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Tavoitteet The project studies the occurrence of genetic diversity in commercially exploited fish species and the use of the information obtained in the conservation of diversity, the identification of fish populations and individuals, the planning of fisheries regulation, and aquaculture. The project carries out population genetic research on the genetic structure of fish populations, their genetic differences, the amount of genetic variation and evolutionary history. The variation of DNA microsatellite markers is also used to estimate proportions of original stocks in salmon (Salmo salar) catches from the Baltic Sea and to identify the origin of individual fish caught when assessing the effects of fish stocking. An analysis based on DNA markers is also used to determine the level of relatedness between the individuals of the broodstocks. Tulokset In 2013, the analysis of brown trout (Salmo trutta) populations in the Gulf of Finland area was completed (EU Interreg HEALFISH 2010?2013). In addition, salmon catches from three sea areas (1,300 fish) were analysed as part of the permanent monitoring activities included in the EU Data Collection Programme. A national DNA microsatellite standard set of 15 gene loci can now be offered as an analysis service for salmon, brown trout, whitefish (Coregonus lavaretus), vendace (Coregonus albula), rainbow trout (Oncorhynchus mykiss), Arctic charr (Salvelinus alpinus), grayling (Thymallus thymallus) and pikeperch (Sander lucioperca) analysis. Vaikuttavuus Information on the genetic structure of fish populations is used by all operators planning the exploitation and management of fish stocks as well as by Centres for Economic Development, Transport and the Environment, operators carrying out fish stocking and fish farmers. Analysis of relatedness can be used in aquaculture to manage kinship and to prepare fertilisation plans. Analysis of stock proportions in catches provides information on which fish stocks are harvested in different sea areas and to what extent. It is especially important to estimate the proportion of wild salmon in the catch at different times and in different parts of the Baltic Sea. The analysis also enables the study of genetic differences between stocks in the sea area, without any actual external marking. The analysis of stock proportions in salmon catches is part of the EU Data Collection Programme. Vastaava tutkija Koljonen Marja-Liisa, Finnish Game and Fisheries Research Institute
Yhteystiedot
Yhteistyötahot Providers of funding: EU Data Collection Programme, EU Interreg Central Baltic Programme (2010?2012), EMFF, Ministry for Foreign Affairs of Finland, Centres for Economic Development, Transport and the Environment , National cooperation: Department of Agricultural Sciences, University of Helsinki; Centres for Economic Development, Transport and the Environment; MTT Agrifood Research Finland. , International cooperation: ICES working groups: WGBAST, WGAGFM and SIMWG. Estonian University of Life Sciences, Fiskeriverket, Alaska Fisheries Science Center., Hankkeen kesto 1997 - Hankkeen vaihe: päättynyt
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