INIBIOMA   20415
INSTITUTO DE INVESTIGACIONES EN BIODIVERSIDAD Y MEDIOAMBIENTE
Unidad Ejecutora - UE
artículos
Título:
Diet of juvenile Percichthys trucha (Teleostei: Percichthyidae) in Northern Patagonia: the importance of the littoral zone
Autor/es:
ELENA, FERNANDO; FERNÁNDEZ, MARIA VALERIA; MACCHI, PATRICIO; MONTES DE OCA, FERNANDA
Revista:
Iranian Journal of Ichthyology
Editorial:
Iranian Society of Ichthyology
Referencias:
Lugar: Teherán; Año: 2020 vol. 7 p. 78 - 84
Resumen:
The creole perch, Percichthys trucha is endemic to southern South America and is the largest native predator fish in Patagonia. The objective of this work was to identify the food groups of juvenile perch (up to one year old) in its natural environment, the Espejo Chico Lake where is one of the largest national parks in southern South America. We analyzed 98 perch juveniles from Espejo Chico Lake. The specimens caught were measured and weighed, and condition factor (K) was calculated. In the diet analyses nine different groups (orders) were found in the stomach contents: Diplostraca (Family Chydoridae), Cyclopoida, Amphipoda, Diptera, Coleoptera, Ephemeroptera, Plecoptera, Hymenoptera and Odonata. Food items showed no correlation with fish size (