Synopsis
A total of 3068 female spiny dogfish were examined to determine the age and length at maturity. The median age at maturity for females was 35.5 years with 95% confidence limits between 35.0 and 35.9 years. It was found that slower growing dogfish tended to mature at a smaller size. A deterministic model incorporating fecundity, growth and reproduction was used to examine the reproductive style of spiny dogfish. The age at maturity reported corresponds to the level that theoretically maximizes lifetime reproductive output for a cohort.
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Saunders, M.W., McFarlane, G.A. Age and length at maturity of the female spiny dogfish,Squalus acanthias, in the Strait of Georgia, British Columbia, Canada. Environ Biol Fish 38, 49–57 (1993). https://doi.org/10.1007/BF00842903
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DOI: https://doi.org/10.1007/BF00842903