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Flowing-Water Ecosystems

Flowing-Water Ecosystems. Rivers, streams, creeks Plenty of dissolved oxygen Turtles and beavers make home down stream. Standing-Water Ecosystems. Lakes and Ponds Plankton : general term for the tiny, free-floating organisms that live in both freshwater and saltwater.

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Flowing-Water Ecosystems

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  1. Flowing-Water Ecosystems • Rivers, streams, creeks • Plenty of dissolved oxygen • Turtles and beavers make home down stream

  2. Standing-Water Ecosystems • Lakes and Ponds • Plankton: general term for the tiny, free-floating organisms that live in both freshwater and saltwater. • Phytoplankton: unicellular algae • Zooplankton: feed on phytoplankton

  3. Freshwater wetlands • An ecosystem where water covers the soil or is present at or near the surface for at least part of the year. • Bogs • Marshes • Swamps

  4. Estuaries • Where the river meets the sea • Freshwater and saltwater mixed • Detritus: tiny pieces of organic material that provide for organisms at the base of some aquatic food webs.

  5. Salt Marshes • Temperate-zone estuaries • Salt-tolerant grasses above low-tide line • Sea grasses under water

  6. Mangrove Swamps • Tropical coastal wetlands • Found in Southern Florida and Hawaii • Several species of salt-tolerant trees

  7. Marine Zones • Salt water • Photic zone: where sunlight can reach • Aphotic zone: sunlight cannot reach. • Divided into intertidal, coastal, and open ocean zones.

  8. Intertidal Zone • Zonation: the prominent horizontal banding of organisms that live in a particular habitat.

  9. Coastal Ocean • From the outer edge of the intertidal zone to the outer edge of the continental shelf. • Kelp forests

  10. Coral Reefs • Hard calcium carbonate skeletons make up their primary structure. • Plants or animals?????????

  11. Open Ocean • More than 90% of Earth’s ocean • Examples of animals that occupy this zone:

  12. Benthic Zone • The ocean FLOOR. • Dependent on detritus

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