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Agency

Harmful Algal Blooms (HABs) Newsletter

In this issue

EPA Updates	P.1

News	P.2

Upcoming Events	P.3

Useful Resources	P.3

HABs Advisories	P.3

Recenty Published	P.4
Articles

CyanoHABs in Water Bodies website

'Looking for even more HABs
information? Visit EPA's

Bs 1

April 2021

Mention of trade names, products,
or services in this newsletter does

not convey and should not be
interpreted as conveying official
EPA endorsement, approval, or
recommendation for use.

Members of the Planning Team (from top left): Rochelle Labiosa (EPA),
Steve Morton (NOAA), Tina Laidlaw (EPA), Chris Whitehead (Sitka Tribe),
Katie Foreman (EPA), Todd Leighfield (NOAA) and Lesley D'Anglada (EPA)

EPA Updates!

HAB's Research, Resources, and Tools

Members of tribal communities, water utilities, city and county
government agencies, local and regional watershed groups, state
environmental and health agencies, federal government, local and
national environmental non-profits, universities, and attendees
from academia and non-profit research organizations from
Portugal, Canada, and Denmark joined the three-part webinar
series on the impacts of marine and freshwater HABs in tribal
communities held on March 10, 16 and 18.

More than 300 people attended the webinar on each of the
respective three webinar days. This webinar series is the first of its
kind and the largest national effort to engage tribes in managing
the unique challenges that HABs pose to their communities.
Recordings and presentations will be posted to the EPA CyanoHABs
website soon.

EPA, NOAA and the Sitka Tribe of Alaska's
Managing Harmful Algal Blooms in Tribal
Waters Webinar Series


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NEWS ON HABs

ITRC's New Strategies for Preventing and Managing Harmful Cyanobacterial

Blooms (HCBs) Guidance

On March 19, the Interstate Technology & Regulatory Council (ITRC) Harmful Cyanobacterial
Blooms Team (HCB) Team published a technical guidance document with useful tools and
resources on prevention, monitoring, mitigation strategies, communication and response to
planktonic HCBs. The guidance, intended to assist waterbody managers and other interested
parties to respond and manage harmful cyanobacterial blooms, provides several tools to help
them select appropriate methods for monitoring, managing of nutrients and response planning.

Along with the guidance, the HCB Team also developed a series of downloadable sheets that
provide descriptions of management strategies evaluated for effectiveness, advantages,
limitations, relative cost, and regulatory and policy considerations.

In the next few months, the ITRC's HCB Team will be hosting live internet-based training
sessions to accompany this new guidance. Members of the ITRC HCB Team included
representatives from States and Local Health and Environmental Agencies, academia and federal
government.

CDC Releases Spanish Language Cyanobacteria Health Promotion Web Pages

The CDC recently translated to Spanish health promotion resources on cyanobacteria. See the
resources here:

1)	Information for animal owners: Alerta para la seguridad de los animates

2)	Information for healthcare providers: Referenda para los medicos sobre las
proliferaciones cianobacterianas

3)	Information for veterinarians: Referenda para los veterinarios sobre las proliferaciones
cianobacterianas

4)	Animal safety poster: Posters I Harmful Algal Blooms I CDC

5)	Physician, veterinarian, and pet or livestock owner reference cards: Reference Cards

Virginia Department of Health (VDH) Guidance for the Recreational advisory
management of cyanobacteria Available for Public Comments

The Virginia Department of Health (VDH) has proposed updated guidance for the recreational
advisory management of cyanobacteria. The guidance is available for formal public comment
March 15 through April 14. To view and comment on the proposed guidance please visit:

https://townhall.virginia.gov/L/comments.cfm?GDocForumlD=507

For more information please contact Margaret Smigo at m a rga ret. s m i go @ yd h. vi rgi n i a. go v

NASA Goddard's VIDEO: Landsat Helps Warn of Algae in Lakes. Rivers


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Reported Blooms, Beach Closures, and Health
Advisories* - March 2021

Includes blooms, cautions, warnings, public health advisories, closings, and detections over state thresholds, due
to the presence of algae, toxins, or both. This is riot a comprehensive list, arid many blooms may have not been
recoiled or lakes are not activelv monitored.

Seattle

an Francisco

9	Advisory

9	Bloom

9	Closing

#	Warning

9	Danger

*	Caution

, Uj« Angeles

Great Plains

UNITED
STATES

Dallas

Toronto

Chicago o
~

Detroit

Montreal

o

Boston
New York

St Louis

Houston

Monterrey

Atlanta!



