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- Title
Diet and feeding activity of Acestrorhynchus lacustris (Lütken, 1875) (Characiformes, Acestrorhynchidae) in the water reservoir at Ribeirão Claro, SP.
- Authors
Silva, A. T.; Goitein, R.
- Abstract
A. lacustris is a widely distributed species in the Sao Francisco and Parami fiver 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.
- Subjects
DIET; FISHES; STOMACH; RIVERS; RESERVOIRS
- Publication
Brazilian Journal of Biology, 2009, Vol 69, Issue 3, p757
- ISSN
1519-6984
- Publication type
Article
- DOI
10.1590/S1519-69842009000400002