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ICES Journal of Marine Science: Journal du Conseil 2004 61(2):231-242; doi:10.1016/j.icesjms.2003.11.003
© 2004 by ICES/CIEM International Council for the Exploration of the Sea/Conseil International pour l'Exploration de la Mer
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Age and growth of redfish (Sebastes marinus, S. mentella, and S. fasciatus) on the Flemish Cap (Northwest Atlantic)

Fran Saborido-Rey*, Dolores Garabana and Santiago Cerviño

Instituto de Investigaciones Marinas (CSIC) Eduardo Cabello, 6, 36208 Vigo, Spain

*Correspondence to F. Saborido-Rey: tel: +34 986 214466; fax: +34 986 292762. e-mail: fran{at}iim.csic.es.

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

Received 26 June 2003; accepted 15 November 2003.


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C. Stransky, S. Gudmundsdottir, T. Sigurdsson, S. Lemvig, K. Nedreaas, and F. Saborido-Rey
Age determination and growth of Atlantic redfish (Sebastes marinus and S. mentella): bias and precision of age readers and otolith preparation methods
ICES J. Mar. Sci., January 1, 2005; 62(4): 655 - 670.
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