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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.
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Olsen et al. (2004) studied this question.
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