Persistent pollutants in a salmon population (Salmo salar) of the southern Baltic Sea

摘要: Persistent pollutants in an Atlantic salmon (Salmo salar) population spawning a river of southern Sweden were investigated. The was characterized by high growth rate. Some males reached 20-30 kg after 3 to 4 years the sea. fat content migrating varied one order magnitude and most significant correlate pollutant concentrations. No relationships recorded between gender, age (weight, length), year at sea, or different measures condition. reasons for this may be evolutionary strategies maximizing reproductive output; male enter as small grilse spawn opportunely, migrate larger size, when they can hold territories river. Females have greater more uniform spend energy on gonadal products. varying individual fish also attributed foraging areas Baltic thereby migration distances well strategies. When levels normalized content, other factors such length) shown important uptake; older had higher than younger ones (Less)