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Visar resultat 1 - 5 av 22 avhandlingar som matchar ovanstående sökkriterier.
1. Neuromolecular and behavioural profile of teleosts : - effects of boldness, agonistic behaviour and reproductive status
Sammanfattning : This thesis investigates if boldness is reflected in the function of brain histaminergic system in zebrafish (Danio rerio). Moreover, behavioural differences in AB line, spiegeldanio (spd) line and wild caught strain of zebrafish have also been explored apart from the winner-loser effect in AB and spd fish. LÄS MER
2. Intraspecific divergence and phenotypic plasticity in behavioural profiles of teleost fish
Sammanfattning : Behavioural differences between and within individuals can greatly affect the outcome of behavioural studies. In addition, behavioural interactions between individuals can compromise the health and welfare of captive fish. LÄS MER
3. Round goby invasion of the Baltic Sea : the role of phenotypic variation
Sammanfattning : Biological invasions are a major threat to biodiversity world wide with annual economic costs up to 1.4 trillion dollars. The round goby (Neogobius melanostomus) is a particularly fierce invader that threatens ecological function of the Baltic Sea. LÄS MER
4. Brain morphology and behaviour in the guppy (Poecilia reticulata) : Effects of plasticity and mosaic brain evolution
Sammanfattning : Understanding how brains have evolved and subsequently culminated in the huge variation in brain morphology among contemporary vertebrate species has fascinated researchers for many decades. It has been recognized that brain morphology is both genetically and environmentally determined. LÄS MER
5. Individual variation in behaviour: personality and performance of brown trout in the wild
Sammanfattning : Individuals from the same population often show very different behaviour. These differences, when consistent across time, are referred to as animal personality or behavioural syndromes. Explaining the occurrence of animal personality from an evolutionary perspective has however proven a difficult issue to tackle. LÄS MER