demersal - fish that live on or near the ocean bottom. They are often called benthic fish, groundfish, or bottom fish.
development - (1) a developed tract of land (with houses or structures); (2) the act, process or result of developing.
demersal Applied to eggs which are heavy and sink to the bottom of a stream or other body of water.
demineralization A treatment process which removes dissolved minerals (salts) from water.
de minimus Not enough to be considered.
Demersal
Living in close relation with the bottom and depending on it. Cods, groupers, crabs, and lobsters are demersal resources.
Ecosystem ...
D demersal
Definition (english only)
Species of fish that live on, or in close proximity to, the seabed. The term also applies to fishing gear that is worked on the seabed.
 See also: Water, Environment, Air, Environmental, Conservation
  
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