Published 2006

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Publication details

Journal : Journal of Fish Biology , vol. 69 , p. 114–129–16 , 2006

Publisher : John Wiley & Sons

International Standard Numbers :
Printed : 0022-1112
Electronic : 1095-8649

Publication type : Academic article

Contributors : Eriksen, Marit Skog; Bakken, Morten; Espmark, Åsa Maria O.; Braastad, Bjarne Olai; Salte, Ragnar

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Kjetil Aune
Chief Librarian


In the current study, mature female Atlantic salmon Salmo salar were given intraperitoneal cortisol implants with the purpose of elucidating potentially detrimental effects on offspring survival, growth, morphological development and also the ability of prenatally stressed offspring to cope with an environmental stressor, typified by a period of mild hyperthermia. Augmented levels of maternal cortisol inflicted a range of progeny somatic parameters, as reflected in increased mortality, reduced fork length and mass, diminished yolk-sac volume, decelerated yolk-sac utilization and, to some extent, enhanced prevalence of morphological malformations. The most pronounced consequences on offspring performance were demonstrated in specimens exposed to both enhanced prenatal cortisol and a subsequent episode of hyperthermia. This accentuates the importance of knowledge on how the maternal endocrinological state during gametogenesis may impinge on offspring characters in fanned Atlantic salmon, and further substantiates the necessity of incorporating maternal effects when evaluating rearing conditions and animal welfare in commercial aquaculture. (c) 2006 The Fisheries Society of the British Isles.