demersal
- adjective
- /dɪˈmɜr.səl/
- Specialized
:
demersal
- Fishermen often use specialized nets to catch demersal fish, which rest on or near the seabed.
- demersal fish
- demersal trawl
Examples
-
Many demersal fish, like cod and halibut, live near the ocean floor where they find food.
-
Assessment of demersal pollock on the EBS shelf and slope is conducted within the broader objectives of a multi-species bottom trawl survey designed to assess the condition of stocks of several species.
Academic text (1994) -
Based on results of demersal trawl surveys and two age-structured models.
Academic text (1992) -
Prior to 1991, there was also an experimental demersal longline fishery.
Academic text (1994) -
An alternative approach would involve using acoustic measurements to investigate and document the availability of pollock to demersal gear.
Academic text (1994) -
In the offshore demersal trawl fishery, seals appear to cause few problems technically or financially.
Academic text (1994) -
During 1992, observers made nine demersal offshore trawling trips on commercial vessels, all but one of which were on stem trawlers (Table 1).
Academic text (1994) -
In this framework, the extent of the continental shelf can affect the structure of the assemblages, providing habitat for coastal and demersal fish species and allowing a spatial separation in the case of wider spaces suitable for these species.
Academic text (2018) -
If the demersal trawl gear that was introduced in 1982 sampled age-1 fish with greater efficiency than before, this could partially explain the unusually high proportion of age-1 fish observed by the EIMWT method in 1979.
Academic text (1994) -
The research focused on studying demersal species that inhabit the lake's bottom ecosystem.
Synonyms
1
6.1
An animal that lives on the bottom of the sea or ocean, for example a fish
Living on the bottom of seas and lakes or just above it
On the bottom of a sea or lake
Surface Forms
Etymology
The word demersal comes from parts meaning 'down' (de-) and 'to sink' (mergere), the same root you find in submerge and immerse. So demersal describes animals, especially fish, that live 'down' near the bottom of the sea or a lake.