
handle: 11449/70376
The length-weight relationship and condition factor for Cichla kelberi introduced in an artificial lake in southeastern Brazil were analyzed. By studying separately the male, female and immature individuals, different length-weight patterns were found to happen among them. The same happened when distinct seasonal variations were compared. They are related to feeding alterations and me reproductive periods. The length-weight relationship and condition factor for these fishes vary in accordance with the time of introduction, population size, the characteristics of the ecosystem, sexual maturity, as well as the intra- and interspecific interactions.
Analisou-se a relação peso-comprimento e o fator de condição de Cichla kelberi introduzido em um lago artificial do Sudeste brasileiro. Imaturos, fêmeas e machos possuem padrões diferentes quanto à relação peso-comprimento e quanto às variações sazonais do fator de condição, que estão relacionadas às alterações de intensidade da atividade alimentar e ao período reprodutivo. Assim, a relação peso-comprimento e o fator de condição variam de acordo com tempo de introdução, tamanho da população, características dos ecossistemas, as interações intra e interespecíficas e maturidade sexual.
ecosystem, seasonal variation, nonhuman, Introduction of species, Peacock bass, fish school, feeding behavior, Cichla, Cichlidae, sexual maturity, Cichla kelberi, Perciformes, Bairdiella rhonchus, sexual behavior, evolutionary adaptation, Pisces, Condition factor, lake, Brazil
ecosystem, seasonal variation, nonhuman, Introduction of species, Peacock bass, fish school, feeding behavior, Cichla, Cichlidae, sexual maturity, Cichla kelberi, Perciformes, Bairdiella rhonchus, sexual behavior, evolutionary adaptation, Pisces, Condition factor, lake, Brazil
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