Florian Sambraus

Telefon: 91918319


Diploid and triploid Atlantic salmon - following commercial productions and carrying out experiments in tanks and seacages.

Main focus:

  • Growth performance and feeding
  • Fish welfare and diseases
  • Fish physiology and maturation
  • Behaviour
  • Adjusted diets for triploid salmon
  • Environmental conditions (temperature and oxygen)

Curriculum Vitae

Since 2017      Postdoc on the commercial production of diploid and triploid Atlantic salmon, IMR Matre, Norway

2016                PhD on production bottlenecks in triploid Atlantic salmon, IMR Matre and the University of Bergen, Norway

2011                MSc in Sustainable Aquaculture, University of Stirling, Scotland

2010                BSc in Environmental Science and Agriculture, Chrstian-Albrechts-University, Kiel, Germany



Fjelldal, P.G., van der Meeren, T., Fraser, T.W., Sambraus, F., Jawad, L. and Hansen, T.J., 2018. Radiological changes during fracture and repair in neural and haemal spines of Atlantic cod (Gadus morhua). Journal of Fish Diseases, 41, 1871-1875.

Sambraus, F., Remen, M., Olsen, R.E., Hansen, T.J., Waagbø, R., Torgersen, T., Lock, E.J., Imsland, A., Fraser, T.W. and Fjelldal, P.G. (2018). Changes in water temperature and oxygen: the effect of triploidy on performance and metabolism in large farmed Atlantic salmon. Aquaculture Environment Interactions, 10, 157-172.

Sambraus, F., Olsen, R. E., Remen, M., Torgersen, T., Hansen, T. J. and Fjelldal, P. G. (2017). Water temperature and oxygen: The effect of triploidy on performance and metabolism in farmed Atlantic salmon (Salmo salar) postsmolts. Aquaculture, 473, 1-12.

Sambraus, F., Fjelldal, P. G., Remø, S. C., Hansen, T. J., Hevrøy, E. M., Nilsen, T. O., Thorsen, A. and Waagbø, R. (2017). Water temperature and dietary histidine affect cataract formation in large yearling Atlantic salmon (Salmo salar) diploids and triploids undergoing parr-smolt-transformation. Journal of Fish Diseases, 40, 1195-1212.

Sambraus, F., 2016. Solving bottlenecks in triploid Atlantic salmon production. Temperature, hypoxia and dietary effects on performance, cataracts and metabolism. PhD thesis, University of Bergen.

Fjelldal, P. G., Hansen, T. J., Lock, E. J., Wargelius, A., Fraser, T. W. K., Sambraus, F., El-Mowafi, A., Albrektsen, S., Waagbø, R., and Ørnsrud, R. (2016). Increased dietary phosphorous prevents vertebral deformities in triploid Atlantic salmon (Salmo salar L.). Aquaculture Nutrition, 22, 72-90.

Weltersbach, M.S., Ferter, K., Sambraus, F., and Strehlow, H.V. (2016). Hook shedding and post-release fate of deep-hooked European eel (Anguilla anguilla). Biological Conservation, 199, 16-24.

Hansen, T. J., Remen, M., Sambraus, F., and Fjelldal, P. G. (2015). A report on overripe female and spent male Atlantic salmon (Salmo salar) in August. Aquaculture, 444, 114-116.

Ferter, K., Weltersbach, M. S., Humborstad, O.-B., Fjelldal, P. G., Sambraus, F., Strehlow, H. V. and Vølstad, J. H. (2015). Dive to survive: effects of capture depth on barotrauma and post-release survival of Atlantic cod (Gadus morhua) in recreational fisheries. ICES Journal of Marine Science: Journal du Conseil, 72, 2467-2481.

Sambraus, F., Glover, K. A., Hansen, T., Fraser, T. W. K., Solberg, M. F., and Fjelldal, P. G. (2014). Vertebra deformities in wild Atlantic salmon caught in the Figgjo River, southwest Norway. Journal of Applied Ichthyology, 30, 777-782.

Jawad, L. A., Kousha, A., Sambraus, F., and Fjelldal, P. G. (2014). Short communication: On the record of pug-headedness in cultured Atlantic salmon, Salmo salar Linnaeus, 1758 (Salmoniformes, Salmonidae) from Norway. Journal of Applied Ichthyology, 1, 3.

Hansen, T., Fraser, T.W.K., Sambraus, F., and Fjelldal, P.G. (2014). Triploid laks krever tilpassete produksjonsbetingelser. Havforskningsrapporten 2014, 21-22. 

Fraser, T. W., Hansen, T., Mayer, I., Skjæraasen, J. E., Glover, K. A., Sambraus, F., and Fjelldal, P. G. (2014). The effect of triploidy on vaccine side-effects in Atlantic salmon. Aquaculture 433, 481-490.

Fraser, T. W. K.; Hansen, T.; Skjaeraasen, J. E.; Mayer, I.; Sambraus, F.; Fjelldal, P. G. (2013). The effect of triploidy on the culture performance, deformity prevalence, and heart morphology in Atlantic salmon. Aquaculture 416, 255–264.

Taylor, J. F.; Sambraus, F.; Mota-Velasco, J.; Guy, D. R.; Hamilton, A.; Hunter, D.; Corrigan, D.; Migaud, H. (2013). Ploidy and family effects on Atlantic salmon (Salmo salar) growth, deformity and harvest quality during a full commercial production cycle. Aquaculture 410–411, 41–50.

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