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Aquatic Biomes

Aquatic Biomes. 3/23/12. What are the freshwater (Oligotrophic) biomes?. Less than 1% salt concentration or 0.5-5psu salt concentration. 1) Raparian = rivers or moving water 2) Lakes and Ponds = still bodies of water 3) Wetlands = saturated land that is covered mostly in water.

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Aquatic Biomes

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  1. Aquatic Biomes 3/23/12

  2. What are the freshwater (Oligotrophic) biomes? • Less than 1% salt concentration or 0.5-5psu salt concentration. • 1)Raparian= rivers or moving water • 2) Lakes and Ponds = still bodies of water • 3) Wetlands = saturated land that is covered mostly in water

  3. What ecosystem services (economic benefits) do wetlands provide? • 1) Prevention of flooding/storm mitigation • 2) source of fishing, canoeing, bird watching and recreational activities

  4. What ecological benefits do wetlands provide? • Habitat for wildlife – very high biodiversity • Prevent nutrient and toxic chemical build up (phytoremediation)

  5. What are the 3 Marine Biomes? • 1) Open Ocean Marine biome = all biomes in the open ocean (i.e. deep water/pelagic realm or in abyssal trenches) • 2) Coral Reefs = found on the continental shelf, in the euphotic zone (well lighted). • 3) Estuaries = transition area where salt and fresh water mix

  6. What are the two basic realms? • 1) Pelagic = open water • 2) Benthic = sea bottom

  7. What zones is the Pelagic realm divided into horizontally? • 1) Neritic zone = encompasses water that overlies the continental shelves. • 2) Oceanic zone = water over the open waters.

  8. What are the vertical zones of the Pelagic realm? • 1) Euphotic Zone = well lighted zone, highest NPP • Also known as epipelagic zone • 2) disphotic zone = area that is light enough for vision, but not enough for photosynthesis • 3) aphotic zone = permenantly dark zone.

  9. What areas is the aphotic zone divided into? • 1) mesopelagic • 2) bathypelagic • 3) abyssalpelagic • 4) hadalpelagic

  10. What is the benthic zone beneath the continental shelf called? • The sublittoral or shelf • High biodiversity • High Net Primary Productivity

  11. What is the intertidal/littoral zone? • Shore area lying between the extremes of high and low tide.

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