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Implantation of cocoa butter reduces egg and hatchling size in Salmo trutta
Author(s) -
Hoogenboom M. O.,
Armstrong J. D.,
Miles M. S.,
Burton T.,
Groothuis T. G. G.,
Metcalfe N. B.
Publication year - 2011
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/j.1095-8649.2011.03039.x
Subject(s) - salmo , biology , brown trout , offspring , hatchling , maternal effect , hormone , zoology , hatching , fishery , fish <actinopterygii> , endocrinology , pregnancy , genetics
This study demonstrated that, irrespective of hormone type or dose, administering cocoa butter implants during egg development affected the growth of female brown trout Salmo trutta and reduced the size of their offspring. Cortisol treatment also increased adult mortality. Caution is urged in the use of implants for studies of maternal hormonal influences on adult fishes and their offspring.