“We are not where we would like to be. We had to lower the level to 10 percent to be able to say that we are satisfied,” said Ellen Sophie Grefsrud, researcher at the Institute of Marine Research and editor of the report. An additional 15 million salmon were brought into cages last year, which Grefsrud believes could also be the reason for this increase in mortality.
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The situation, according to this work, is not uniform, “there is less mortality in the north of Norway, but it is no less true that there is a problem with winter peptic ulcer,” the researcher explains. In the north, the mortality rate is about 10%. In western Norway, the mortality rate is higher, ...
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