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	Provedor de dados Neotropical Ichthyology (1) Autor Araújo,Francisco Gerson (1) Santos,Alejandra Filippo Gonzalez Neves dos (1) Santos,Luciano Neves dos (1) Palavra-chave Condition factor (1) Environmental variables (1) Gonadosomatic index (1) Impoundment (1) Mass-length relationship (1) Tipo do documento Info:eu-repo/semantics/article (1) Ano 2004 (1) País Brazil (1) Idioma Inglês (1)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 1 Primeira ... 1 ... Última Water level influences on body condition of Geophagus brasiliensis (Perciformes: Cichlidae) in a Brazilian oligotrophic reservoir Neotropical Ichthyology Santos,Alejandra Filippo Gonzalez Neves dos; Santos,Luciano Neves dos; Araújo,Francisco Gerson. Effects of water level fluctuations on body condition of Geophagus brasiliensis were studied in a 30 km² Brazilian oligotrophic reservoir. Physiological condition (K) and gonadosomatic index (GSI) were compared according to water level (low and high). Females' best conditions were associated to higher resources availability during high water, since gonad development did not change between low and high water. Males' condition did not change between water levels, while the highest gonad development occurred in low water. Females presented higher reproductive investment than males, which allocated most of energy for somatic development. This strategy could be a mechanism to undergo the stress caused by oligotrophic characteristics of the reservoir enhanced... Tipo: Info:eu-repo/semantics/article Palavras-chave: Environmental variables; Condition factor; Gonadosomatic index; Mass-length relationship; Impoundment. Ano: 2004 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252004000300007 Registros recuperados: 1 Primeira ... 1 ... Última

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