demersal


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demersal

[də′mər·səl]
(biology)
Living at or near the bottom of the sea.
References in periodicals archive ?
Based on the annual number of offshore demersal hauls in each area, the total number of drownings would be 498 per year, possibly in the ratio of 332 females to 166 males, an overall average of 1.
Commenting on preparations for the demersal ban, Fisheries Minister George Eustice said:If we want a profitable fishing industry and thriving coastal communities in the future it is vital that we fish sustainably today.
2005) examined geographic patterns of demersal ichthyofauna in the Aleutian Islands and found that smaller Pacific ocean perch ([less than or equal to] 25 cm, Reuter (2)) inhabited shallower water (<150 m) than that inhabited by larger individuals, and they further suggested that large catches (>100 kg/ha) could be affiliated with zones of increased productivity and prey availability.
Pauly D Theory and management of tropical multi species stocks: a review with emphasis on Southeast Asian demersal fisheries ICLARM stud Rev1982; 11:35p.
The development process will necessarily include estimating shrimp catch rates with other experimental footropes under actual commercial fishing conditions, as well as estimating invertebrate disturbance rates and the effect that different footropes have on the bycatch of small demersal fishes, another important issue for this fishery (Hannah et al.
The contraction was mainly due to a decline in the number of bed nights and room nights sold while the poor performance in the fishing and fish processing sub-sector was underpinned by the lower landings recorded for page Demersal and Midwater fisheries.
For example, it was assumed that demersal longline seabird bycatch per species in a 5 degree square/quarter was the same regardless of the origin of the fishing fleet.
Of those commercial fishes, the goatfish family (Mullidea) is commercially important demersal fish group throughout their distribution around the world [42].
A demersal species, it has yet to be taken in either of the four completed summer regional otter trawl surveys conducted by the Southern California Coastal Water Research Project (E.
Neptune could normally only cross this at high tide or after very heavy rain, which is why Marty had it racing along the bottom like a demersal eel so that, at the exact moment, he could race upwards and take a flying leap out of the water and over the boom.
Diet composition and food of demersal and pelagic marine fishes from Terengganu water, east coast of Peninsular Malaysia.
The Commission believes this will directly reduce overcapacity, citing as examples Denmark, where tradable concessions had "slimmed down" the demersal fleet by 30%, and Norway, where the pelagic fleet had been reduced by 50%.