Sökning: "gammarider"

Hittade 3 uppsatser innehållade ordet gammarider.

  1. 1. 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

  3. 2. Förekomst av mikroplaster i tångmärlor (Gammaridae) längs södra Hallandskusten

    Kandidat-uppsats, Högskolan i Halmstad

    Författare :Joakim Karlsson; [2020]
    Nyckelord :plastic; plastics; microplastics; microplastic; Amphipoda; gammarid; gammarids; Gammaridae; Gammarus; Halland; Skåne; rural; urban; biology; aquatic biology; Falkenberg; Ugglarp; Halmstad; Laxvik; Båstad; Kattvik; Sweden; trophic transfer; plast; plaster; mikroplaster; mikroplast; tångmärlor; tångmärla; Gammaridae; Gammarus; gammarid; gammarider; märlkräfta; märlkräftor; Amphipoda; Halland; Skåne; landsbygd; stad; biologi; akvatisk biologi; Falkenberg; Ugglarp; Halmstad; Laxvik; Båstad; Kattvik; Sverige; trofisk överföring;

    Sammanfattning : Since the middle of the 20th century, scientists have observed that marine organisms ingest plastics in various shapes, directly or through food. Plastics smaller than 5 millimetres, called microplastics, have in recent years gained more attention and been found to accumulate environmental toxins. LÄS MER

  4. 3. Sediment toxicity in River Kolbäcksån – toxicity tests with Chironomus riparius and Gammarus pulex

    L3-uppsats, SLU/Dept. of Aquatic Sciences and Assessment

    Författare :Jenny Öhlander; [2003]
    Nyckelord :Kolbäcksån; sediment toxicity; Chironomus riparius; Gammarus pulex;

    Sammanfattning : During a long time the river Kolbäcksån has been influenced by mining activities in the catchment area and consequently the lakes in the area have been affected by high metal discharges. The most contaminated lake in river Kolbäcksån is L. Saxen, which is situated in the upper part of the river system. LÄS MER