INVESTIGADORES
CUSSAC Victor Enrique
artículos
Título:
Ontogenetic shifts in the feeding of Galaxias maculatus (Galaxiidae) and Odontesthes microlepidotus (Atherinidae).
Autor/es:
CERVELLINI, P.M.; M.A. BATTINI; V.E. CUSSAC
Revista:
ENVIRONMENTAL BIOLOGY OF FISHES
Editorial:
Springer
Referencias:
Año: 1993 vol. 36 p. 283 - 290
ISSN:
0378-1909
Resumen:
The feeding habits of Galaxias maculatus (Galaxiidae) and Odontesthes microlepidotus (Atherinidae) larvae
and juveniles were studied in an Araucanian lake of Argentina. Fish specimens were grouped, on the basis of
the percentage of each food category found in their gut, using multivariate methods. These groups of fishes
showed significant differences in average total length. Positive correlations between prey size and fish length
were also detected. Diet overlap between juvenile G. maculatus and juvenile 0. microlepidotus was
observed. We discuss the interaction between the two species and the role of functional capabilities for prey
capture during these early life periods.Galaxias maculatus (Galaxiidae) and Odontesthes microlepidotus (Atherinidae) larvae
and juveniles were studied in an Araucanian lake of Argentina. Fish specimens were grouped, on the basis of
the percentage of each food category found in their gut, using multivariate methods. These groups of fishes
showed significant differences in average total length. Positive correlations between prey size and fish length
were also detected. Diet overlap between juvenile G. maculatus and juvenile 0. microlepidotus was
observed. We discuss the interaction between the two species and the role of functional capabilities for prey
capture during these early life periods.maculatus and juvenile 0. microlepidotus was
observed. We discuss the interaction between the two species and the role of functional capabilities for prey
capture during these early life periods.
