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Visar resultat 1 - 5 av 61 avhandlingar som matchar ovanstående sökkriterier.
1. Sperm motility in Gasterosteiform fishes : The role of salinity and ovarian fluid
Sammanfattning : In externally fertilising fishes, various factors in the surrounding environment may influence the viability of the sperm and eggs, thus determining the success of reproduction. In this thesis, the influence of salinity and ovarian fluid on sperm motility has been investigated in three Gasterosteiform fishes. LÄS MER
2. Aggressive behaviour between territorial cichlid fish and its regulation
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3. The three-spined stickleback, Gasterosteus aculeatus L., in ecotoxicological test systems
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4. Evolution of the Neuropeptide Y System in Vertebrates with Focus on Fishes
Sammanfattning : Gene families in vertebrates often contain more dulicates (paralogs) than in invertebrates. This has been attributed to genome duplications, i.e., tetraploidizations. LÄS MER
5. Behavioural ecology of the labrid fishes (Teleostei : Labridae) at Tjärnö on the Swedish west coast
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