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Norway scientists tackle sea lice blight on fish farming

ITN News Editor
By ITN News Editor November 10, 2018 12:57

Norway scientists tackle sea lice blight on fish farming

Norway has built the world’s biggest salmon-farming industry. But it wants to get bigger. With their lucrative oil fields now in decline, Norwegians have ambitious plans for aquaculture to power their economy far into the future. But there’s one major fly in the ointment…lice.

Sea lice levels have risen in Norway in the second half of this year, leading to earlier harvesting, lower weight of fish and higher mortality rate. Also a problem in other countries, lice tend to concentrate in the more stagnant waters of Norway’s bays and fjords where fish farms are now based.

Researchers from Sea Lice Research Centre at the University of Bergen are looking for ways to combat the sea lice parasites that thrive in salmon cages.One in five salmon farmed in Norway dies before reaching maturity, partly due to tiny blood-sucking lice that latch onto the outside of the pink fish.

The prevalence of sea lice at Norwegian salmon and trout farming sites also threatens wild salmon, with regular ocean storms ripping cages and free thousands of potentially infected fish.

ITN News Editor
By ITN News Editor November 10, 2018 12:57
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