harmful algal blooms in kentucky governor's conference on energy and environment 2014 mark...
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Harmful Algal Blooms in Kentucky
Governor's Conference on Energy and Environment 2014
Mark MartinKentucky Division of Water
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Harmful Algal Blooms: Background
What is a harmful algal bloom (HAB)?
• excessive growth of cyanobacteria aka blue-green algae – WHO, DOW and USACE recognize 100,000 cells/mL as cautionary level
• can potentially produce toxins capable of causing illness or irritation - sometimes death - in pets, livestock, and humans
• caused by a combination of environmental factors including abundant nutrients (N and P) warmer temperatures, lentic waters and sunlight
• nutrient sources include agricultural runoff, lawn fertilizers, sewage effluent and P weathered from the limestone bedrock here in the Bluegrass
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What does a bloom look like?
Lake Reba – Madison County September 2014 Anabaena
![Page 4: Harmful Algal Blooms in Kentucky Governor's Conference on Energy and Environment 2014 Mark Martin Kentucky Division of Water](https://reader035.vdocuments.net/reader035/viewer/2022062806/56649edb5503460f94bea576/html5/thumbnails/4.jpg)
What does a bloom look like?
Lake Reba – Madison County September 2014 Anabaena
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Objective
What does a bloom look like?
Lake Reba – Madison County September 2014 Anabaena - Microcystis
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What does a bloom look like?
Neighborhood lake-Grant County August 2013Anabaena
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What does a bloom look like?
Long Run LakeJefferson County ParksAugust 2014Oscillatoria-Anabaena-Woronichinia
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What does a bloom look like?
Farm pond – Scott CountyAugust 2013Oscillatoria
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What does a bloom look like?
Fox Valley Lake – Fleming Co.August 2014Aphanizomenon
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Anabaena
Microcystis
What does a bloom look like?
Anabaena appears here as a filament comprised of 16 cells. The 6th cell from the left is a heterocyst that can fix atmospheric nitrogen.
Microcystis is in a colony comprised of hundreds of cells in a mucilaginous sheath
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What does a bloom look like?
Lake Reba – Madison County September 2014 Anabaena - Microcystis
![Page 12: Harmful Algal Blooms in Kentucky Governor's Conference on Energy and Environment 2014 Mark Martin Kentucky Division of Water](https://reader035.vdocuments.net/reader035/viewer/2022062806/56649edb5503460f94bea576/html5/thumbnails/12.jpg)
Lake Reba – Madison County September 2014 Anabaena - Microcystis
What does a bloom look like?
Phycocyanin pigment
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A Bloom might look like this
Beaver Lake – Anderson CountyAugust 2013Cylindrospermopsis
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Where do the nutrients come from?
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Where do the nutrients come from?
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Where do they go?
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What can we do about this?The only factor we have control
over is to reduce nutrient inputs.
Kentucky Nutrient Reduction StrategyPaulette AkersWatershed Management BranchKentucky Division of Water