Dieta e padrão alimentar de Apistogrammoides pucallpaensis em várzeas da Reserva de Desenvolvimento Sustentável Mamirauá – RDSM, região do médio Solimões, Amazônia, Brasil.

Abstract

The Mamirauá Sustainable Development Reserve (RDSM) has both floodplain and solid ground environments that are influenced by the strength of the flood pulse, these ecosystems are among the most important Amazonian aquatic systems in terms of biodiversity. The Apistogrammoides pucallpaensis species being studied belongs to the family Cichlidae that presents singular characteristics for Aquariophilia. The present study seeks to know the eating behavior of A. pucallpaensis and thus contribute to the understanding of the processes that regulate to the aquatic ecosystems of the floodplain environments of the RDSM. For the determination of the diet, the stomach contents of 200 individuals were analyzed. It was verified that A. pucallpaensis ingested a broad alimentary spectrum composed by 27 items that were grouped in 4 categories denominated Seaweed Diatomacea, Aquatic Insects, Aquatic Invertebrates and others. It has been concluded that A.pucallpaensis in these environments are eurifágicos, possessing carnivorous food habits with tendency to insectivorous, considering that 98.9% of the food is composed by insects and aquatic invertebrates. It is also worth noting that the record of this species is new for the Brazilian territory, since its occurrence is common only in the regions of the lower Ucayali River, Peru, and the Amazon River, region of Peru and Colombia.