Essays about: "vandringsbeteende"

Found 5 essays containing the word vandringsbeteende.

  1. 1. Generalized automatic classification of cancer cell migratory patterns

    University essay from Lunds universitet/Avdelningen för Biomedicinsk teknik

    Author : Johannes Kumra Ahnlide; [2021]
    Keywords : cell migration; machine learning; fluorescence microscopy; quantitative microscopy; cell tracking; classification; clustering; Technology and Engineering;

    Abstract : Automated fluorescence microscopy is an emerging technique that enables researchers to generate large amounts of data which in turn allows for large scale quantitative studies. In previous small scale quantitative studies, migration modes found by qualitatively observing migrating lung cancer cells have been described. READ MORE

  3. 2. Laxens uppströmsvandring i den restaurerade och flödesreglerande Umeälvens nedre del

    University essay from SLU/Dept. of Wildlife, Fish and Environmental Studies

    Author : Joakim Johansson; [2015]
    Keywords : Atlantic Salmon; migration; telemetry; flow regime; Umeälven;

    Abstract : The expansion of hydroelectric power has negatively affected the Baltic stock of Atlantic salmon (Salmo salar L.). To enable spawning migration of salmon in flow controlled rivers with intact wild stocks, bypass channels and resting pools with smaller flows are constructed to help salmonids in their migration upstream. READ MORE

  4. 3. Manipulations of feed ration and rearing density : effects on river migration performance of Atlantic salmon smolt

    University essay from SLU/Dept. of Wildlife, Fish and Environmental Studies

    Author : Mansour Royan; [2013]
    Keywords : Atlantic salmon; smolt; feed restriction; rearing density; migration; mortality; migration speed;

    Abstract : The out-migration of Atlantic salmon smolts was studied at the lower part of the Umeå River (River Umeälven) from the Norrfors dam towards the sea (Bothnian Bay) in northern Sweden. Two-year old hatchery-reared Atlantic salmon (n=250) were tagged with acoustic transmitters and released downstream of the Norrfors dam and monitored while migrating downstream. READ MORE

  5. 4. Passage efficiency and migration behavior for adult Atlantic salmon at a Half-Ice Harbor fish ladder

    University essay from SLU/Dept. of Wildlife, Fish and Environmental Studies

    Author : Robert Karlsson; [2013]
    Keywords : passage efficiency; salmon; fish ladder; telemetry; power station;

    Abstract : Due to exploitation of the world’s rivers, the upstream migration of anadromous species is frequently delayed or even prevented. To mitigate these problems and allow fish to migrate past obstacles, structures such as fish ladders have been developed. However, recent studies show that many of the present fish passage facilities are deficient. READ MORE

  6. 5. Havsöringens (Salmo trutta) och laxens (Salmo salar) lekområden och lekvandring i Vindelälven och Piteälven

    University essay from SLU/Dept. Of Aquatic Resources

    Author : Caroline Pouchard; [2003]
    Keywords : havsöring; lekvandring; vindelälven; piteälven; radiotelemetri; vandringsbeteende; leklokal;

    Abstract : The population of seatrout and salmon are threatened by over-fishing in the sea and loss of spawning and growing habitats caused by logging activities in many swedish rivers. The knowledge of the spawning migration and the habitat use of the seatrouts and salmon are limited. READ MORE