Diet and feeding activity of Acestrorhynchus lacustris (Lutken, 1875) (Characiformes, Acestrorhynchidae) in the water reservoir at Ribeirao Claro, SP

Autor(es)

Silva, A. T. ^[1] ; Goitein, R. ^[1]

Afiliação do(s) autor(es)

^[1] Univ Estadual Paulista, Dept Zool, Inst Biociencias, BR-13506900 Rio Carlo, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: Brazilian Journal of Biology; v. 69, n. 3, p. 757-762, AUG 2009.
• Citações Web of Science: 3

Resumo

A. lacustris is a widely distributed species in the Sao Francisco and Parana river basins, mainly in lentic waters. Specimens were captured monthly, over a whole year in a reservoir built by damming the Ribeirao Claro stream (SP). The stomach contents analyses showed a predominantly piscivorous diet. Feeding activity showed to be clearly less intense during winter, when all the sampling groups were compared. Despite the fact that the diet of A. lacustris presents a high diversity of prey-species, the prey size, their abundance and also behavior possibly determined a certain preference for some of them. (AU)

• Processo FAPESP: 04/02285-3 - Atividade alimentar, hábito alimentar e condição das espécies: Acestrorhynchus lacustris, Astyanax altiparanae, Cyphocharax modestus e Schizodon nasutus; no ponto de captação de água do Ribeirão Claro, SP
• Beneficiário: André Teixeira da Silva
• Modalidade de apoio: Bolsas no Brasil - Iniciação Científica