Farmed Atlantic Salmon in Nature

  • Bror Jonsson
  • Nina Jonsson
Part of the Fish & Fisheries Series book series (FIFI, volume 33)


Farmed Atlantic salmon escape unintentionally from hatcheries and fish farm and occur both in the Atlantic and the Pacific Oceans. These fish exploit natural feeding areas in fresh water and at sea, introgress natural populations (Fleming et al. 2000; O’Reilly et al. 2006; Castillo et al. 2008), and reduce the survival of wild populations that are exposed to salmon farms (Ford and Myers 2008). Worldwide salmonid aquaculture production has grown rapidly during the last 30–40 years, from less than 200,000 tonnes in 1970 to over one million tonnes in 2000 (Tacon 2003), and the production has continued to increase to more than 1.4 million tonnes in 2007 (FAO 2010). With this increase, the number of escaped farmed salmon has also increased through regular low-level leakages and episodic events such as wreckage of rearing pens at sea because of heavy weather.


Atlantic Salmon Brown Trout Wild Fish Wild Salmon Farm Male 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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© Springer Science+Business Media B.V.  2011

Authors and Affiliations

  1. 1.Norwegian Institute for Nature ResearchOsloNorway

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