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Chesapeake Bay: – THE DEAD ZONE

Chesapeake Bay: – THE DEAD ZONE. The Chesapeake watershed incorporates six states (DE, MD, NY, VA, PA, & W. VA). Protect WHAT??. Important waterfowl nesting site: herring gulls, osprey, bald eagle. Oyster beds, Blue Crab support large economic industries. DEAD ZONE : Anoxic Conditions. S T

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Chesapeake Bay: – THE DEAD ZONE

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  1. Chesapeake Bay: – THE DEAD ZONE The Chesapeake watershed incorporates six states (DE, MD, NY, VA, PA, & W. VA) Protect WHAT?? Important waterfowl nesting site: herring gulls, osprey, bald eagle Oyster beds, Blue Crab support large economic industries

  2. DEAD ZONE : Anoxic Conditions S T O R M W A T E R EUTROPHICATION: increased nutrients = increased algal mats = increased bacteria growth = decrease in available oxygen Sewage AGRICULTURE Contaminants like sediment, phosphorus, nitrogen, toxic metals, herbicides and pesticides, organic material, oil, and bacteria. Roadways release oil and grease, tailpipe emissions. Lawns contribute fertilizer and animal waste. Construction sites release quantities of mud.

  3. Over harvesting certain organisms can cause coral death – CROWN OF THORNS CASE STUDY Removal of certain species, especially the Triton, allows Crown of Thorns starfish population to increase. COT’s are natural predators of corals and can deplete the reef if populations are too high.

  4. So What Do We Do? Come up with some possible solutions to address the following human impacts on aquatic ecosystems. Invasive Species Urban Runoff - pollution Overharvesting of Resources Eutrophication! Habitat Fragmentation/Destruction

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