Acronym NA
Category
Fisheries
Aquaculture
Title Villaksprosjektet: Faglig bistand i evalueringsarbeid - The wild salmon project: Technical assistance in evaluation work
Programme National Programme
Instrument (FP6)
Contact Type (FP7)
Strand (Interreg)
NA
Theme (FP7)
Activity Area (FP6)
Regional Area (Interreg)
Action (COST)
NA
Specific Programme (FP7)
NA
Funding source National
Coordinator Jan Arve Gjøvik
Coordinator email jan.gjovik@oppdal.com
Coordinator institution
NINA - Norwegian Institute for Nature Research (Norway)
Institutions involved
NA
Start year 2010
End year 2011
Funding (€) € 41,231
Website https://www.fhf.no/prosjekter/prosjektbasen/900555/
Summary This project is based on a critical review of scientific publications, several statistical sources and review reports conducted by Nofima and NINA. The purpose has been to test the following hypotheses: 1. Escaped farmed salmon can cross with wild salmon. Over time, this will reduce the genetic variation within the wild salmon populations, add unwanted genetic material to the wild salmon, and weaken the wild salmon's adaptation to its environment. 2. Cross-breeding fry can outcompete and displace wild salmon fry in the river, thereby reducing the production of wild salmon smolts and the total productivity of the watercourse. 3. Salmon lice multiply on farmed salmon, and infect wild salmon and sea otters to an extent that is not sustainable. The study does not include the possible spread of infection other than salmon lice, nor any other adverse environmental impacts of salmon farming. The background for the study is statements from several professional circles that wild salmon in Norway are endangered, based on reference to the catch statistics for wild salmon and other stock calculations. The approach to the issues has therefore included an assessment of the statistics that form the basis for this consideration.The main conclusion is that the hypotheses must be rejected. Then a hypothesis about marine mortality caused by a lack of energy-rich food in an important phase of life is presented as an alternative explanation for the wild salmon's problems.
Keywords
Parasite;
Environmental impact;
Fish;
Salmon;
Escapes;
Marine Region
76
Not associated to marine areas
0
Marine Region Map