harmful algal blooms

17
Great Lakes Environmental Research Laboratory Review – Ann Arbor, MI November 15-18, 2010 1 Click to edit Master text styles Second level • Third level – Fourth level » Fifth level Harmful Algal Blooms photo by Diane Straw Juli Dyble Bressie

Upload: dayo

Post on 28-Jan-2016

137 views

Category:

Documents


1 download

DESCRIPTION

Harmful Algal Blooms. photo by Diane Straw. Juli Dyble Bressie. Partners. Richard Stumpf (NOAA/NOS) Shelly Tomlinson (NOAA/NOS) David Millie (USF) Richard Rediske (GVSU ) Lorrie Backer (CDC) Pat Tester (NOAA/NOS) Wayne Litaker (NOAA/NOS) Greg Boyer (SUNY-Syracuse) - PowerPoint PPT Presentation

TRANSCRIPT

Page 1: Harmful Algal  Blooms

Great Lakes Environmental Research Laboratory Review – Ann Arbor, MI November 15-18, 2010 1

Click to edit Master text styles– Second level

• Third level– Fourth level

» Fifth level

Harmful Algal Blooms

pho

to b

y D

iane

Str

aw

Juli Dyble Bressie

Page 2: Harmful Algal  Blooms

Great Lakes Environmental Research Laboratory Review – Ann Arbor, MI November 15-18, 2010 2

Click to edit Master text styles– Second level

• Third level– Fourth level

» Fifth level

Great Lakes Environmental Research Laboratory Review – Ann Arbor, MI November 15-18, 2010 2

Partners

Richard Stumpf (NOAA/NOS)

Shelly Tomlinson (NOAA/NOS)

David Millie (USF)

Richard Rediske (GVSU)

Lorrie Backer (CDC)

Pat Tester (NOAA/NOS)

Wayne Litaker (NOAA/NOS)

Greg Boyer (SUNY-Syracuse)

Steve Wilhelm (U. Tennessee)

Orlando Sarnelle (Michigan State U)

Alan Wilson (Auburn University)

pho

to b

y To

m Jo

yce

Center of Excellence for Great Lakes and Human Health

Page 3: Harmful Algal  Blooms

Great Lakes Environmental Research Laboratory Review – Ann Arbor, MI November 15-18, 2010 3

Click to edit Master text styles– Second level

• Third level– Fourth level

» Fifth level

Great Lakes Environmental Research Laboratory Review – Ann Arbor, MI November 15-18, 2010 3

pho

to b

y To

m A

rche

r

• Degrade water quality (hypoxia, taste/odor, recreational value)• Alter food webs (large amount of biomass; often not grazed)• Toxin production (neurotoxins, hepatotoxins, dermatotoxins)

Microcystis sp.

Concerns

Page 4: Harmful Algal  Blooms

Great Lakes Environmental Research Laboratory Review – Ann Arbor, MI November 15-18, 2010 4

Click to edit Master text styles– Second level

• Third level– Fourth level

» Fifth level

Harmful Algal Bloom and Hypoxia Research and Control Act Mandate for NOAA to advance scientific understanding and ability to detect,

monitor, assess, predict, control, and mitigate HABs and hypoxia events

Legislative Mandate

Distribution of HABs

in the US

From Judy Kleindinst, WHOI

1998 • First authorized

by Congress

2004• Reauthorized

and expanded

2010• HABHRCA 2004

expires

• House passed HABHRCA 2010

• Senate vote in Fall

Page 5: Harmful Algal  Blooms

Great Lakes Environmental Research Laboratory Review – Ann Arbor, MI November 15-18, 2010 5

Click to edit Master text styles– Second level

• Third level– Fourth level

» Fifth level

Great Lakes Environmental Research Laboratory Review – Ann Arbor, MI November 15-18, 2010 5

Legislative Mandate

Objective: Improved coastal water qualitysupporting human health and coastal ecosystem

servicesOver the next five years, evidence of progress toward this objective will include:

• Greater understanding of the effects of natural and human-induced contaminants on the health of humans and marine life;

• Reduced impacts to human health and ecosystem

services due to degraded water quality;

• Faster detection of sediments and contaminants in coastal waters;

• Accelerated recovery and restoration of coastal resources and revitalization of coastal communities through improved water quality.

