Hilsenhoff Biotic Index

quantiles

not measured
lo

med
hi



O

CO -

o
©

	 CD -

¥

,TI 1

CD

ft !

X ^ -

9 0

CM -

1
1

~T~
0

I

x

~T~
1

0

l

x

~T~
2

0
9

1
l

i
l
l

x

~T~
3

~T~
4

~T~
5

~T~
6

T
I

B	B	M M

U	1	XXX

I	I

!	i	© o

T
7

o

T"
8

Strahler Order from RF3 Stream Data

Source: www.epa.gov/bioiweb1/statprimer/

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