Blar i forfatter "Majaneva, Markus"

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    • Cruise report Hywind Tampen 13 to 28 March 2023 - Cruise no. 2023001004 G.O. Sars 

      Utne-Palm, Anne Christine; Søiland, Henrik; Sveistrup, Anne; Renner, Angelika; Ross, Rebecca; Moy, Frithjof Emil; Paskyabi, Mosttafa Bakhoday; Totland, Atle; Hannaas, Sigurd; de Jong, Karen; Gonzalez-Mirelis, Genoveva; Hovland, Terje; Pedersen, Geir; Wilhelmsen, Jan Frode; Majaneva, Markus; Heum, Sverre Waardal; Skjold, William; Vågenes, Stig; Skaret, Georg; Corus, Finn; Voronkov, Andrey; Kielland, Leonard (Research report; Forskningsrapport, 2023)
      There is very little knowledge related to how floating windfarms effect the marine environment as this is such a new “product”. Thus, the data that we gathered on this cruise will be novel in that sense. The aim of the cruise was to look at possible effects of the windfarm on the marine environment. Based on limited cruise time and tough weather conditions around Hywind Tampen we had to be selective ...

    • Deficiency syndromes in top predators associated with large-scale changes in the Baltic Sea ecosystem 

      Majaneva, Sanna; Fridolfsson, Emil; Casini, Michele; Legrand, Catherine; Lindehoff, Elin; Margonski, Piotr; Majaneva, Markus; Nilsson, Jonas; Rubene, Gunta; Wasmund, Norbert; Hylander, Samuel (Journal article; Tidsskriftartikkel; Peer reviewed, 2020-01-09)
      Vitamin B<sub>1</sub> (thiamin) deficiency is an issue periodically affecting a wide range of taxa worldwide. In aquatic pelagic systems, thiamin is mainly produced by bacteria and phytoplankton and is transferred to fish and birds via zooplankton, but there is no general consensus on when or why this transfer is disrupted. We focus on the occurrence in salmon (<i>Salmo salar</i>) of a thiamin ...

    • DNA Metabarcoding of Preservative Ethanol Reveals Changes in Invertebrate Community Composition Following Rotenone Treatment 

      Kjærstad, Gaute; Majaneva, Markus; Falahati-Anbaran, Mohsen; Topstad, Lasse; Finstad, Anders Gravbrøt; Arnekleiv, Jo Vegar; Ekrem, Torbjørn (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-06-01)
      The botanical compound rotenone is extensively used to eradicate populations and reduce the negative impacts of freshwater invasive animals. The method is controversial as non-target organisms often are negatively affected, but these effects are highly variable among taxa and may be difficult to monitor on species-level as many invertebrates are challenging or costly to identify using morphology. ...

    • Multi-marker DNA metabarcoding reflects tardigrade diversity in different habitats 

      Topstad, Lasse; Guidetti, Roberto; Majaneva, Markus; Ekrem, Torbjørn (Journal article; Tidsskriftartikkel; Peer reviewed, 2020-11-03)
      Like meiofauna in general, tardigrades are often neglected in ecological and environmental surveys. Tardigrades occur in all parts of the world, from deep marine sediments to alpine environments, and are present in most ecosystems. They are therefore potentially good candidates for biomonitoring programs. However, sampling of these minute animals is both tedious and time-consuming, impeding their ...

    • An urban Blitz with a twist: rapid biodiversity assessment using aquatic environmental DNA 

      Hupało, Kamil; Majaneva, Markus; Czachur, Molly Victoria; Sire, Lucas; Marquina, Daniel; Lijtmaer, Darío A.; Ivanov, Vladislav; Leidenberger, Sonja; Čiampor, Fedor; Čiamporová-Zat'ovičová, Zuzana; Mendes, Izabela S.; Desiderato, Andrea; Topstad, Lasse; Meganck, Kenny; Hariz Z. A., Danial; Kjærstad, Gaute; Lin, Xiao-Long; Price, Benjamin; Stevens, Mark; Ekrem, Torbjørn; Deiner, Kristy (Journal article; Tidsskriftartikkel; Peer reviewed, 2020-10-24)
      As global biodiversity declines, there is an increasing need to create an educated and engaged society. Having people of all ages participate in measuring biodiversity where they live helps to create awareness. Recently, the use of environmental DNA (eDNA) for biodiversity surveys has gained momentum. Here, we explore whether sampling eDNA and sequencing it can be used as a means of rapidly surveying ...