Page 6: Harmful Algal  Blooms

Great Lakes Environmental Research Laboratory Review – Ann Arbor, MI November 15-18, 2010 6

Click to edit Master text styles– Second level

• Third level– Fourth level

» Fifth level

Great Lakes Environmental Research Laboratory Review – Ann Arbor, MI November 15-18, 2010 6

Lake Erie

LakeHuron

Lake Ontario

SaginawBay

Lake Superior

Lak

e M

ichi

gan

HABs in the Great Lakes

Drinking water supply for 40 million US and Canadian citizens

Over 500 beaches for swimming and recreation

Seafood supply

Page 7: Harmful Algal  Blooms

Great Lakes Environmental Research Laboratory Review – Ann Arbor, MI November 15-18, 2010 7

Click to edit Master text styles– Second level

• Third level– Fourth level

» Fifth level

Great Lakes Environmental Research Laboratory Review – Ann Arbor, MI November 15-18, 2010 7

Modeling

Goals

Limnological

Experimental

Molecular

Remote sensing

1. Understand the ecological factors controlling bloom growth and toxicity

2. Develop to capacity to detect and predict toxic HAB blooms in order to protect human health

Page 8: Harmful Algal  Blooms

Great Lakes Environmental Research Laboratory Review – Ann Arbor, MI November 15-18, 2010 8

Click to edit Master text styles– Second level

• Third level– Fourth level

» Fifth level

Great Lakes Environmental Research Laboratory Review – Ann Arbor, MI November 15-18, 2010 8

Key Scientific Questions

1. What are the ecological factors that control the initiation, growth, intensity and toxicity of Microcystis blooms in the Great Lakes?

2. What is the potential for human exposure to cyanotoxins in the Great Lakes?

3. How do we protect human and ecological health from the impacts of HABs in the Great Lakes?

pho

to b

y Ju

li D

yble

Page 9: Harmful Algal  Blooms

Great Lakes Environmental Research Laboratory Review – Ann Arbor, MI November 15-18, 2010 9

Click to edit Master text styles– Second level

• Third level– Fourth level

» Fifth level

9

1. Long-term monitoring of Microcystis, microcystin and key environmental factors

Phot

o by

Dia

ne S

traw

0

100

200

300

Mic

rocy

stis

(x

106 μ

m3

L-1)

TP (μg L-1)

0 17 34 51

2

6

10

14

18

22

26

TEMP (oC)

200

300

100

200

300

0

100

200

300

0

0

100

200

300

170

0

100

200

300

34170

0

100

200

300

513417 5134 68

What are the ecological factors that control the initiation, growth, intensity and toxicity of Microcystis blooms in the Great Lakes?

Page 10: Harmful Algal  Blooms

Great Lakes Environmental Research Laboratory Review – Ann Arbor, MI November 15-18, 2010 10

Click to edit Master text styles– Second level

• Third level– Fourth level

» Fifth level

10

What are the ecological factors that control the initiation, growth, intensity and toxicity of Microcystis blooms in the Great Lakes?

Novel genetic characterization of blooms

from Pearson et al 2004

M

Page 11: Harmful Algal  Blooms

Great Lakes Environmental Research Laboratory Review – Ann Arbor, MI November 15-18, 2010 11

Click to edit Master text styles– Second level

• Third level– Fourth level

» Fifth level

11

Yellow perch, Perca flavescens

What is the potential for human exposure to cyanotoxins in the Great Lakes?

