Loddas utbredelse i Barentshavet i forhold til temperaturfeltet i perioden 1974-1982

Abstract

The variations in the distribution and abundance of the different age groups of capelin in the Barents Sea were studied in relation to temperature variations in the period 1974-1982. The data were collected on yearly cruises in September- October . During the period 1976-1980 a pronounced south- and westward displacement of all age groups was observed. The displacement coincides with decreasing water temperatures in the region, and it is shown that the older age groups, 2, 3 and 4 years old fish, inhabited significantly warmer water masses in the years 1980-1982 than previously. The mean weight of the fish, especially for the 2 years old, changed correspondingly, as it was higher in 1980-1982 than previously in the period.