Undertakes spawning migrations during the summer into deeper waters, particularly near Iceland. Females mature at about 23.6 in (60 cm), males at about 15.8 in (40 cm). Fecundity estimates range from 12,000 to 35,500 eggs per female. In
some areas, may spawn year-round. The eggs are pelagic, spherical, and 0.091-0.095 in (2.3-2.4 mm) in diameter. Their shell is honeycombed and they contain a single oil globule. The larva has been illustrated by Merrett (1978).
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