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Alimentação da comunidade de peixes de um trecho do rio Ceará Mirim, em Umari, Taipu, Estado do Rio Grande do Norte, Brasil

2005; Editora da Universidade Estadual de Maringá (Eduem); Volume: 27; Issue: 2 Linguagem: Inglês

10.4025/actascianimsci.v27i2.1226

1807-8672

Hélio de Castro Bezerra Gurgel, Naisandra Bezerra da Silva, Felippe Dias Lucas, Liliane de Lima Gurgel Souza,

Fish Ecology and Management Studies

was analyzed. The present study is based on an analysis of the stomach contents of 261 specimens belonging to six species of fish in a 200 m section of the Ceará Mirim river, in Umari (5º 37’ 47” S and 35º 37’ 9” W), in the Taipu district of Rio Grande do Norte state. Monthly collections were performed between february, 2001 and april, 2002, with 4-hour fishing periods using casting nets, hooks, sieves and bottom-dragging nets with 5 mm-thick mesh. The relative importance of the diet items was measured by frequency of occurrence, numerical frequency and Kavakami and Vazzoler’s (1980) food index. The nutritional coefficient was also determined. It was verified that the species consume mainly algae, aquatic plants, insects, crustaceans, mollusks and sediment. In light of the findings, it can be inferred that the food consumed by the species is located in the living environment