Forsøksdyr: The role of escaped farmed fish as a vector for virus transmission to wild juvenile salmon populations in rivers.

Godkjenningsdato 15.07.2020

Godkjenningsperiode 10.08.2020-15.02.2022

The aim of the study is to investigate the role of escaped farmed fish as a vector for transferring viruses prevalent in fish farming to juvenile wild salmon in rivers. Salmon parr is susceptible to infection with these viruses but it is unlikely that fish will experience significant morbidity or mortality due to possible infection with these viruses.
The study will provide a valuable information about the potential role of escaped farmed fish as virus vector. The results from the study will be used in the evaluation and risk assessment of the environmental impact of aquaculture and giving advice to regulation authorities.
We will use a total of 1280 salmon parr. The number of fish was selected after a thorough consideration for the minimum number needed at each sampling point and the number of sampling points required to study infection time-course.