Journal Article

Age and growth of redfish (<i>Sebastes marinus</i>, <i>S. mentella</i>, and <i>S. fasciatus</i>) on the Flemish Cap (Northwest Atlantic)

Fran Saborido-Rey, Dolores Garabana and Santiago Cerviño

in ICES Journal of Marine Science

Published on behalf of ICES/CIEM

Volume 61, issue 2, pages 231-242
Published in print January 2004 | ISSN: 1054-3139
Published online January 2004 | e-ISSN: 1095-9289 | DOI: http://dx.doi.org/10.1016/j.icesjms.2003.11.003
Age and growth of redfish (Sebastes marinus, S. mentella, and S. fasciatus) on the Flemish Cap (Northwest Atlantic)

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Age determination of redfish is difficult. In this paper, the ages of Sebastes mentella on the Flemish Cap are validated by following year classes from 1991 to 2000. The criteria used for S. mentella are consistent and coherent. The growth of different year classes is described and compared, and density-dependence is demonstrated to influence the growth rate of the strong 1990 year class, growth of that year class being the slowest of those followed. The slow rate of growth prevented that year class from maturing at the anticipated age. Growth is also compared between sexes, of S. mentella, S. marinus, and S. fasciatus, revealing that females grow faster than males. Finally, growth rate is compared among species. S. marinus grows fastest and S. mentella slowest, although the influence of density-dependent growth in S. mentella needs to be taken into consideration.

Keywords: age determination; growth; redfish; validation

Journal Article.  6598 words.  Illustrated.

Subjects: Environmental Science ; Marine and Estuarine Biology

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