A cool solution:Grieg is introducing semi-closed cages to three of its farms in British Columbia

摘要

AFTER trialling a semi-closed solution at its salmon farms off the Sunshine Coast region in British Columbia, Canada, Grieg Seafood has announced it will be going ahead with the installation of this system at all three of its sites in Esperanza Inlet,off the west coast ofVancouver Island.The new CO2L Flow system (pronounced "Cool Flow”) is a form of semi-closed containment that allows farmers to raise or lower custom-designed farm enclosures to ensure the farmed fish benefit from natural ocean conditions, while also providing protectionfor wild salmon.The system has been used successfully to rear several generations offish at Grieg’s farms in the Sunshine Coast region. In all the trials, farmers noted better growth, lower mortality, better feed conversion and, most significantly, a dramatic reduction in the need for sea lice treatments.