benthos

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benthos

(bĕn′thŏs′)
n.
The collection of organisms living on or in the bottom of a body of water.

ben′thic (-thĭk), ben·thon′ic (bĕn-thŏn′ĭk) adj.

benthos

the organisms that live on the bed of the sea or a lake, ranging from the high-water mark to the deepest trenches. Benthic organisms are subdivided into littoral (to 40 m deep), sublittoral (41–200 m), bathyal (200–4000 m), abyssal (4001–6000 m) and hadal (>6000 m). See SEA ZONATION.

benthos

bottom of the sea or other body of water; said of cyanobacteria which grow on submerged rocks in alpine lakes and cause sudden death in cattle at pasture during summer months.
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