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A Silva ; V Marques ; K Ganias ;Ciencias Marinas 2011, 37 (4B)

Autor: C Nunes

Fuente: http://www.redalyc.org/


Introducción



Ciencias Marinas ISSN: 0185-3880 cmarinas@uabc.mx Universidad Autónoma de Baja California México Nunes, C; Silva, A; Marques, V; Ganias, K Integrating fish size, condition, and population demography in the estimation of Atlantic sardine annual fecundity Ciencias Marinas, vol.
37, núm.
4B, 2011, pp.
565-584 Universidad Autónoma de Baja California Ensenada, México Available in: http:--www.redalyc.org-articulo.oa?id=48021256005 How to cite Complete issue More information about this article Journals homepage in redalyc.org Scientific Information System Network of Scientific Journals from Latin America, the Caribbean, Spain and Portugal Non-profit academic project, developed under the open access initiative Ciencias Marinas (2011), 37(4B): 565–584 Integrating fish size, condition, and population demography in the estimation of Atlantic sardine annual fecundity C M Integración de la talla, condición y demografía poblacional en la estimación de la fecundidad anual de la sardina iberoatlántica C Nunes1*, A Silva1, V Marques1, K Ganias2 1 2 Unidade de Recursos Marinhos e Sustentabilidade (U-REMS), Instituto de Investigação das Pescas e do Mar (INRB-IPIMAR), Avenida Brasília s-n, 1449-006 Lisboa, Portugal. Aristotle University of Thessaloniki, Department of Biology, Section of Zoology, Laboratory of Ichthyology, 54124 Thessaloniki, Greece. * Corresponding author.
E-mail: cnunes@ipimar.pt ABSTRACT.
Spatial and temporal variability in reproductive parameters was studied in combination with population demography to estimate sardine (Sardina pilchardus) population annual fecundity, as an indicator of its reproductive potential.
Samples collected from commercial landings were used to determine the monthly proportion of active females and the duration of the spawning season, while data obtained during the 2002, 2005, and 2008 Daily Egg Production Method surveys were used to analyze the relationship between reproductive parameters (batch fecundity, spawn...





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