The reproductive biology of Diplodus argenteus (Sparidae) in the coastal upwelling system of Cabo Frio, Rio de Janeiro, Brazil
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Data
2005-10-01
Autores
David, G. S.
Coutinho, R.
Quagio-Grassiotto, I. [UNESP]
Verani, J. R.
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Resumo
The reproductive biology of the seabream Diplodus argenteus, a dominant coastal fishery species, was investigated over two consecutive seasons (2001-2002) at Cabo Frio, Brazil, a low-latitude upwelling system. The sex ratio was dominated by females (1.4:1.0) and the length-at-50% sexual maturity (females) was 203mm total length. Females were multiple spawners and the reproductive pattern appeared to be digynous protandrous hermaphroditism. Monthly variations in gonadosomatic index and proportion of ripe females indicated that reproductive activity occurred from late winter to summer (August-February), following coastal upwelling. Copyright © NISC Pty Ltd.
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Diplodus, Reproduction, Seabream, Sparidae, Upwelling, fish biology, reproductive biology, upwelling, Brazil, Cabo Frio, Rio de Janeiro [Brazil], South America, Diplodus argenteus
Como citar
African Journal of Marine Science, v. 27, n. 2, p. 439-447, 2005.