We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Genetic population structure and tools for the management of European sprat (Sprattus sprattus).
- Authors
McKeown, Niall J; Carpi, Piera; Silva, Joana F; Healey, Amy J E; Shaw, Paul W; van der Kooij, Jeroen
- Abstract
This study used RAD-seq-derived SNPs to explore population connectivity, local adaptation, and individual assignment in European sprat (Sprattus sprattus) and inform the alignment of management units with biological processes. F ST, clustering, and outlier analyses support a genetically cohesive population spanning the Celtic Sea-English Channel-North Sea-Kattegat (NE Atlantic) region. The lack of structure among the NE Atlantic samples indicates connectivity across current management boundaries. However, the assumption of demographic panmixia is cautioned against unless verified by a multidisciplinary approach. The data confirm high genetic divergence of a Baltic population (average F ST vs. NE Atlantic samples = 0.051) with signatures compatible with local adaptation in the form of outlier loci, some of which are shown to occur within exonic regions. The outliers permit diagnostic assignment of individuals between the NE Atlantic and Baltic populations and thus represent a "reduced panel" of markers for monitoring a potential mixed stock fishery within the western Baltic. Overall, this study provides information that may help refine spatial management boundaries of sprat and resources for genetic-assisted management.
- Subjects
RESOURCE management
- Publication
ICES Journal of Marine Science / Journal du Conseil, 2020, Vol 77, Issue 6, p2134
- ISSN
1054-3139
- Publication type
Academic Journal
- DOI
10.1093/icesjms/fsaa113