The sea lice parasite is the greatest disease problem facing the Norwegian aquaculture industry. But help may be on its way an army of 15 million lice-eating Ballan wrasse, according to the Research Council of Norway.
With an annual value of around 4 million, herring (Clupea harengus) is, by weight, the second most abundant species landed by the pelagic fleet. This article looks at stocks in the North Sea.
