Kolmuleundersøkelser i Norskehavet i april-mai 1971

Abstract

On a cruise with R/V "G. O. Sars" from Z4 April to 9 May dense concentrations of blue whiting were found between the Faroes and Shetland and in the Norwegian Deep east of Tampen. Further north the fish were scattered. A preliminary estimate of the blue whiting population within the area covered, was about 2 * 10^10 fish. The dense concentrations of blue whiting between the Faroes and Shetland were on a later cruise from 28 May to 31 May found further north and northwest. A comparison of the maturity stages of the fish caught in the different areas indicated that this movement was a migration from the spawning area.