Size and age of maturity of Atlantic salmon correlate with the North Atlantic Oscillation Index (NAOI)

Sea-age at maturity of Atlantic salmon Salmo salar decreased with increasing values of the seasonal NAOI from February to April. Body mass increment from smolts to adults of one-sea-winter Atlantic salmon increased with increasing NAOI in May at the time when the juveniles moved to sea. (C) 2004 The Fisheries Society of the British Isles.