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

J Fish Biol

Instituto Patagónico para el Estudio de los Ecosistemas Continentales (CCT-CENPAT-CONICET), Boulevard Almirante Brown 2915, Puerto Madryn, Argentina.

Published: September 2019

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 mass) of recently emerged fry caught in the Santa Cruz River, Argentina, was evaluated as a function of their maternal origin (anadromous v. resident) and fork length (L ). Lipid content of fry decreased with L and was higher for offspring of anadromous mothers.

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http://dx.doi.org/10.1111/jfb.14062DOI Listing

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