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24 Cards in this Set
- Front
- Back
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estuaries
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a semi-enclosed area where fresh water and sea water are mixed
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pleistocene
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geological period that began 2 million years ago and during which sea levels fluctuated during several ice ages
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plate tectonics
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the process in which large sections of the earth's crust moves about
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passive continental margin
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one that is on the "trailing edge" of the continental and therefore has little geological activity
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active continental margine
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one that is colliding with another techtonic plate and therefore has a lot of geological activity
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fjords
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an estuary that is formed in a deep valley by a retreating glacier
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salt wedge
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a layer of denser, saltier seawater that flows along the bottom in estuaries
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diurnal tides
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a tidal pattern with one high and one low tide each day
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semidurnal tides
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a tidal pattern with two high and two low tides each day
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mixed semidiurnal tides
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a tidal pattern in which two successive high tides are of different heights
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tidal bore
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a steep wave generated as high tides move up some estuaries and rivers
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interstitial waters
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the water between sediment particles
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anoxic
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devoid of oxygen
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euryhaline
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species that can tolerate high ranges of salinity
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stenohaline
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species that can tolerate a narrow range of changes in salinity
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brackish water
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water of intermediate salinity
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osmosis
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the movement of water from high to low [ ] across a membrane
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active transport
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the transfer of substance across membranes by a cell against a concentration gradient
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chemosynthetic bacteria
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autotrophic bacteria that use energy contained in inorganic compounds rather than sunlight to make organic matter
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resource partitioning
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the sharing of a resource by two or more species to avoid competition
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mangroves
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flowering land plants adapted to surviving in the intertidal
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mangals
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shellfish reef
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successive generations of oysters growing on the shells of their predecessor
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outwelling
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surplus detritus is exported to the open ocean the neighboring ecosystems
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