The MRI's risk assessment due to possible genetic mixing from salmon farming in sea cages in the Westfjords and Eastfjords was discussed at a large meeting hosted by the Ministry of Industry and Innovation last week. At the meeting, it was reported, among other things, that research has been conducted at Matís on the stock genetics of salmonids.
In attendance meetings on the MRI's Risk Assessment due to possible genetic mixing from salmon farming held by the Ministry of Industry and Innovation on 27 September, Sigurður Guðjónsson, Director General of the Marine Research Institute, presented the results of a new peer-reviewed article on salmon genetics in Europe: A microsatellite of European stock for genetic stock.Salmo salar L.). Sigurður is a co-author with Kristin Ólafsson who worked for Matís and was studying for a doctorate in salmon stock genetics. The authors of the article dedicated the article to Kristin's memory, but he passed away on March 22. Kristin's contribution was important for the technical development of the study and the analysis of Icelandic salmon stocks.
Results of the article, which is accessible here, show that it is possible to trace the origin of salmon that is caught in the sea by genotyping and see what it is from. The genealogy of European salmonids is outlined in the new article. Icelandic stock genetic research has revealed genetic variations between Icelandic salmon stocks and shown that each has its own special stock, but Kristinn published these results in a peer-reviewed article in 2014, the image below is from that article.
Olafsson, K., Pampoulie, C., Hjorleifsdottir, S., Gudjonsson, S., and Hreggvidsson, GO 2014. Present-day genetic structure of Atlantic Salmon (Salmo salar) in Icelandic Rivers and ice-cap retreat models. PLoS ONE, 9: e86809.
At the meeting, chaired by Þorgerður Katrín Gunnarsdóttir, Minister of Fisheries and Agriculture, Dr. Geir Lasse Taranger, from the Norwegian Institute of Marine Research (Havforskningsinstituttet) on risk assessment in Norwegian aquaculture and a new so-called "traffic light system". Bára Gunnlaugsdóttir from Stofnfisk talked about the use of larger juveniles and late puberty. It was stated in Bára's case that the research results show that releasing hens are less likely to affect wild strains than releasing females.
Matís is currently working on a research project with the Marine Research Institute on the genetic effects of salmon farming on wild salmon stocks with a grant from the Environmental Fund for Aquaculture, which has been managed by Guðbjörg Ólafsdóttir, an expert at Matís. The project falls under Matís' professional emphasis on a safe and sustainable food value chain.