1) 2

2) Field and lab studies of microcystin accumulation in fish

2) Microcystin in drinking water supplies of Lake Erie island communities

Western Lake Erie perch (2006)

Conservative limit for microcystin in fish tissues:

9.5 ng microcystin g-1

Phot

o by

Tom

Joyc

e

Page 12: Harmful Algal  Blooms

Great Lakes Environmental Research Laboratory Review – Ann Arbor, MI November 15-18, 2010 12

Click to edit Master text styles– Second level

• Third level– Fourth level

» Fifth level

Great Lakes Environmental Research Laboratory Review – Ann Arbor, MI November 15-18, 2010 12

Lake Erie as Drinking Water Supply

Toledo

Oregon

Pelee Island

Kelley’s Island

Middle Bass

South Bass

Catawba

Sandusky

MarbleheadPt. Clinton

Huron

Camp Perry

Vermilion

Avon Lake

Lorain

Elyria

MO

DIS

imag

ery,

Coa

stW

atch

, GLE

RL,

7 O

ct 2

007

Page 13: Harmful Algal  Blooms

Great Lakes Environmental Research Laboratory Review – Ann Arbor, MI November 15-18, 2010 13

Click to edit Master text styles– Second level

• Third level– Fourth level

» Fifth level

13

How do we protect human and ecological health from the impacts of HABs in the Great Lakes?

Lake Erie Experimental HAB Forecast SystemSource data: HAB density and distribution from MERIS

imagery

Circulation Model: Great Lakes Forecast System, POM-based

Transport: particle tracking model (GNOME) predict bloom position in 2-3 days

Field validation: Measuring Microcystis distribution in western Erie along w/ key environmental variables

Page 14: Harmful Algal  Blooms

Great Lakes Environmental Research Laboratory Review – Ann Arbor, MI November 15-18, 2010 14

Click to edit Master text styles– Second level

• Third level– Fourth level

» Fifth level

Great Lakes Environmental Research Laboratory Review – Ann Arbor, MI November 15-18, 2010 14

Erie Harmful Algal Bloom Forecast

Conditions: A Microcystis bloom has been identified in Maumee Bay, extending north to Brest Bay

Analysis: Imagery indicates a large cyanobacterial bloom persists in western Lake Erie. Field counts suggest the bloom is dominated by Anabaena with low to very low concentrations of Microcystis present.

Page 15: Harmful Algal  Blooms

Great Lakes Environmental Research Laboratory Review – Ann Arbor, MI November 15-18, 2010 15

Click to edit Master text styles– Second level

• Third level– Fourth level

» Fifth level

Great Lakes Environmental Research Laboratory Review – Ann Arbor, MI November 15-18, 2010 15

Users of Lake Erie HAB Bulletin

• Lake Erie Water Utilities: Toledo, South Bass Island, Kelley’s Island, Cleveland, American Water, NE Ohio Regional Sewer District

• Health Departments: Monroe, Toledo, Port Clinton

• Beach Managers: Cleveland Metro Parks

• State and City Governments: Ohio DNR, Ohio EPA, Cities of Huron, Monroe, Sandusky, Lorain, Oregon, Cleveland, Luna Pier

• Academics: University of Toledo, University of Michigan, Heidelberg University

• Private Citizens

Phot

o: L

. Mer

chan

t-M

ason

brin

k

Page 16: Harmful Algal  Blooms

Great Lakes Environmental Research Laboratory Review – Ann Arbor, MI November 15-18, 2010 16

Click to edit Master text styles– Second level

• Third level– Fourth level

» Fifth level

Great Lakes Environmental Research Laboratory Review – Ann Arbor, MI November 15-18, 2010 16

Future Work

• Real time data from buoy-based sensors– nutrients – phycocyanin, chlorophyll a– microcystin– Microcystis-specific molecular probes

• Ecological model to better predict bloom dynamics and toxicity – part of HAB forecast

• Operational HAB forecast for western Erie and Saginaw Bay (Lake Huron)

• Continue to combine genetic and ecological approaches to better understand HAB growth and toxicity

Page 17: Harmful Algal  Blooms

Great Lakes Environmental Research Laboratory Review – Ann Arbor, MI November 15-18, 2010 17

Click to edit Master text styles– Second level

• Third level– Fourth level

» Fifth levelQuestions?

Phot

o by

Tom

Arc

her