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

LIBEROFF, ANA; LEAL, A.A.; DÍAZ DE VIVAR, M.E.; RIVA ROSSI, C.M.; PASCUAL, M.A.

JOURNAL OF FISH BIOLOGY

WILEY-BLACKWELL PUBLISHING, INC

Lugar: Londres; Año: 2019 vol. 95 p. 959 - 964

0022-1112

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