4 4 aquatic ecosystems(biology)

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4 4 aquatic ecosystems(biology)

  1. 1. 4-4 Aquatic Ecosystems<br />
  2. 2. Plankton<br />Tiny, free-floating organisms that occur in aquatic environments<br />
  3. 3. phytoplankton<br />Population of algae and other small, photosynthetic organisms found near the surface of the ocean and forming part of plankton.<br />
  4. 4. zooplankton<br />Tiny animals that form part of the plankton.<br />
  5. 5. wetland<br />Ecosystem in which water either covers the soil or is present at or near the surface of the soil for at least part of the year.<br />
  6. 6. estuary<br />Wetlands formed where rivers meet the ocean.<br />
  7. 7. detritus<br />Particles of organic material that provide food for organisms at the base of an estuary’s food web<br />
  8. 8. Salt Marsh<br />Temperature-zone estuary dominated by salt-tolerant grasses above the low-tide line and by seagrasses under water.<br />
  9. 9. Mangrove swamp<br />Coastal wetland dominated by mangroves, salt-tolerated woody plants.<br />
  10. 10. Photic zone<br />Well-lit upper layer of the oceans<br />
  11. 11. Aphotic zone<br />Permanently dark layer of the oceans below the photic zone<br />
  12. 12. zonation<br />Prominent horizontal banding of organisms that live in a particular habitat<br />
  13. 13. Coastal ocean<br />Marine zone that extends from the low-tide mark to the end of the continental shelf.<br />
  14. 14. Kelp forest<br />Coastal ocean community named for its dominant organism-kelp, a giant brown alga<br />
  15. 15. Coral reef<br />Diverse and productive environment named for the coral animals that make up its primary structure.<br />
  16. 16. benthos<br />Organisms that live attached to or near the ocean floor<br />
  17. 17. Key concept<br />Aquatic ecosystems are determined primarily by the depth, flow, temperature, and chemistry of the overlying water.<br />
  18. 18. Key concept<br />Freshwater ecosystems can be divided into two main types: flowing-water ecosystems and standing-water ecosystems.<br />
  19. 19. Key Concept<br />In addition to the division between the photic and aphotic zones, marine biologists divide the ocean into zones based on the depth and distance from the shore: the intertidal zone, the coastal ocean, and the open ocean.<br />

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