Pelagic marine feeding of Arctic charr and sea trout

Abstract

In a fjord in northern Norway, both immature and maturing individuals (170–500 mm fork length) of anadromous Arctic charr Salvelinus alpinus and anadromous brown trout (sea trout)Salmo trutta were captured up to 5000 m offshore. Both species had a high feeding intensity and an almost exclusive piscivorous diet, with herring Clupea harengus as the dominant prey, an apparently opportunistic response to a high density of small‐sized herring in the pelagic zone.