An Integrated Approach to Understanding Parasite Abundance and Distribution
by Simon Jones and Richard Beamish
Edition: 1st., 2011
It is important to keep in mind that salmon farming exists in two oceans, the Atlantic and the Pacific. The latter, specifically along the coast of British Columbia, is specific in that it takes place in the area inhabited by very large stocks of wild salmon. The species farmed there is largely the Atlantic salmon, more amenable to farming than the Pacific salmon.Here too, the greatest concern presents the sea louse, L. salmonis. However, the most recent investigations have shown that this sea louse is not genetically identical with the Atlantic sea louse known under the same name. It has been established that the sea lice from the farmed salmon are able to infect wild Pacific salmon. However, no evidence was found that this infection has very serious effects on the wild stocks. Indeed, the control measures in British Columbia aimed at curbing this infection proved to be more effective and required less effort
than elsewhere. The concern exists that this might not continue and that the existing measures might cease to be effective.