Questions interaction between farmed and wild salmon

Odd Grydeland A new study published in the Public Library of Science Journal that correlates the decline of wild salmonids on both coasts of Canada to the incidence of salmon farming takes a very narrow perspective on a complex issue, says a recently issued press release from CAIA, the national organization representing local aquaculture groups in Canada. "There are many threats and challenges facing the survival of wild salmon, such as urbanization, forestry, agriculture, mining, transportation and climate change," said Ruth Salmon, Executive Director of CAIA. "To bring it down to one issue, such as salmon aquaculture, is far too simplistic." The press release goes on to state that while this study cites salmon farming as a significant cause for concern to wild stocks, there are many other studies that support a different view. For example, recent findings of the BC Pacific Salmon Forum's 2007 research program show adult pink salmon returns to the Broughton Archipelago in 2007 were similar or slightly improved relative to 2005, the brood year for last year’s fish. And according to the Department of Fisheries and Oceans website, there is little evidence to support the suggestion that the presence of salmon farms increases the risk of disease in wild stocks. According to CAIA, the lack of risk is, in part, due to the fact that all aquaculture operations in Canada must meet rigorous federal, provincial and international environmental standards. It states that Canada has established some of the most stringent environmental standards of all aquaculture-producing countries. "These standards, based on the best available scientific research, are in place to minimize and manage any potential risks associated with aquaculture operations" says the release. Ruth Salmon goes on to say that "The Canadian aquaculture industry does not take the issue of declining wild salmon stocks lightly. We recognize the concerns of interactions with wild fish populations and work with government, scientists, and others to actively address them. Both wild and farmed salmon share the same environment - so it is in everyone's best interest to collaborate on preserving the health of our marine resource".