Vertical entrance into a trawl of Barents Sea gadoids as studied with a two level fish trawl

Catch figures of different demersal species(cod, haddock, saithe etc.) in the cod-ends of a two level trawl were examined using variable height of the separating panel (0.5, 0.75, 1.0 and 1.5 m). Cod enters the trawl mainly in the lower part of trawl while haddock, and especially saithe, enter the t...

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Bibliographic Details
Main Authors: Valdemarsen, John Willy, Engås, Arill, Isaksen, Bjørnar
Format: Report
Language:English
Published: ICES 1985
Subjects:
trawl
trål
gear experiments
redskapsforsøk
VDP::Agriculture and fishery disciplines: 900::Fisheries science: 920::Catch: 925
VDP::Agriculture and fishery disciplines: 900::Fisheries science: 920::Fisheries technology: 924
Barents Sea
Online Access:http://hdl.handle.net/11250/103917
Description
Summary:Catch figures of different demersal species(cod, haddock, saithe etc.) in the cod-ends of a two level trawl were examined using variable height of the separating panel (0.5, 0.75, 1.0 and 1.5 m). Cod enters the trawl mainly in the lower part of trawl while haddock, and especially saithe, enter the trawl at higher levels. Diurnal and size dependant effects were recorded.

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