Journal article
A baseline for the genetic stock identification of Atlantic herring, Clupea harengus, in ICES Divisions 6.a, 7.b-c
EDF Scientific Ltd.1
Scottish Pelagic Fishermen’s Association Ltd.2
Pelagic Freezer Trawler Association3
Uppsala University4
National Institute of Aquatic Resources, Technical University of Denmark5
Section for Marine Living Resources, National Institute of Aquatic Resources, Technical University of Denmark6
Marine Scotland Science7
University College Dublin8
Marine Institute9
University of Bergen10
Section for Monitoring and Data, National Institute of Aquatic Resources, Technical University of Denmark11
...and 1 moreAtlantic herring in International Council for Exploration of the Sea (ICES) Divisions 6.a, 7.b-c comprises at least three populations, distinguished by temporal and spatial differences in spawning, which have until recently been managed as two stocks defined by geographical delineators. Outside of spawning the populations form mixed aggregations, which are the subject of acoustic surveys.
The inability to distinguish the populations has prevented the development of separate survey indices and separate stock assessments. A panel of 45 single-nucleotide polymorphisms, derived from whole-genome sequencing, were used to genotype 3480 baseline spawning samples (2014-2021). A temporally stable baseline comprising 2316 herring from populations known to inhabit Division 6.a was used to develop a genetic assignment method, with a self-assignment accuracy greater than 90%.
The long-term temporal stability of the assignment model was validated by assigning archive (2003-2004) baseline samples (270 individuals) with a high level of accuracy. Assignment of non-baseline samples (1514 individuals) from Divisions 6.a, 7.b-c indicated previously unrecognized levels of mixing of populations outside of the spawning season.
The genetic markers and assignment models presented constitute a 'toolbox' that can be used for the assignment of herring caught in mixed survey and commercial catches in Division 6.a into their population of origin with a high level of accuracy.
Language: | English |
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Publisher: | The Royal Society |
Year: | 2022 |
Pages: | 220453 |
ISSN: | 20545703 |
Types: | Journal article |
DOI: | 10.1098/rsos.220453 |
ORCIDs: | 0000-0002-0070-9154 , 0000-0002-4085-6968 , Bekkevold, Dorte , 0000-0002-9262-5627 , 0000-0002-6036-9040 , 0000-0002-4763-0590 and 0000-0002-7372-9076 |
Fisheries Genetic assignment Management Northwest herring Stock identification West of Scotland herring
Q Science fisheries genetic assignment management stock identification