Search for dissertations about: "Perca fluviatilis"
Showing result 6 - 10 of 44 swedish dissertations containing the words Perca fluviatilis.
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6. Food consumption, growth and recruitment in perch (Perca fluviatilis L.)
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7. The role of young-of-the-year fish in lake ecosystems
Abstract : Food chain theory is based on consumption; that is, presupposing that the only important interaction between organisms is that they actually meet in an unstructured environment and that one of them is consumed. Recently, studies, including biomanipulation projects, have indicated that trophic interactions are more complex than predicted by food chain theory. READ MORE
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8. Ecology and Evolution of Adaptive Morphological Variation in Fish Populations
Abstract : The work in this thesis deals with the ecology and evolution of adaptive individual variation. Ecologists have long used niche theory to describe the ecology of a species as a whole, treating conspecific individuals as ecological equivalent. READ MORE
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9. The growth and energetics of perch (Perca fluviatilis L.) in intensive culture
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10. Population divergence at small spatial scales : – theoretical and empirical investigations in perch
Abstract : Genetically structured populations arise when gene flow between groups of individuals is hindered by geographical, behavioural or temporal barriers. The identification of such groups is important for understanding evolution and has large implications for conservation concern. READ MORE