Effect of tow duration on catch rate and size composition of Northern shrimp (Pandalus borealis) and Greenland halibut (Reinhardtius hippoglossoides) in the West Greenland Bottom Trawl Survey

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Abstract

The standard towing time in the annual West Greenland Bottom Trawl Survey for shrimp and fish has initially been 60min. Shorter tow durations have been gradually introduced over time and a mixture of 30 and 15min tows have been used in the recent years. From the surveys conducted since 1999, 15 and 30min tows have been analysed to examine whether a reduction of tow duration to 15min influences the catch per swept area (CPUE), its precision and the size composition of Northern shrimp and Greenland halibut. For both species, neither total biomass density nor numerical densities of different size groups differed significantly (p
Original languageEnglish
JournalFisheries Research
Volume78
Issue number2-3
Pages (from-to)276-285
ISSN0165-7836
DOIs
Publication statusPublished - 2006
Externally publishedYes

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