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

Authors:Saborido-Rey, Fran
Garabana, Dolores
Cerviño, Santiago
Keywords:age determination, Growth, Redfish, Validation
Issue Date:2004
Publisher:International Council for the Exploration of the Sea
Oxford University Press
Citation:ICES Journal of Marine Science 61(2): 231-242 (2004)
Abstract: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.
Description:12 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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