Journal article

Skin and bone development in Atlantic salmon (Salmo salar) influenced by hatchery environment

Nicholas Robinson, Christian Karlsen, Elisabeth Ytteborg, Aleksei Krasnov, Jascha Gerwins, Hanne Johnsen, Jelena Kolarevic

AQUACULTURE | ELSEVIER | Published : 2021

Abstract

Recirculating aquaculture systems (RAS) are receiving greater attention because they have potential to reduce the use of water, enable better control of environmental conditions and give greater biosecurity. However, little is known about the effects of conditions in RAS on early development. Here we compare the survival, development and gene expression of Atlantic salmon grown in a RAS and flow through (FT) system from egg until before they start to feed (at around 875°d). The epidermis of RAS fish was significantly thinner and contained larger numbers of mucosal cells, which were positioned more toward the skin surface, and less mineralisation of the vertebral body, than FT fish. Genes kno..

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University of Melbourne Researchers

Grants

Awarded by Norwegian Research Council


Funding Acknowledgements

Thanks to Karoline Valseth, May Britt MOrkedal, Frode Nerland, Bernhard Eckel and Erik angstrom ge KlingOy from the Nofima station at SunndalsOra for running the experiment, taking care of the fish and helping with biological and water quality samplings, to Dag Egil Bundgaard, Kristin Skei Nerdal and Tonje Kristin Vikan for their help with water quality analyses, to Ragnhild Stenberg Berg for isolation of RNA and to Gunhild Haustveit for CTscanning. This work was a part of project "Farmed Animals Welfare Toolbox (FARMWELL) " supported by The Norwegian Research Council, grant number 194050.