Life‐history variation among local populations of Atlantic cod from the Norwegian Skagerrak coast

Abstract

Small‐scale spatial variation in life history was found among genetically distinct local populations of Atlantic cod Gadus morhua from the Norwegian Skagerrak coast. Among populations, age at 50% maturity varied from 2·6 to 3·8 years, total ( L T ) length at 50% maturity from 35 to 60 cm, annual survival from 33 to 64%, mean L T at age 4 years from 43 to 63 cm, and mean backcalculated L T at age 1 year from 8 to 12 cm.