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.
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.
