Mutual impact of wild and cultured Atlantic salmon in Norway
Original version
This report is not to be cited without prior reference to the authorsAbstract
The development and current status of the fish farming industry,
enhancernent and sea ranching of salmon in Norway are briefly
described, and an account is given of the natural salmon river
populations in different parts of the country.
Record of cultured salmon in the open sea, coastal waters and
rivers are briefly reviewed, and so are also migration studies on
liberated farmed salmon. Diseases common to wild and cultured
populations are described and discussed in relation to mutual impact.
The current situation is discussed in relation to actual and potential
effects on natural gene pools and spreading of disease agents.
Initiatives to protect natural gene pools are discussed, and
experirnents to gain additional knowledge of the genetic ressources are
outlined.