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

AuthorsSaborido-Rey, Fran ; Garabana, Dolores ; Cerviño, Santiago
Keywordsage determination
Issue Date2004
PublisherInternational Council for the Exploration of the Sea
Oxford University Press
CitationICES Journal of Marine Science 61(2): 231-242 (2004)
AbstractAge 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.
Description12 pages, 5 figures.-- Presented at the NAFO Deep-Sea Fisheries Symposium (Varadero, Cuba, Sep 12-14, 2001).
Publisher version (URL)http://dx.doi.org/10.1016/j.icesjms.2003.11.003
Appears in Collections:(IIM) Artículos
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