Data from: Spatial dynamics and mixing of bluefin tuna in the Atlantic Ocean and Mediterranean Sea revealed using next generation sequencing

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Description:
The Atlantic bluefin tuna is a highly migratory species emblematic of the challenges associated with shared fisheries management. In an effort to resolve the species’ stock dynamics, a genome-wide search for spatially informative single nucleotide polymorphisms (SNPs) was undertaken, by way of sequencing reduced representation libraries. An allele frequency approach to SNP discovery was used, combining the data of 555 larvae and young-of-the-year (LYOY) into pools representing major geographical areas and mapping against a newly assembled genomic reference. From a set of 184,895 candidate loci, 384 were selected for validation using 167 LYOY. A highly discriminatory genotyping panel of 95 SNPs was ultimately developed by selecting loci with the most pronounced differences between western Atlantic and Mediterranean Sea LYOY. The panel was evaluated by genotyping a different set of LYOY (n= 326) and from these 77.8% and 82.1% were correctly assigned to western Atlantic and Mediterranean Sea origins, respectively. The panel revealed temporally persistent differentiation among LYOY from the western Atlantic and Mediterranean Sea (FST = 0.008, p=0.034). The composition of six mixed feeding aggregations in the Atlantic Ocean and Mediterranean Sea was characterized using genotypes from medium (n = 184) and large (n = 48) adults, applying population assignment and mixture analyses. The results provide evidence of persistent population structuring across broad geographic areas and extensive mixing in the Atlantic Ocean, particularly in the mid-Atlantic Bight and Gulf of St. Lawrence. The genomic reference and genotyping tools presented here constitute novel resources useful for future research and conservation efforts.
Auteur(s) :
Puncher, Gregory Neils

Puncher, Gregory Neils

University of New Brunswick
, Cariani, Alessia

Cariani, Alessia

University of Bologna
, Maes, Gregory E.

Maes, Gregory E.

KU Leuven
, Van Houdt, Jeroen

Van Houdt, Jeroen

KU Leuven
, Herten, Koen

Herten, Koen

KU Leuven
, Cannas, Rita

Cannas, Rita

University of Cagliari
, Rodriguez-Ezpeleta, Naiara

Rodriguez-Ezpeleta, Naiara

Marine Research Division; AZTI Tecnalia; Pasaia Gipuzkoa Spain
, Albaina, Aitor

Albaina, Aitor

University of the Basque Country
, Estonba, M. Andone

Estonba, M. Andone

University of the Basque Country
, Lutcavage, Molly

Lutcavage, Molly

University of Massachusetts Amherst
, Hanke, Alex

Hanke, Alex

Fisheries and Oceans Canada
, Rooker, Jay

Rooker, Jay

Texas A&M University
, Franks, James S.

Franks, James S.

University of Southern Mississippi
, Quattro, Joseph M.

Quattro, Joseph M.

University of South Carolina
, Basilone, Gualtiero

Basilone, Gualtiero

National Research Council
, Fraile, Igaratza

Fraile, Igaratza

University of Genoa
, Laconcha, Urtzi

Laconcha, Urtzi

University of the Basque Country
, Goñi, Nicolas

Goñi, Nicolas

University of Bologna
, Kimoto, Ai

Kimoto, Ai

University of Cagliari
, Macías, A. David

Macías, A. David

Spanish Institute of Oceanography
, Alemany, Francisco

Alemany, Francisco

Spanish Institute of Oceanography
, Deguara, Simeon

Deguara, Simeon

Istanbul University
, Zgozi, Salem W.

Zgozi, Salem W.

Marine Biology Research Center; Tripoli-Tajura Libya
, Garibaldi, Fulvio

Garibaldi, Fulvio

University of Genoa
, Oray, Isik K.

Oray, Isik K.

Istanbul University
, Karakulak, F. Saadet

Karakulak, F. Saadet

Istanbul University
, Abid, Noureddine

Abid, Noureddine

National Institute of Fisheries Research; Regional Centre of Tangier; Tanger Morocco
, Santos, Miguel N.

Santos, Miguel N.

Portuguese Sea and Atmosphere Institute
, Addis, Piero

Addis, Piero

University of Cagliari
, Arrizabalaga, Haritz

Arrizabalaga, Haritz

Marine Research Division; AZTI Tecnalia; Pasaia Gipuzkoa Spain
et Tinti, Fausto

Tinti, Fausto

University of Bologna
Dépôt source:
Dryad
URL:
https://doi.org/10.5061/dryad.2f7v9
Date de publication:
2018-01-31
Mots-clés (en):
Genomics/Proteomics, Thunnus thynnus

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Citation selon les normes APA:
Data from: Spatial dynamics and mixing of bluefin tuna in the Atlantic Ocean and Mediterranean Sea revealed using next generation sequencing. (2018). [Data set]. Dryad. https://doi.org/10.5061/dryad.2f7v9
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