Research article - Peer-reviewed, 2023
Mixed-stock analysis of Atlantic herring (Clupea harengus): a tool for identifying management units and complex migration dynamics
Bekkevold, Dorte; Berg, Florian; Polte, Patrick; Bartolino, Valerio; Ojaveer, Henn; Mosegaard, Henrik; Farrell, Edward D.; Fedotova, Jelena; Hemmer-Hansen, Jakob; Huwer, Bastian; Trijoulet, Vanessa; Albertsen, Christoffer Moesgaard; Fuentes-Pardo, Angela P.; Groehsler, Tomas; Pettersson, Mats; Jansen, Teunis; Folkvord, Arild; Andersson, LeifAbstract
We developed and validated a mixed-stock analysis (MSA) method with 59 single-nucleotide polymorphisms selected from genome-wide data to assign individuals to populations in mixed-stock samples of Atlantic herring from the North and Baltic seas. We analysed 3734 herring from spawning locations and scientific catches of mixed feeding stocks to demonstrate a "one-fits-all" tool with unprecedented accuracy for monitoring spatio-temporal dynamics throughout a large geographical range with complex stock mixing. We re-analysed time-series data (2002-2021) and compared inferences about stock composition with estimates from morphological data. We show that contributions from the western Baltic spring-spawning stock complex, which is under management concern, have likely been overestimated. We also show that a genetically distinctive population of western Baltic autumn spawners, ascribed low fisheries importance, contributes non-negligible and potentially temporally increasing proportions to mixed-stock aggregations, calling for a re-evaluation of stock definitions. MSA data can be implemented in stock assessment and in a variety of applications, including marine ecosystem description, impact assessment of specific fleets, and stock-rebuilding plans.Keywords
clupeid; genetic stock identification; genomics; management units; migration; mixed-stock analysis; population structure; SNPPublished in
ICES Journal of Marine Science2023, volume: 80, number: 1, pages: 173-184
Publisher: OXFORD UNIV PRESS
Authors' information
Bekkevold, Dorte
Technical University of Denmark
Berg, Florian
Institute of Marine Research - Norway
Polte, Patrick
Johann Heinrich von Thunen Institute
Swedish University of Agricultural Sciences, Department of Aquatic Resources
Ojaveer, Henn
Technical University of Denmark
Ojaveer, Henn
University of Tartu
Mosegaard, Henrik
Technical University of Denmark
Farrell, Edward D.
University College Dublin
Farrell, Edward D.
Killybegs Fishermens Org
Fedotova, Jelena
Klaipeda University
Hemmer-Hansen, Jakob
Technical University of Denmark
Huwer, Bastian
Technical University of Denmark
Trijoulet, Vanessa
Technical University of Denmark
Albertsen, Christoffer Moesgaard
Technical University of Denmark
Fuentes-Pardo, Angela P.
Uppsala University
Groehsler, Tomas
Johann Heinrich von Thunen Institute
Pettersson, Mats
Uppsala University
Jansen, Teunis
Greenland Institute of Natural Resources
Jansen, Teunis
Technical University of Denmark
Folkvord, Arild
University of Bergen
Sustainable Development Goals
SDG14 Life below water
UKÄ Subject classification
Fish and Aquacultural Science
Publication Identifiers
DOI: https://doi.org/10.1093/icesjms/fsac223
URI (permanent link to this page)
https://res.slu.se/id/publ/121189