Sökning: "Caspian sea"

Visar resultat 1 - 5 av 11 uppsatser innehållade orden Caspian sea.

  1. 1. The use of regurgitated pellets from the great cormorant to detect the presence of the round goby

    Master-uppsats, Göteborgs universitet / Institutionen för biologi och miljövetenskap

    Författare :Tim Dorup; [2023-08-07]
    Nyckelord :Invasive species; Regurgitated pellets; Great cormorant; Round goby; dPCR;

    Sammanfattning : The round goby (Neogobius melanostomus) is an invasive alien species that poses one of the greatest threats to biodiversity and ecosystem services in Sweden today. The round goby originates from the Black Sea and Caspian Sea but has in recent decades rapidly spread with global shipping traffic to new areas in Europe and North America. LÄS MER

  3. 2. Archaeogenomics illuminates 4000 years of Northern European Short Tailed Sheep in the Baltic Sea region

    Master-uppsats, Uppsala universitet/Institutionen för biologisk grundutbildning

    Författare :Martin Larsson; [2022]
    Nyckelord :Sheep; Archaeogenomics; ancient DNA; Northern european short tailed sheep;

    Sammanfattning : Sheep were domesticated ~10 000 years ago from Asiatic Mouflon. They then spread to Europe via the migration of farming human populations and had reached Scandinavia by ~6000 years ago. Another migration of humans stemming from the Pontic-Caspian steppe reached Scandinavia around ~5000 years ago, possibly with new types of sheep. LÄS MER

  4. 3. Spatial and temporal variations in stable isotope signatures (δ13C and δ15N) of the gammarids and the common carp in the southern coast of the Caspian Sea

    Master-uppsats, SLU/Dept. Of Aquatic Resources

    Författare :Nazila Hajizadeh Koupayeh; [2020]
    Nyckelord :carbon stable isotope; Caspian sea; Cyprinus carpio; food webs; Gammarus aequicauda; nitrogen stable isotope; Pontogammarus maeoticus;

    Sammanfattning : Despite the growing body of research on the use of stable isotope analysis in food web studies, spatial and temporal variations in stable isotope ratios of coastal communities are still poorly understood. The aim of my study is to explore how carbon and nitrogen stable isotopes of selected benthic communities vary spatially and temporally across the south of Caspian Sea. LÄS MER

  5. 4. Invasive round goby, Neogobius melanostomus - suitable prey for native cod, Gadus morhua?

    Kandidat-uppsats, SLU/Dept. Of Aquatic Resources

    Författare :Andreas Ljung; [2020]
    Nyckelord :Round goby; invasive species; cod; predator-prey inter-action;

    Sammanfattning : Invasive species is a worldwide issue that is considered to be the one of the main reasons to losses of biodiversity. The round goby, Neogobius melanostomus, is an invasive species in the Baltic Sea that originates from the Black- and Caspian Sea. LÄS MER

  7. 5. Phylogenetic analysis of aquatic microbiomes : Evolution of the brackish microbiome

    Master-uppsats, KTH/Skolan för kemi, bioteknologi och hälsa (CBH)

    Författare :Ziling Deng; [2020]
    Nyckelord :Metagonome; Aquatic environments; Biodiversity; Evolution; Phylogenetic tree; Ancestor state reconstruction; Biome origin; Metagenom; vattenmiljöer; biologisk mångfald; utveckling; fylogenetiskt träd; rekonstruktion av förfäder; biom-ursprung;

    Sammanfattning : Microorganisms play crucial roles in aquatic environments in determining ecosystemstability and driving the turnover of elements essential to life. Understanding thedistribution and evolution of aquatic microorganisms will help us predict how aquaticecosystems will respond to Global Change, and such understanding can be gained bystudying these processes of the past. LÄS MER