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Item Description Gorshkov, S. en_US Meiri, I. en_US Rosenfeld, H. en_US Ben-Atia, S. en_US Lutzki, S. en_US Peduel, A. en_US Ron, B. en_US Skvortzov, A. en_US Gorshkova, G. en_US Tandler, A. en_US 2012-01-19T20:11:22Z 2012-01-19T20:11:22Z 2003 en_US
dc.identifier.citation Gorshkov, S., Meiri, I., Rosenfeld, H., Ben-Atia, S., Lutzki, S., Peduel, A., Ron, B., Skvortzov, A., Gorshkova, G., & Tandler, A. (2003). Parental Effects On Sex Ratios In Progeny Of The European Sea Bass (Dicentrarchus Labrax). The Israeli Journal of Aquaculture - Bamidgeh, 55(4), 265-273. en_US
dc.identifier.issn 0792-156X en_US
dc.description.abstract In European sea bass (Dicentrarchus labrax), females grow 20-50% faster than males. Therefore, they are more in demand than males for commercial farming, generating much inter- est in the development of female monosex populations. Whereas most current research focus- es on the influence of temperature on sex determination, the present experiments aimed at studying parental effects on sex ratios in progeny. The study analyzed progeny resulting from a diallel crossing (2 x 2 type or a complete bi-factorial mating design), reflecting both maternal and paternal genetic relatedness among progeny. The proportion of females varied significantly among families (20.7-68.2%). There were significant maternal and paternal effects on the pro- portion of females among the progeny. The effect of the parental interaction on the sex ratio in the progeny was also significant. Parents had a significant effect on total length and body weight. Sexual growth dimorphism, in favor of females, was evident in all the full-sib families and varied significantly between families. Among offspring at 9-9.5 months (68.9±23.7 g), females were 26.6% heavier than males. It is concluded that in addition to temperature manipulation in sea bass, as proposed in earlier studies, selection of parents will probably result in an improved ratio of female to male progeny. en_US
dc.format.extent 9 pages en_US
dc.publisher Israeli Journal of Aquaculture - BAMIGDEH en_US
dc.relation.ispartofseries The Israeli Journal of Aquaculture - Bamidgeh en_US
dc.subject Dicentrarchus labrax , dimorphism, parental effects, sexual growth, sex ratio en_US
dc.subject.lcsh Fish culture--Israel--Periodicals. en_US
dc.subject.lcsh Fish culture--Periodicals. en_US
dc.subject.lcsh Aquaculture--Israel--Periodicals. en_US
dc.subject.lcsh Aquaculture--Periodicals. en_US
dc.title Parental Effects On Sex Ratios In Progeny Of The European Sea Bass (Dicentrarchus Labrax) en_US

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