The influence of temperature on some fish population parameters in the Barents Sea

Abstract

Rich year-classes of cod Gadus morhua occur only in years with relatively high temperature on the spawning grounds and the areas of their distribution during the first half-year of their lives. Feeding distributions of cod, haddock Melanogrammus aeglefinus and capelin Mallotus villosus depend on the climatic conditions in the Barents Sea with more easterly and northerly distributions noted in warm years than in cold ones. Climatic fluctuations also influence the plankton production and thereby the food conditions for all plankton feeders. -from Author