Advancing the Aquaculture Agenda
Workshop Proceedings
Aquaculture now provides more than 50% of the global supply of fisheries products for direct human consumption. This conference proceedings addresses key policy challenges of the aquaculture sector. Policy makers, academics, industry representatives, NGOs and international organisations gathered to discuss the critical economic, environmental and social aspects of aquaculture. This publication presents a selection of key issues covered by the workshop and includes a large number of country case studies, which provide specific examples of national approaches to aquaculture management.
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Norway: Escapes of fish from aquaculture
The environmental effects of escapes are acknowledged as a key environmental problem related to on-growing of fish in sea cages. Several recent literature reviews on the effect of salmon escapees have concluded that strong evidence of genetic and phenotypic differences between farmed and wild salmon exists and that genetic change has occurred in some wild populations that escapees have mixed with. Salmon that escaped from Norwegian fish farms between 2006 – 2009 represent 0.1 – 0.3% of the total amount of fish in the fish farms. Compared to the number of wild salmon migrating to the Norwegian coastline however, escaped farmed salmon represent 20-100% annually.
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