Essays about: "perch preference"

Found 3 essays containing the words perch preference.

  1. 1. Putting behavioral assays on fish to the test: Are sociality and scototaxis trials relevant in the wild?

    University essay from Umeå universitet/Institutionen för ekologi, miljö och geovetenskap

    Author : Arno Veenstra; [2020]
    Keywords : Acoustic telemetry; Social network; Sociality; Scototaxis; Migration;

    Abstract : Animal behavior has become a frequently used tool in modern ecology and ecotoxicology, where laboratory behavioral traits are recognized as sensitive endpoints for assessing natural behavior or non-lethal effects of pollutants on animals. Within these research fields, behavioral traits measured in laboratory environments have been used to formulate predictions of ecological consequences that accompany specific behavior. READ MORE

  3. 2. Perch and litter preferences in chicks

    University essay from SLU/Dept. of Animal Environment and Health

    Author : Cecilie Bramgaard Kjaersgaard Nielsen; [2018]
    Keywords : animal welfare; behaviour; perch preference; litter preference; poultry;

    Abstract : There is a lack of research on the litter and perch preferences of chicks during the first three weeks of their lives. The purpose of this study was to identify which perch and litter types the chicks preferred, if their preference changes over time and if the preference of litter types change depending on the specific behaviours. READ MORE

  4. 3. The effect of visibility and predators on foraging efficiency in littoral and pelagic perch

    University essay from Uppsala universitet/Limnologi

    Author : Konrad Karlsson; [2012]
    Keywords : Resource polymorphism; Perca fluviatilis; phenotypic plasticity; habitat coupling; prey preference;

    Abstract : Phenotypic plasticity in Eurasian perch (Perca fluviatilis) can be driven by a trade-off for ecological specialisation to littoral and pelagic resources. Previous studies on perch have found that this specialisation can have different effects on linkage between the littoral and pelagic food web depending on water transparency. READ MORE