Growth of the Baltic herring as a function of stock density and food resources
Дата
Авторы
Horbowy,J.
Journal Title
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Издатель
Pensoft Publishers
Аннотация
Описание
A mathematical model has been used to describe growth of coastal herring caught in the Baltic Sea in the Subdivision 26 in 1984-1995. The ratio of food resources, represented by biomass of Mysis mixta, to stock density explained about 65-83% of growth variation. It is argued that the deteriorating food conditions for herring are one of the basic causes of high decrease of herring weight-at-age.