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Aquatic Ecosystems

Learn about coastal wetlands, such as estuaries, salt marshes, and mangrove swamps, as well as coral reefs and oceans. Discover the characteristics of these ecosystems and the human impacts they face.

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Aquatic Ecosystems

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  1. 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.

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

  3. 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)

  4. New Jersey andNew York Estuaries

  5. New Jersey and New York Estuaries

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

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

  8. 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

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