Browsing Brage IMR by Author "West, Charles W."

Now showing items 1-4 of 4

    • Day / night variation in fish directivity in the trawl opening 

      Huse, Ingvar; Aglen, Asgeir; Engås, Arill; Godø, Olav Rune; West, Charles W. (ICES CM Documents;1994/B:18, Working paper, 1994)
      Still photographs of fish in the mouth area of a bottom trawl were taken by a downwards-oriented automated strobe camera mounted near the headrope. Fish angles relative to the towing direction were measured. Fish were ...

    • Development of a species-selective trawl for demersal gadoid fisheries 

      Engås, Arill; West, Charles W. (ICES CM Documents;1995/B+G+H+J+K:1, Working paper, 1995)
      An experiment was carried out to test a prototype species-selective bottom trawl for separating cod from haddock, secondarily saithe, in the Norwegian commercial roundfish fisheries. A sorting system incorporating a ...

    • Multisampler - a new tool for use in sampling trawls 

      Skeide, Roar L.; West, Charles W. (PINRO-IMR Symposium, Conference object, 1997)
      The MultiSampler is a system to be mounted in sampling trawls to give better estimates and knowledge about fish stocks.The system is remotely controlled via a hydroacoustic link from the vcssel. It consists of a rigid ...

    • Preliminary Tests of a Shrimp-fish Separator Section for Use in Shrimp Trawls 

      West, Charles W.; Valdemarsen, John Willy; Isaksen, Bjørnar (ICES CM Documents;1984/B:12, Working paper, 1984)
      A prototype shrimp-fish separator to be installed between the body and codend of a shrimp trawl was designed and constructed. The separator uses large square meshes to provide an escape path for fish, while funnels ...