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Freshwater ecosystems are a subset of Earth's aquatic ecosystems that include the biological communities inhabiting freshwater waterbodies such as lakes, ponds, rivers, streams, springs, bogs, and wetlands. [1] They can be contrasted with marine ecosystems, which have a much higher salinity. Freshwater habitats can be classified by different ...
Lakes and ponds experience much of the same pollution as rivers and streams, but are polluted at a quicker rate due to slower moving waters, no water flow outlets, and amount of water. [16] Standing water circulates much less than moving waters, with the deeper water layers only moving during seasonal changes twice a year. [16]
Connectivity between streams and lakes relates to the landscape drainage density, lake surface area and lake shape. [15] Other types of aquatic systems which fall within the study of limnology are estuaries. Estuaries are bodies of water classified by the interaction of a river and the ocean or sea. [13]
The technical distinction between a pond and a lake has not been universally standardized. Limnologists and freshwater biologists have proposed formal definitions for pond, in part to include 'bodies of water where light penetrates to the bottom of the waterbody', 'bodies of water shallow enough for rooted water plants to grow throughout', and 'bodies of water which lack wave action on the ...
This stream operating together with its environment can be thought of as forming a river ecosystem. River ecosystems are flowing waters that drain the landscape, and include the biotic (living) interactions amongst plants, animals and micro-organisms, as well as abiotic (nonliving) physical and chemical interactions of its many parts.
Artificial lake or artificial pond: see reservoir (impoundment). Barachois: A lagoon separated from the ocean by a sand bar. Canada Basin: Bay: An area of water bordered by land on three sides, similar to, but smaller than a gulf. Bayou: A slow-moving stream or a marshy lake. Southern US Beck (stream) or Beck (gill) A small stream (esp. with a ...
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The lake sturgeon is near the southern end of its range in Arkansas, more commonly found in the Upper Midwest. [86] Pallid and shovelnose sturgeon live in large, turbid rivers of the Mississippi Alluvial Plain , including the lower Arkansas, Mississippi, and lower White rivers downstream of impoundments.