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Showing result 1 - 5 of 42 swedish dissertations matching the above criteria.
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1. Fish coping with stress-Physiology and behaviour in salmonids with focus on stress coping styles, rearing conditions and smolt migration
Abstract : When animals are reared for conservational releases it is paramount to avoid reducing genetic and phenotypic variation over time. Therefore, an understanding of how behavioural and physiological traits affect the performance of an individual both within the captive and the wild environment is required. READ MORE
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2. Habitat compensation in nature-like fishways : Effects on benthos and fish
Abstract : The construction of nature-like fishways has become an increasingly common measure to restore longitudinal connectivity in streams and rivers affected by hydroelectric development. These fishways also have the potential to function as habitat compensation measures when running waters have been degraded or lost. READ MORE
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3. Behavioural Effects and Central Nervous System Actions of Growth Hormone in Salmonid Fish
Abstract : .... READ MORE
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4. Winter behaviour of stream salmonids: effects of temperature, light, and ice cover
Abstract : In boreal streams, stream salmonids typically face low water temperatures and variable ice conditions during winter, and thus stream salmonids are expected to use different behavioural strategies to cope with these environmental conditions. The studies presented in this thesis explore how temperature, light intensity, and surface ice affect salmonid behaviour, with focus on drift-feeding and ventilation rates. READ MORE
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5. Leptin endocrinology and energy homeostasis in salmonids
Abstract : In salmonids, the physiological role of leptin is not completely elucidated. Nonetheless, the anorexigenic effect of leptin indicates a role in their energy homeostasis. This thesis focuses on advancing the understanding of the involvement of the leptin system in the regulation of energy homeo-stasis and food intake in teleost fish. READ MORE