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Rev. biol. mar. oceanogr. 48(1): 193-197

Nota Científica

 

Alimentación de Micropogonias furnieri (Osteichthyes: Sciaenidae) en el lago costero Budi, Sur de Chile

Carlos Bertrán1, Claudio Jiménez1, Pablo Fierro1, Fernando Peña-Cortés2, Jaime Tapia3, Enrique Hauenstein4 y Luis Vargas-Chacoff1

1Instituto de Ciencias Marinas y Limnológicas, Universidad Austral de Chile, Casilla 567, Valdivia, Chile
2Laboratorio de Planificación Territorial, Escuela de Ciencias Ambientales, Universidad Católica de Temuco, Casilla 15-D, Temuco, Chile
3Instituto de Química de Recursos Naturales, Universidad de Talca, Casilla 747, Talca, Chile
4Facultad de Ciencias, Universidad Católica de Temuco, Casilla 15-D, Temuco, Chile

E-mail: luis.vargas@uach.cl

 

The aim of this study was to determine the feeding of Micropogonias furnieri (n= 256 of commercial size over 25 cm) during austral summer and winter 2004. During the summer period anchoveta Engraulis ringens was the main prey item in terms of percentage of frequency (%F), percentage of weight (%P) and percentage of Index Relative Prey Importance (%IRI); on the other hand, during winter aquatic plants (i.e., undigested remnants of Myriophyllum aquaticum) were the main prey. Therefore, M. furnieri may act like an opportunistic omnivorous fish similar to that described for population from Río de la Plata (Argentina).

Key words:   Prey items, Micropogonias furnieri, Budi coastal lagoon

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