Multifactorial diseases
Photo: Frank GregersenCopyright: Nofima
19. December 2011
Disease in salmon is caused by a number of factors in combination, including many micro-organisms, various environmental influences, aquaculture conditions and incorrect nourishment. If one is ignorant of the factors which contribute to the development of diseases and their relative importance, it is difficult either to prevent them or treat them.
Cod fillet – fresh and nematode-free
Photo: Frank GregersenCopyright: Nofima
14. November 2011
In his PhD project, Nofima scientist Agnar Sivertsen has developed a new system for automatic inspection of cod fillets known as hyperspectral imaging. As well as detecting unwanted elements, the system can provide information about how fresh the fish is.
Does ISA transfer between wild and farmed salmon?
Photo: Frank GregersenCopyright: Nofima
7. November 2011
The aquaculture industry in Troms has been hit by annual outbreaks of ISA since 2007. Fish farmers hit by the disease can lose large quantities of fish, and a mortality rate of nearly 90 % has been registered in controlled challenge experiments on salmon.
What we know and don’t know about escaped farmed salmon
Photo: Frank Gregersen, Nofima7. November 2011
It can be hard to distinguish between myths and facts in the debate concerning escaped farmed salmon and their genetic influence on wild salmon. Not everyone knows that wild and farmed Atlantic salmon in Norway have exactly the same genes. Scientists from Nofima have performed a critical review of current knowledge.
Tries out microalgae as fish oil replacement in salmon feed
Photo: Reidun Lilleholt, Nofima18. October 2011
Are the fatty acids in certain microalgae suitable to replace fish oil in feed for salmonids? To find out, a Canadian Master student is doing experiments at the Aquaculture Protein Centre (APC) and Nofima’s research station at Sunndalsøra in Norway.
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