Definition of demersal in English:

demersal

adjective dɪˈməːs(ə)ldəˈmərsəl

(chiefly of fish) living close to the floor of the sea or a lake.
（尤指鱼）居于水底的。常与PELAGIC 相对
demersal fish
Often contrasted with pelagic
Example sentencesExamples
- Groundfish are demersal fish species; such as cod, halibut, haddock, and pollock, that feed at or near the ocean floor.
- In the winter they will fish for the demersal species and due to their small salmon quota it is no longer a major fishing option in the summer months.
- A small beginning has been made to developing the theory of metapopulations of demersal fishes, frequently in the context of reef fish management.
- These fish have demersal eggs, but do not bury the eggs and do not attach them to specific substrates.
- The starkest fact highlighting the plight of fishing is that the amount of adult demersal fish - those living on the seabed - has fallen by 90 per cent since the early 1970s.

Origin

Late 19th century: from Latin demersus (past participle of demergere 'submerge, sink', from de- 'down' + mergere 'plunge') + -al.

Definition of demersal in US English:

demersal

adjectivedəˈmərsəl

(chiefly of fish) living close to the floor of the sea or a lake.
（尤指鱼）居于水底的。常与PELAGIC 相对
demersal fish
Often contrasted with pelagic
Example sentencesExamples
- The starkest fact highlighting the plight of fishing is that the amount of adult demersal fish - those living on the seabed - has fallen by 90 per cent since the early 1970s.
- A small beginning has been made to developing the theory of metapopulations of demersal fishes, frequently in the context of reef fish management.
- Groundfish are demersal fish species; such as cod, halibut, haddock, and pollock, that feed at or near the ocean floor.
- In the winter they will fish for the demersal species and due to their small salmon quota it is no longer a major fishing option in the summer months.
- These fish have demersal eggs, but do not bury the eggs and do not attach them to specific substrates.

Origin

Late 19th century: from Latin demersus (past participle of demergere ‘submerge, sink’, from de- ‘down’ + mergere ‘plunge’) + -al.

单词	demersal
释义	Definition of demersal in English: demersal adjective dɪˈməːs(ə)ldəˈmərsəl (chiefly of fish) living close to the floor of the sea or a lake. （尤指鱼）居于水底的。常与PELAGIC 相对 demersal fish Often contrasted with pelagic Example sentencesExamples Groundfish are demersal fish species; such as cod, halibut, haddock, and pollock, that feed at or near the ocean floor. In the winter they will fish for the demersal species and due to their small salmon quota it is no longer a major fishing option in the summer months. A small beginning has been made to developing the theory of metapopulations of demersal fishes, frequently in the context of reef fish management. These fish have demersal eggs, but do not bury the eggs and do not attach them to specific substrates. The starkest fact highlighting the plight of fishing is that the amount of adult demersal fish - those living on the seabed - has fallen by 90 per cent since the early 1970s. Origin Late 19th century: from Latin demersus (past participle of demergere 'submerge, sink', from de- 'down' + mergere 'plunge') + -al. Definition of demersal in US English: demersal adjectivedəˈmərsəl (chiefly of fish) living close to the floor of the sea or a lake. （尤指鱼）居于水底的。常与PELAGIC 相对 demersal fish Often contrasted with pelagic Example sentencesExamples The starkest fact highlighting the plight of fishing is that the amount of adult demersal fish - those living on the seabed - has fallen by 90 per cent since the early 1970s. A small beginning has been made to developing the theory of metapopulations of demersal fishes, frequently in the context of reef fish management. Groundfish are demersal fish species; such as cod, halibut, haddock, and pollock, that feed at or near the ocean floor. In the winter they will fish for the demersal species and due to their small salmon quota it is no longer a major fishing option in the summer months. These fish have demersal eggs, but do not bury the eggs and do not attach them to specific substrates. Origin Late 19th century: from Latin demersus (past participle of demergere ‘submerge, sink’, from de- ‘down’ + mergere ‘plunge’) + -al.
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