Stock discrimination of horse mackerel (Trachurus trachurus) in the Northeast Atlantic and Mediterranean Sea: integrating the results from different stock identification approaches ...

• Main Authors: Abaunza, P., Murta, A., Mattiucci, S., Cimmaruta, R., Nascetti, G., Magoulas, A., Sanjuan, A., Comesaña, S., Mackenzie, K., Molloy, J., Santos, A.T., Iversen, S., G.Dahle, Gordo, L., Stransky, C., Zimmermman, C., Santamaria, M.T., Ramos, P., Quinta, R., Pinto, A.L., Rug, A.
• Format: Article in Journal/Newspaper
• Language: unknown
• Published: ASC 2004 - EE - Theme session 2024
• Subjects: Fisheries and aquaculture; Technologies and data; Northeast Atlantic
• Online Access: https://dx.doi.org/10.17895/ices.pub.25349251; https://ices-library.figshare.com/articles/conference_contribution/Stock_discrimination_of_horse_mackerel_Trachurus_trachurus_in_the_Northeast_Atlantic_and_Mediterranean_Sea_integrating_the_results_from_different_stock_identification_approaches/25349251

No abstracts are to be cited without prior reference to the author.The goal of horse mackerel stock discrimination was tackled by integrating both established and innovative approaches such as genetic markers (allozymes, mtDNA, microsatellite DNA and SSCP), morphometry and parasites, tagging experiments and life history traits (growth, reproduction and distribution), within the EU-funded HOMSIR project. The sampling covered almost the whole distribution range of horse mackerel through 20 sampling localities. 200 fish per sampling site were collected taking in consideration the spawning season and temporal variation (two years of sampling). The results from genetic approaches (Multilocus Allozyme Electrophoresis, mtDNA and microsatellite DNA) showed that there was only slight genetic differentiation among sampling sites. Another genetic technique (SSCP), was successful in finding a genetic marker that demonstrated substructuring in horse mackerel populations. Several approaches (SSCP, morphometrics, ...