Trawl designs and techniques.pdf (422.0Kb)

During the 0-group surveys in 1992 and 1993 comparative trawlings were conducted with the standard trawl and two versions of the experimental trawl (one version each year)

A multisampling device was used for separating catches in a survey for three different time periods: the time before the trawl had the right geometry, when sampling, and after

Abstract: We have used “MultiSampler”, a multiple opening-closing device that allows ob- taining several samples from a single trawl haul, during the trawl-acoustic survey targeting

When surveying demersal fish with a wide and variable vertical distribution, it is desirable to combine information from a bottom trawl survey with the information from a

a) trawl indices and length distributions of Greenland halibut caught during stratified trawl surveys along the slope of the continental shelf in the Svalbard

Relations between seasonal migrations and fat content in Norwegian spring spawning herring (Clupea harengus L.). Trawl designs and techniques used by norwegian

The standard sarnpling trawl used during the annual Norwegian bottom trawl survey in the Barents Sea in February, has been shown to have a length dependent

When we initiated this test trial, we knew that an extra bag attached to Alfredo Trawl and Campelen trawl with Tromsø – rigging collected higher numbers and wider size distribution