freshwater ecosystem
101Stream bed — The bed of this stream is armored with rocks, some very rounded (having had a longer life in the stream) and some not. A stream bed is the channel bottom of a stream, river or creek; the physical confine of the normal water flow. The lateral… …
102Aquatic insects — A water beetle A whirligig beetle Aquatic insects live some portion of their life cycle in the water. They feed in the same way …
103Lake stratification — Lake zones Littoral zone Limnetic zone Profundal zone Bent …
104Overpopulation — Graph of human population from 10,000 BC–2000 AD showing the unprecedented population growth since the 19th century Overpopulation is a condition where an organism s numbers exceed the carrying capacity of its habitat. The term often refers to… …
105Neuston — Two water striders, common neustons Neuston is the collective term for the organisms that float on the top of water (epineuston) or live right under the surface (hyponeuston). Neustons are made up of some species of fish (see flying fish[1] …
106David Schindler — David William Schindler OC, D.Phil., FRSC, FRS (born August 3, 1940) is an American/Canadian limnologist. He holds the Killam Memorial Chair and is Professor of Ecology in the Department of Biological Sciences at the University of Alberta in… …
107Plankton — For other uses, see Plankton (disambiguation). Photomontage of planktonic organisms Plankton (singular plankter) are any drifting organisms (plants …
108Zooplankton — A copepod (Calanoida sp.) Zooplankton  / …
109Upwelling — If the wind in blows parallel to the coast in the southern hemisphere (such as along the coast of Peru, where the wind blows North), then Ekman transport produces a net movement of surface water 90 degrees to the left. This can result in coastal… …
110Ramsar Convention — RAMSAR Logo The Ramsar Convention (The Convention on Wetlands of International Importance, especially as Waterfowl Habitat) is an international treaty for the conservation and sustainable utilization of wetlands,[1] i.e., to stem the progressive… …
