Marius Takvam's picture

Marius Takvam

PhD Candidate, working in the Marine Development Biology group. Mainly focus on osmoregulation and acid-base regulation in salmonids and its relevance to aquaculture.
  • E-mailm.takvam@uib.no
  • Visitor Address
    Thormøhlens gate 53 A/B
    5006 Bergen
  • Postal Address
    Postboks 7803
    5020 Bergen

My main research interest is osmoregulation and acid-base regulation in fish. My professional background is in aquaculture biology and fish physiology where I have extensive knowledge within smolt development and production protocols for salmonids such as Atlantic salmon. My main methods include bioinformatic analysis (both at gene and protein level), enzyme activity assays, gene expression, plasma/serum/urine analysis and catheterization techniques. I also have experience with immunohistochemistry, western blott and cloning.

My PhD thesis focuses on describing and mapping ion transporters in the kidney of Atlantic salmon to better understand the osmoregulatory role of the kidney, which currently is unknown in this species. The goal is to better understand kidney role and function under different environmental conditions and during critical developmental stages of their life cycle. The knowledge gained here will be important to better understand how the kidney is affected in the intensive production protocols currently used in the Norwegian salmon industry. This is especially important due to the reoccurring issues with regulative disorders such as nephrocalsinosis and hemoragic smolt syndrom (HSS) which lead to severe salt precipitation and bleedings in the kidney of salmonids.

Academic article
  • Show author(s) (2021). Sulfate homeostasis in Atlantic salmon is associated with differential regulation of salmonid-specific paralogs in gill and kidney. Physiological Reports. 1-21.
  • Show author(s) (2023). Betydning av tidspunkt og lengde av vintersignal i RAS for prestasjon i sjø ved utsett av stor smolt. 30/2023. 30/2023. .
  • Show author(s) (2023). Smoltkvalitet og ny metodikk for evaluering av sjøvannstilpasning.
  • Show author(s) (2023). Smolt Development and kidney function.
  • Show author(s) (2023). Nyrefunksjon i laksefisk - biomarkører for bruk i settefiskfasen.
  • Show author(s) (2023). Nyrefunksjon i laksefisk - biomarkører for bruk i settefiskfasen.
  • Show author(s) (2023). Fiskehelse under stort press i norsk oppdrettsnæring - mer målrettet forskning kreves for å løse de største utfordringene.
  • Show author(s) (2023). Differential regulation of the magnesium transporter families Slc41, Cnnm and Trpm6-7 in the kidney are associated with adaption to seawater in Atlantic salmon (Salmo salar).
Popular scientific lecture
  • Show author(s) (2023). Modifikasjoner av Na+, K+ - ATPase enzymaktivitets protokollen og bruksområder i moderne lakseoppdrett.
Academic literature review
  • Show author(s) (2023). Role of the kidneys in acid-base regulation and ammonia excretion in freshwater and seawater fish: implications for nephrocalcinosis. Frontiers in Physiology.
  • Show author(s) (2023). New wine in old bottles: Modification of the Na+/K+-ATPase enzyme activity assay and its application in salmonid aquaculture. Reviews in Aquaculture. 12 pages.
  • Show author(s) (2021). Ion transporters and osmoregulation in the kidney of teleost fishes as a function of salinity. Frontiers in Physiology. 25 pages.

More information in national current research information system (CRIStin)