Resumen

OLIVEIRA FOGACA, Fabio Nascimento; ROCHA ARANHA, José Marcelo  y  PEREIRA ESPER, Maria De Lourdes. Ictiofauna do rio do quebra (antonina, pr, brasil): ocupação espacial e hábito alimentar. INCI [online]. 2003, vol.28, n.3, pp.168-173. ISSN 0378-1844.

The present paper studied the feeding strategy and patterns of spatial occupation in Quebra stream fish assemblage. The samples were taken using traditional methods (fishing-nets and sieves) and complemented with underwater observations through snorkeling. Twenty five species belonging to nine families were identified. Fifteen species were observed during the underwater observations and nine were registered only by sampling. The diet of fifteen species was determined by the analysis of their stomach contents. Five trophic guilds were determined. Six microhabitats were defined and the patterns of spatial occupation were determined for each one. In general there was a great overlap both in the diet and spatial occupation. The guild "insectivorous with predominance of terrestrial insects" showed a clear segregation in the pattern of spatial occupation.

Palabras clave : Dieta de Peixes; Estratégia Alimentar; Ocupação Espacial; Peixes de Riacho.