Sökning: "Fish behaviour"

Visar resultat 1 - 5 av 84 uppsatser innehållade orden Fish behaviour.

  1. 1. Effects of early exposure to fluoxetine on behavioural development in zebrafish

    Kandidat-uppsats, Uppsala universitet/Institutionen för biologisk grundutbildning

    Författare :Moa Forssten; [2024]
    Nyckelord :Fluoxetine; zebrafish; development; behaviour;

    Sammanfattning : Many pharmaceuticals are stable molecules and after human excretion they enter the wastewater facilities where roughly 60 % is removed. The remaining residues will affect the concentration in close by streams and at the effluent, where fish like to spawn. Therefore, the development and behaviour of aquatic life is potentially at risk. LÄS MER

  3. 2. The foraging distribution of Cape gannets in relation to Addo Elephant National Park Marine Protected Area

    Master-uppsats, SLU/Dept. of Wildlife, Fish and Environmental Studies

    Författare :Pelagia Maria Tsousi; [2023]
    Nyckelord :cape gannets; morus capensis; marine Protected Areas; addo Elephant National Park Marine Protected Area; foraging distribution;

    Sammanfattning : Seabirds are considered to be the sentinels of the ocean, as they are able to locate their prey in spite of the great heterogeneity of the marine environment. During the breeding season, these central-place foragers not only need to find prey to maintain themselves but also to feed their young. LÄS MER

  4. 3. Investigating the influence of the tidal regime on harbour porpoise Phocoena phocoena distribution in Mount’s Bay, Cornwall

    Master-uppsats, Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

    Författare :Duncan Jones; [2023]
    Nyckelord :Geography; Geographical Information Systems; GIS; Habitat Modelling; Harbour Porpoise; MaxEnt; Tidal Processes; Conservation; Earth and Environmental Sciences;

    Sammanfattning : Investigating the influence of the tidal regime on harbour porpoise Phocoena phocoena distribution in Mount’s Bay, Cornwall Abstract Unintentional by-catch in fishing gear is a significant cause of mortality of harbour porpoises in UK waters. Understanding the spatial distribution of harbour porpoises at fine scales and how this changes over time is essential when trying to understand where these lethal interactions might occur. LÄS MER

  5. 4. Rörelseaktivitet hos regnbågar (Oncorhynchus mykiss) med olika antal eumelaninfläckar, utsatta för stressande sportfiske

    Kandidat-uppsats,

    Författare :Enar Gesslin; [2023]
    Nyckelord :Fish behaviour; Appearance; Heritability; Genetic correlation; Animal personalities; Behaviour; Corticosteroids; Melanin; Pigment; Syndromes; Stress response; Salmonid fish; Angling vulnerability; Fiskars beteende; Utseende; Ärftlighet; Genetisk korrelation; Djurs personlighet; Beteende; Kortikosteroider; Melanin; Pigment; Syndrom; Stressrespons; Laxfiskar; Sportfiske; Oncorhynchus mykiss;

    Sammanfattning : Rainbow trout (Oncorhynchus mykiss) are introduced in large parts of the world and are commonly farmed for consumption as well as a valued sport fish. Many species of salmonids show large intraspecific variation in pigmentation, which has been shown to correlate with stress response and several other behavioral traits. LÄS MER

  7. 5. Stimbeteende hos glochidieinfekterade och icke-infekterade elritsor

    Kandidat-uppsats, Karlstads universitet/Fakulteten för hälsa, natur- och teknikvetenskap (from 2013)

    Författare :Madeleine Blomqvist; [2023]
    Nyckelord :common minnow; minnow; glochidia; The thick shelled river mussel; Unio crassus; Phoxinus phoxinus; tjockskalig målarmussla; elritsa; Unio crassus; Phoxinus phoxinu; Unio crassus; Phoxinus phoxinus;

    Sammanfattning : The thick shelled river mussel belongs to a highly endangered group of organisms worldwide. A parasitic larval stage is included in the mussel's life cycle where its glochidia larvae attach to the gills of a host fish. LÄS MER