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demersal

   Also found in: Encyclopedia 0.06 sec.
de·mer·sal  (d-mûrsl)
adj.
1. Dwelling at or near the bottom of a body of water: a demersal fish.
2. Sinking to or deposited near the bottom of a body of water: demersal fish eggs.
[From Latin dmersus, past participle of dmergere, to sink : d-, de- + mergere, to sink.]
demersal [dɪˈmɜːsəl]
adj
(Life Sciences & Allied Applications / Biology) living or occurring on the bottom of a sea or a lake demersal fish
[from Latin dēmersus submerged (from dēmergere to plunge into, from mergere to dip) + -al1]


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Although tomcod eggs are demersal, yolk-sac larvae and older feeding larvae regularly ascend the water column and would be carried downstream.
Evidence of spatially extensive resistance to PCBs in an anadromous ... by Wirgin, Isaac / Environmental Health Perspectives
How many of the following can you define: epifauna, sesile, crevices, infauna, substrate, planktonic, lecithotrophic, demersal, foraminiferan protozoans, macrofauna, meiofauna, abyssal plain, continental shelf, oscillate, flotsam and jetsam.
A language-science bridge: ESL for marine science. (Language Teaching ... by Nichols-Pecceu, Martha / Academic Exchange Quarterly
One of the more detailed follow-ups to the Felmersham study came from David Barrat, now of the Demersal Fisheries Program in Canberra, Australia.
Social Cats by MILIUS, SUSAN / Science News
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