In sea trout, the physiological response to salmon louse is stronger in female than in males

ABSTRACT: Female trout were better adapted for changes in water salinity, while male trout were better adapted for salmon louse infection. These findings may suggest a skewed sex ratio against more females among louse infected wild sea trout that returns pre-maturely to freshwater. Abstract The aims of this study were to compare male and female sea trout (Salmo trutta) with respect to their hypo-osmoregulatory ability over a simulated migration to seawater and their clinical and physiological response to salmon louse (Lepeophtheirus salmonis) infection in seawater and over a simulated pre-mature return to freshwater. For this purpose, 2-year-old hatchery-reared male and female brown trout (F1 offspring of wild caught anadromous fish) were infected with salmon lice and measured for changes in plasma

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PROVIDER: S-EPMC9835072 | biostudies-literature | 2023 Jan

REPOSITORIES: biostudies-literature