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Rouyer Tristan Bernard Serge Kerzerho Vincent Giordano Nicolas Giordano François Ellul Salvu Ellul Giovanni Derridj Olivier Canet Rémy Deguara Simeon Wendling Bertrand Bonhommeau Sylvain 《Environmental Biology of Fishes》2022,105(5):635-644
Environmental Biology of Fishes - The purse seine fishery in the Mediterranean represents about 60% of the international catch for Atlantic Bluefin Tuna (Thunnus thynnus). Yet, tagging operations... 相似文献
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Enrique Rodriguez-Marin Mauricio Ortiz José María Ortiz de Urbina Pablo Quelle John Walter Noureddine Abid Piero Addis Enrique Alot Irene Andrushchenko Simeon Deguara Antonio Di Natale Mark Gatt Walter Golet Saadet Karakulak Ai Kimoto David Macias Samar Saber Miguel Neves Santos Rafik Zarrad 《PloS one》2015,10(10)
The compiled data for this study represents the first Atlantic and Mediterranean-wide effort to pool all available biometric data for Atlantic bluefin tuna (Thunnus thynnus) with the collaboration of many countries and scientific groups. Biometric relationships were based on an extensive sampling (over 140,000 fish sampled), covering most of the fishing areas for this species in the North Atlantic Ocean and Mediterranean Sea. Sensitivity analyses were carried out to evaluate the representativeness of sampling and explore the most adequate procedure to fit the weight-length relationship (WLR). The selected model for the WLRs by stock included standardized data series (common measurement types) weighted by the inverse variability. There was little difference between annual stock-specific round weight-straight fork length relationships, with an overall difference of 6% in weight. The predicted weight by month was estimated as an additional component in the exponent of the weight-length function. The analyses of monthly variations of fish condition by stock, maturity state and geographic area reflect annual cycles of spawning and feeding behavior. We update and improve upon the biometric relationships for bluefin currently used by the International Commission for the Conservation of Atlantic Tunas, by incorporating substantially larger datasets than ever previously compiled, providing complete documentation of sources and employing robust statistical fitting. WLRs and other conversion factors estimated in this study differ from the ones used in previous bluefin stock assessments. 相似文献
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Spatial dynamics and mixing of bluefin tuna in the Atlantic Ocean and Mediterranean Sea revealed using next‐generation sequencing 下载免费PDF全文
Gregory N. Puncher Gregory E. Maes Jeroen Van Houdt Koen Herten Rita Cannas Naiara Rodriguez‐Ezpeleta Aitor Albaina Andone Estonba Molly Lutcavage Alex Hanke Jay Rooker James S. Franks Joseph M. Quattro Gualtiero Basilone Igaratza Fraile Urtzi Laconcha Nicolas Goñi Ai Kimoto David Macías Francisco Alemany Simeon Deguara Salem W. Zgozi Fulvio Garibaldi Isik K. Oray Firdes Saadet Karakulak Noureddine Abid Miguel N. Santos Piero Addis Haritz Arrizabalaga Fausto Tinti 《Molecular ecology resources》2018,18(3):620-638
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 genomewide 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 = .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. 相似文献
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