FN Archimer Export Format PT C TI GenoPopTaille. Moving stock assessment into the future BT AF MARANDEL, Florianne BIAIS, Gerard BIDAULT, Adeline CHARRIER, Grégory CORNETTE, Florence LAPEGUE, Sylvie LAROCHE, Jean LE CAM, Sabrina STEPHAN, Eric TRENKEL, Verena LORANCE, Pascal AS 1:1;2:2;3:4;4:4;5:3;6:3;7:4;8:3,4;9:5;10:1;11:1; FF 1:PDG-RBE-EMH;2:PDG-RBE-HGS;3:;4:;5:PDG-RBE-SG2M-LGPMM;6:PDG-RBE-SG2M;7:;8:;9:;10:PDG-RBE-EMH;11:PDG-RBE-EMH; C1 IFREMER, EMH, 44000 Nantes, France IFREMER, HGS, 17137, L'Houmeau, France IFREMER, SG2M-LGPMM, 17390, La Tremblade, France LEMAR, IUEM Technopôle Brest-Iroise, 29280 Plouzané, France A.P.E.C.S. (Association pour l’Étude et la Conservation des Sélaciens), 29211 Brest, France C2 IFREMER, FRANCE IFREMER, FRANCE IFREMER, FRANCE UEB, FRANCE APECS, FRANCE SI NANTES LA ROCHELLE LA TREMBLADE SE PDG-RBE-EMH PDG-RBE-HGS PDG-RBE-SG2M-LGPMM PDG-RBE-SG2M UR https://archimer.ifremer.fr/doc/00343/45439/44960.pdf LA English DT Poster AB At the ecosystem level, sustainable exploitation of fisheries resources depends not only on the status of target species but also on that of bycatch species, some of which are even more sensitive to exploitation. This is the case for a number of elasmobranchs (skates, rays and sharks) species whose abundance declined during the 20th century. Further, the biology of elamobranchs is still poorly known and traditional fisheries stock assessment methods using fisheries catches and scientific survey data for estimating abundance are expensive or even inapplicable due to the small numbers observed. The GenoPopTaille project attempts to apply to the case of the thornback ray (Raja clavata) recent genetic-based methods for absolute population abundance estimation as well as characterizing its genetic diversity and population structure in the Northeast Atlantic. The poster will present the objectives, challenges and progress made so far by the project. PY 2016 PD JUL ID 45439 ER EF