Miami

Click the State below to see the reported blooms for the month of March 2021

California (10) Florida (3) Montana (2) Ohio (1) Oregon (1) South Carolina (1) Texas (1)

Upcoming Virtual Events: 2021

2021 National Recreational Water Quality Workshop

April 6-8 - Focus on fecal contamination and HABs

10.5 US HAB Symposium - May 25-27
Presentations from student, postdoctoral, and early career
(< 3 years post terminal degree) community members

ASLO 2021 Aquatic Sciences Meeting - June 22-27
Special Session on Interactions of HABs, Eutrophication and
Carbonate Chemistry in Coastal Oceans and Large Lakes

19th International Conference on Harmful Algae

October,10-15, La Paz, B.C.S. (live and virtual)

Recordings from the
New Jersey Department

of Environmental
Protection 2021 Virtual
HABs Summit held on
March 8 are now
available here.

Virginia Institute of Marine Science* Discovery Lab HABs
April 20, 6:00 - 7:30pm Free Online Event

Join VIMS scientist Marta Sanderson in explaining what we know about how and why HABs form
and how that information is improving our ability to detect HABs and even forecast when and
where they may occur. Discovery labs are free, family-friendly programs that include activities
and a short presentation. They are presented by the Chesapeake Bay National Estuarine
Research Reserve (CBNERR) at VIMS. Registration is required. Register now


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Recently Published Articles*

Effects of lake warming on the seasonal risk of toxic cyanobacteria exposure: Seasonal risk of toxic
cyanobacteria exposure

Hayes, Nicole & Haig, Heather & Simpson, Gavin & Leavitt, Peter. 2020. Limnology and Oceanography
Letters. 5. 10.1002/lol2.10164.

Capitalizing on harmful algal blooms: from problems to products

Alina A. Corcoran, Ryan W. Hunt. 2021. Algal Research, Volume 55, 102265.

Responses of cyanobacterial aggregate microbial communities to algal blooms

Congmin Zhu, Junyi Zhang, Xin Wang, Yuqing Yang, Ning Chen, Zuhong Lu, Qinyu Ge, Rui Jiang,
Xuegong Zhang, Yunfeng Yang, Ting Chen. 2021. Water Research, Volume 196, 117014.

The Latin America and Caribbean HAB status report based on OBIS and HAEDAT maps and
databases

Ines Sunesen, Silvia M. Mendez, Jose Ernesto Mancera-Pineda, Marie-Yasmine Dechraoui Bottein,

Henrik Enevoldsen. 2021. Harmful Algae, 101920.

From unusual suspect to serial killer: Cyanotoxins boosted by climate change may jeopardize
megafauna

Haijun Wang, Chi Xu, Ying Liu, Erik Jeppesen, Jens-Christian Svenning, Jianguo Wu, Wenxia Zhang,
Tianiun Zhou, Puze Wang, Shingirai Nangombe, Jinge Ma, Hongtao Duan, Jingyun Fang, PingXie. 2021.
The Innovation, Volume 2, Issue 2, 100092.

Cyanotoxin mixture models: Relating environmental variables and toxin co-occurrence to human
exposure risk

Victoria G. Christensen, Erin A. Stelzer, Barbara C. Eikenberry, Hayley T. Olds, Jaime F. LeDuc, Ryan
P. Maki, Alisha M. Saley, Jack Norland, Eakalak Khan. 2021. Journal of Hazardous Materials, Volume
415, 125560.

CyanoMetDB, a comprehensive public database of secondary metabolites from cyanobacteria
Martin R. Jones, Ernani Pinto, Mariana A. Torres, Fabiane Dorr, Hanna Mazur-Marzec, Karolina Szubert,
Luciana Tartaglione, Carmela Dell'Aversano, Christopher O. Miles, Daniel G. Beach, Pearse McCarron,
Kaarina Sivonen, David P. Fewer, Jouni Jokela, Elisabeth M.-L. Janssen. 2021. Water Research, Volume
196, 117017.

The sensitivity of multiple ecotoxicological assays for evaluating Microcystis aeruginosa cellular
algal organic matter and contribution of cyanotoxins to the toxicity

Kamila Sredlova, Simona Silhavecka, Lucie Linhartova, Jaroslav Semerad, Klara Michalikova, Martin
Pivokonsky, Tomas Cajthaml. 2021. Toxicon, Volume 195, 2021, 69-77.

Hunting the Eagle Killer: A Cyanobacterial Neurotoxin Causes Vacuolar Myelinopathy

Breinlinger et al. 2021. Toxicon, Volume 195, 2021, 69-77.

* Articles are retrieved from Science Direct research database searching for the following key words:
cyanobacteria, cyanotoxins, harmful algal blooms, and HAB(s).

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