A1 Journal article (refereed)
Genetic-based evaluation of management units for sustainable vendace (Coregonus albula) fisheries in a large lake system (2022)

Karjalainen, J., Sjövik, R., Väänänen, T., Sävilammi, T., Sundberg, L.-R., Uusi-Heikkilä, S., & Marjomäki, T. J. (2022). Genetic-based evaluation of management units for sustainable vendace (Coregonus albula) fisheries in a large lake system. Fisheries Research, 246, Article 106173. https://doi.org/10.1016/j.fishres.2021.106173

JYU authors or editors

Publication details

All authors or editors: Karjalainen, Juha; Sjövik, Rosanna; Väänänen, Tuula; Sävilammi, Tiina; Sundberg, Lotta-Riina; Uusi-Heikkilä, Silva; Marjomäki, Timo J.

Journal or series: Fisheries Research

ISSN: 0165-7836

eISSN: 1872-6763

Publication year: 2022

Volume: 246

Article number: 106173

Publisher: Elsevier

Publication country: Netherlands

Publication language: English

DOI: https://doi.org/10.1016/j.fishres.2021.106173

Publication open access: Openly available

Publication channel open access: Partially open access channel

Publication is parallel published (JYX): https://jyx.jyu.fi/handle/123456789/78689

Abstract

The goal of the processing industry, trade and consumers is to get eco-labelled freshwater fish products from sustainable fisheries into the market as soon as possible. The fourth largest natural lake system in Europe, the Saimaa lake system supports a fishery for vendace (Coregonus albula). Certification of the fishery requires an understanding of population structure to help determine the number and spatial extent of management units. In this study, we analysed the genetic diversity of local vendace populations in the Saimaa lake system and aimed to identify the conservation and management units of vendace. Within the Saimaa, the genetic divergence between local populations of vendace was weak and their genetic divergence did not follow an isolation by geographic distance pattern. Vendace has potential to disperse effectively within and between local populations in different lake basins. Even if we observed subtle genetic divergence within our study systems, available information showed no significant evidence that the local populations had unique evolutionarily significant traits. The local populations of the Saimaa lake system seem to have similar life history and morphological traits as in the whole Central Finland lake district. The conservation of genetic diversity seemed not to require basin-specific actions and we conclude that management of local vendace populations of Saimaa as one management unit is advisable.

Keywords: fish populations; fish stock management; vendace; population genetics; microsatellites; fishery; ecological sustainability; environmental labels

Free keywords: Coregonids; Designatable unit; Ecolabelling; Genetic distance; Fish stock; Saimaa lake system

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Related projects

Ministry reporting: Yes

Reporting Year: 2022

JUFO rating: 1