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Maternal influence on early lipid content in an introduced partially anadromous population of Oncorhynchus mykiss
Author(s) -
Liberoff Ana L.,
Leal Alejandra A.,
Díaz De Vivar María E.,
RivaRossi Carla M.,
Pascual Miguel A.
Publication year - 2019
Publication title -
journal of fish biology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.672
H-Index - 115
eISSN - 1095-8649
pISSN - 0022-1112
DOI - 10.1111/jfb.14062
Subject(s) - fish migration , biology , offspring , population , fish measurement , fishery , zoology , ecology , fish <actinopterygii> , demography , genetics , pregnancy , sociology
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 F ). Lipid content of fry decreased with L F and was higher for offspring of anadromous mothers.