The demersal zone is the part of the sea or ocean (or deep lake) comprising the water column that is near to (and is significantly affected by) the seabed and the benthos. The demersal zone is just above the benthic zone and forms a layer of the larger profundal zone. Demersal fish.
Demersal fish live and feed on or near the bottom of seas or lakes (the demersal zone). They occupy the sea floors and lake beds, which usually consist of mud, sand, gravel or rocks. In coastal waters they are found on or near the continental shelf...
Define demersal. demersal synonyms, demersal pronunciation, demersal translation, English dictionary definition of demersal. adj.
démersal — ● démersal, démersale, démersaux adjectif (anglais demersal, du latin demersus, de demergere, plonger) Se
demersal. Английский - Русский - demersal. глубоководный; донный; погруженный в воду; подводный.
From Latin demersus, past participle of demergere (“to sink”); compare demersed. demersal (comparative more demersal, superlative most demersal). (biology) That lives near the bottom of a body of water.
Sinking to or deposited near the bottom of a body of water: demersal fish eggs.
With demersal fish the sand is usually pumped out of the mouth through the gill slit. Most demersal fish exhibit a flat ventral region so as to more easily rest their body on the substrate.
This, as a consequence, leads to a decline in the productivity of shrimping grounds and other demersal fisheries.
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