Cermaq Fails to Control Sea Lice, Despite New Hydrolicer

Co-founder Bonny Glambeck collects samples beside Cermaq’s Hydrolicer in Millar Channel

Cermaq is still having problems with sea lice on their Clayoquot Sound salmon farms. Just last week (mid-September), lice numbers at their Dixon Bay open-net pen operation hit 10.3 lice per fish—more than three times over the threshold for treatment. Despite trying a variety of new treatment methods, Cermaq is failing to control sea lice.

Wild juvenile Chum salmon loaded with salmon lice

Clayoquot salmon lice outbreak devastating

A massive outbreak of salmon lice in the Clayoquot Sound UNESCO Biosphere Reserve is threatening to wipe out this year’s salmon runs. Cermaq’s documentation on salmon lice for April show that the numbers of salmon lice on seven of their fourteen Clayoquot farm sites are up to ten times higher than the threshold which requires treatment. The regulatory threshold is three motile salmon lice per farm fish.

There are 20 open net-pen salmon farms in Clayoquot Sound, all located on wild salmon migration routes. The salmon lice outbreak is occurring as wild salmon smolts are leaving Clayoquot’s rivers to begin their life at sea.