Atlantic Salmon Farms Shift to Open Seas,


Trying to Shake Off Lice

Atlantic salmon farming companies are designing huge pens to raise fish in the open seas in a radical shift from calm coastal waters where marine lice have slowed growth of the billion-dollar industry.

The drive for new designs by Norway, producer of 54 percent of all farmed Atlantic salmon in 2016, will have to cope with ocean storms that can rip cages and free thousands of fish.

Escapees disrupt natural stocks by breeding with..........................


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