Blar i Published in cooperation with others på forfatter "Ramberg, Kjell"
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In situ determination of bottom trawl ground gear contact
Engås, Arill; Ona, Egil; Ramberg, Kjell (ICES CM documents, Working paper, 2001)Exact definition of towed distance with proper ground gear contact is an essential parameter in bottom trawl swept area estimates of fish abundance. Errors in this key parameter may lead to a first order bias in abundance ...