Aquatic Ecosystems Objectives:

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Presentation transcript:

Aquatic Ecosystems Objectives: Describe the characteristics of coastal wetlands, mangroves, salt marshes, coral reefs and oceans. Describe human impacts on each of the above ecosystems.

Freshwater Ecosystems Coastal Wetland/Estuary Salt marshes Mangrove Swamps Shores Coral Reefs Oceans

Coastal Wetlands/Estuaries Estuary – an area in which fresh water from a river mixes with salt water from the ocean Absorb excess rain and provides flood control Filter out pollutants and sediments Provide reaction like boating, fishing, hunting Provide nesting grounds and protection to juveniles Provide humans with food (shellfish and fish) and jobs (shipping and trade)

New Jersey and New York Estuaries

New Jersey and New York Estuaries

Local Estuary Life Oysters Falcons Eelgrass Gulls Eels Horseshoe crabs Ducks Jellyfish Cord grass Striped bass Harbor seals

Threats to Estuaries Residential and Commercial Development Drawing of Manhattan Island 1600’s Manhattan Island today

Threats to Estuaries Pollution / Sewage Over-harvesting of fish/shellfish Dredging – removing sediment from the bottom of estuaries creates deeper water so ships can navigate, but has destroyed grass beds that were the a food source Invasive Species – animals that do not belong in this habitat are accidentally released