Interactions between Aquaculture and Wild Stocks of Atlantic Salmon and other Diadromous Fish Species: Science and Management, Challenges and Solutions

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Abstract
Paradoxically, at a time when there is serious concern about the status of wild Atlantic salmon stocks, the abundance of salmon in the North Atlantic Ocean has probably never been higher as a result of the rapid growth of salmon farming. Since the early 1980s, salmon farming has become a major industry, with production in 2004 of approximately 800 000 t in the North Atlantic and approximately 1.15 million t worldwide ( ICES, 2005 ). Progress has been made in managing the interactions between farmed and wild salmon, and collaboration between farmed and wild salmon interests is now improved. However, wild stocks are in a weakened state, and there are concerns about the disease, parasite, genetic, and ecological impacts of salmon farming on wild salmon stocks. A regime is required under which the industry can continue to prosper, but at the same time, one under which wild stocks are safeguarded so as to maintain the social and economic benefits from both wild and farmed salmon. This has not been and will not be easy.

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