benthos

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Related to benthonic: planktonic, Benthic zone, nektonic

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.
References in periodicals archive ?
After a 2-year integrated decontamination work in the lake zones where the content of oil in soil did not exceed 3,3 g/kg bottom, sediments started to be inhabited by benthonic organisms.
2]) of benthonic invertebrates that are potential prey for shorebirds, in samples obtained at three sites on mudflats in Estero de Punta Banda, Baja California, in Winter and Spring 2000.
The comprises bioclast of this subfacies such as porcelaneous benthonic foraminifera and pelloid is indicate the deposition in shallow marine.
The main allochems of this microfacies are benthonic foraminifera and Nummulites.
A total of thirty-five benthonic foraminiferal species, belonging to twenty-eight genera were recorded from the Albian to Coniacian exposed sections in the study area (Tables 5 and 6).
The benthonic associations have low diversity and are characterized by abundant agglutinated foraminiferids, all of which have calcareous rather than siliceous wall compositions.
So that Benthonic are the most abundant among the sediments with size of small sand to average size.
The name 'dictyonema' was given after the benthonic root-bearing Dictyonema flabelliforme, which turns afterward to a planktonic nema-bearing Rhabdinopora flabelliformis [1].