Essays about: "rutilus"

Showing result 1 - 5 of 9 essays containing the word rutilus.

  1. 1. Impact of the Warm Summer of 2018 on Growth of Roach (Rutilus rutilus) in Lake Tåkern, Sweden

    University essay from Linköpings universitet/Biologi

    Author : Emil Pedersen; [2020]
    Keywords : Age group; Aging; Annual length increment; Climate Change; Population; Roach; Scales; Temperature;

    Abstract : Climate change will lead to higher temperatures and longer summers in the future, which will likely influence the growing season of fish living in temperate lakes. The warm summer of 2018 in Sweden matches prognoses for normal summers at the end of the century and can thus be used to investigate the effect of temperature related factors on fish growth. READ MORE

  3. 2. Influence of reed (Phragmites australis) belts in the Baltic Sea archipelago on pike (Esox lucius) and other coastal fish species

    University essay from SLU/Dept. Of Aquatic Resources

    Author : Niklas Niemi; [2020]
    Keywords : Reed; Phragmites; Pike; Baltic Sea; spatial distribution; habitat utilization; reed expansion; reed management;

    Abstract : Eutrophication, near shore building and human disturbances by dredging and shore alteration have led to increased expansion of the common reed (Phragmites australis) in the archipelago of the Baltic Sea. Reed has an important ecological function such as nursery habitat for many fish species. READ MORE

  4. 3. Phenotypic correlates of spawning migration behaviour for roach (Rutilus rutilus) and ide (Leuciscus idus) in the stream Oknebäcken, Sweden.

    University essay from Linnéuniversitetet/Institutionen för biologi och miljö (BOM)

    Author : Emma Lindbladh; Johanna Eriksson; [2020]
    Keywords : Anadromous; cyprinids; diadromous; fish migration; ide; leuciscus idus; migration barriers; PIT-tag; roach; rutilus rutilus; sex ratio; spawning migration; Sweden;

    Abstract : Migration occurs among many animal species for the purpose of, among other things, finding food or to reproduce. Spawning migration is a form of migration that occurs among many fish species where they move to another site for reproduction. The movement can be obstructed by migration barriers like road culverts. READ MORE

  5. 4. Is predation performance of Pike (Esox lucius) affected by Oxazepam exposure?

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

    Author : Josefine Persson; [2015]
    Keywords : pharmaceuticals; ecological consequences; aquatic ecosystems; Oxazepam; Esox lucius;

    Abstract : Pharmaceutical contamination is increasing in the environment and the consequences this will bring are of growing concern. The highest contamination of pharmaceuticals can be found in aquatic ecosystems and the organisms of these systems are therefore of utmost importance to research in order to understand the ecological consequences of pharmaceutical contamination. READ MORE

  6. 5. Lateralization in a partial migrating roach population

    University essay from Lunds universitet/Miljövetenskaplig utbildning

    Author : Mattias Engman; [2013]
    Keywords : lateralization; fish; Rutilus rutilus; partial migration; Earth and Environmental Sciences;

    Abstract : Lateralization is the functional specialization to use one brain hemisphere to carry out certain cognitive tasks. Lateralization is widespread across numerous taxa and gives the organism the possibility to increase neural capacity without increasing brain size. READ MORE