Research shows that even fish farmers have doubts as to whether using cleaner fish is an effective delousing method. “Fish farmers tell us that they want a ban on the use of certain species. They’re also very critical of wild-caught cleaner fish being transported,” says researcher Kristine Størkersen. She is one of the scientists who have been helping the Norwegian Food Safety Authority gain an overview of the situation.
Long-lasting stress in farmed salmon makes them more susceptible to diseases. Researchers have now found a simple and reliable method for measuring stress in fish so that it is easier to take action if needed.
Professor Jon Olaf Olaussen says that increasing the aquaculture industry to five times its current production now is a crazy idea. He is calling for reducing one of Norway’s largest industries.