AP Environmental Science Flash Cards: Chapter 8
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Created by:
MmhmmSoGewd on May 3, 2012
Description:
"Aquatic Biodiversity"
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14 terms
Terms | Definitions |
|---|---|
 Aquatic Life Zones | Pretty self explanatory, it's just places (or biomes) where the aquatic life dwell. |
| Nekton | All organisms that swim actively in open water, independent of currents |
| Benthos | Organisms that live attached to or near the ocean floor |
| Euphotic Zone | Upper layer of a body of water through which sunlight can penetrate and support photosynthesis. |
| Turbidity | Muddiness created by stirring up sediment or having foreign particles suspended (High turbidity, dirty water. Low turbidity, clean water). |
| Coastal Zone | The warm, nutrient-rich, shallow water that extends from the high-tide mark on land to the gently sloping, shallow ledge of the continental shelf |
| Intertidal Zone | The portion of the shoreline that lies between the high and low tide lines |
| Open Sea | The vast volume of the ocean that lies beyond the continental shelf |
| Oligotrophic Lake | Aquatic environment (usually a lake) that contains scarce amounts of nutrients and organic matter |
| Eutrophic Lake | Lake with a large or excessive supply of plant nutrients, mostly nitrates and phosphates. |
| Mesotrophic Lake | A lake whose nutrient levels often fall somewhere in between the two extremes. |
| Inland Wetland | Land away from the coast, such as a swamp, marsh, or bog, that is covered all or part of the time with fresh water. |
| Littoral Zone | A shallow zone in a freshwater habitat where light reaches the bottom and nurtures plants |
| Limnetic Zone | The area in a freshwater habitat that is away from the shore but still close to the surface |
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