number
Habitat
Association
Fish No. 1



Cricotopus bicinctus grp.
1


Cricotopus sylvestris grp.
1
sprawler & burrower
both
Psectrocladius
3


Synorthocladius
1


Dicrotendipes neomodestus
3
sprawler
epiphytic
Polypedilum convictum grp.
3
sprawler
epiphytic
Polypedilum illinoense grp.
8
sprawler
epiphytic
Rheotanytarsus
3
spawler
epiphytic
Fish No. 2



Cricotopus sylvestris grp.
1
sprawler & burrower
both
Psectrocladius
1
sprawler
epiphytic
Polypedilum convictum grp.
1
sprawler
epiphytic
Polypedilum illinoense grp.

sprawler
epiphytic
Paratanytarsus
1
sprawler
epiphytic
Rheotanytarsus

sprawler
epiphytic
Chrioonomidae pupae
1


Lepidoptera larvae
1


Fish No. 3



Ablabesmyia simpsoni
1
sprawler
epiphytic
Cricotopus sylvestris grp.

sprawler & burrower
both
Psectrocladius
1
sprawler
epiphytic
Thienemanniella
1
dinger
epiphytic
Polypedilum convictum grp.
3
sprawler
epiphytic
Polypedilum illinoense grp.
25
sprawler
epiphytic
Rheotanytarsus
1
dinger
epiphytic
Hudson River Database Release 4.1
MCA/TetraTech
-------
Table A-7 Distribution and Preferential Habitats of
Pumpkinseed and Spottail Shiner
Distribution of Pumpkinseed by Lock Pool in the Upper Hudson (MPI, 1984)
Dam to
Lock 1
Lock 1 to
Lock 2
Lock 2 to
Lock 3
Lock 3 to
Lock 4
Lock 4 to
Lock 5
downstream
Lock 4 to
Lock 5
middle
Lock 4 to
Lock 5
upstream
Lock 5 to
Lock 6
Lock 6 to
Lock 7
98
12
123
67
164
33
46
157
96
Preferential Habitats for Pumpkinseed in the Upper Hudson River (MPI, 1984)
Artificial
Cut
Shallow
Wetland
Stream
Mouth
Wet
Dumpsite
Alt.
Channel
Embayme
nt
35
82
234
210
50
35
182
Distribution of Spottail Shiner by Lock Pool in the Upper Hudson (MPI, 1984)




Lock 4 to
Lock 4 to
Lock 4 to


Dam to
Lock 1 to
Lock 2 to
Lock 3 to
Lock 5
Lock 5
Lock 5
Lock 5 to
Lock 6 to
Lock 1
Lock 2
Lock 3
Lock 4
downstream
middle
upstream
Lock 6
Lock 7
26
3
27
1
13
22
7
36
36
Preferential Habitats for Spottail Shiner in the Upper Hudson River (MPI, 1984)
Artificial


Stream
Wet
Alt.
Embayme
Cut
Shallow
Wetland
Mouth
Dumpsite
Channel
nt
3
9
32
2
68
35
4
Hudson River Database Release 4.1
MCA/TetraTech
-------