Maternal influence on early lipid content in an introduced partially anadromous population of rainbow trout Oncorhynchus mykiss

LIBEROFF, A. L.; LEAL, A.; DIAZ DE VIVAR, M. E.; RIVA ROSSI, C. M.; PASCUAL, MIGUEL

JOURNAL OF FISH BIOLOGY

WILEY-BLACKWELL PUBLISHING, INC

Año: 2019

0022-1112

This study evaluated how the maternal migratory tactic in a partially anadromous population of Oncorhynchus mykiss may influence the early energetic status of their offspring. Total lipid content variation (% dry weight) of recently emerged fry caught in the Santa Cruz River (Argentina) was evaluated as a function of their maternal origin (anadromous vs. resident) and fork length (FL). Lipid content of fry decreased with FL and was higher for offspring of anadromous mothers.