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MEDLEM database, a data collection on large Elasmobranchs in the Mediterranean and Black seas ArchiMer
Mancusi, Cecilia; Baino, Romano; Fortuna, Corina; De Sola, Luis Gil; Morey, Gabriel; Bradai, Mohamed Nejmeddine; Kallianotis, Argyrios; Soldo, Alen; Hemida, Farid; Saad, Adib Ali; Dimech, Mark; Peristeraki, Panagiota; Bariche, Michel; Clò, Simona; De Sabata, Eleonora; Castellano, Laura; Garibaldi, Fulvio; Lanteri, Luca; Tinti, Fausto; Pais, Antonio; Sperone, Emilio; Micarelli, Primo; Poisson, Francois; Sion, Letizia; Carlucci, Roberto; Cebrian-menchero, Daniel; Séret, Bernard; Ferretti, Francesco; El-far, Alaa; Saygu, Ismet; Shakman, Esmail A.; Bartoli, Alex; Guallart, Javier; Damalas, Dimitrios; Megalofonou, Persefoni; Vacchi, Marino; Bottaro, Massimiliano; Notarbartolo Di Sciara, Giuseppe; Follesa, Maria Cristina; Cannas, Rita; Kabasakal, Hakan; Zava, Bruno; Cavlan, Graziella; Jung, Armelle; Abudaya, Mohammed; Kolitari, Jerina; Barash, Adi; Joksimovic, Aleksandar; Marčeta, Bojan; Gonzalez Vilas, Luis; Tiralongo, Francesco; Giovos, Ioannis; Bargnesi, Filippo; Lelli, Stefano; Barone, Monica; Moro, Stefano; Mazzoldi, Carlotta; Charis, Charilaou; Abella, Alvaro Juan; Serena, Fabrizio; Colloca, Francesco; Cetkovic, Ilija.
The Mediterranean Large Elasmobranchs Monitoring (MEDLEM) database contains over 3000 records (more than 4000 individuals) of large elasmobranch species from 20 different countries around the Mediterranean and Black seas, observed from 1666 to 2017. The main species included in the archive are the devil fish (1 813 individuals), the basking shark (939 individuals), the blue shark (585 individuals) and the great white shark (337 individuals). In the last decades other species such as the shortfin mako (166 individuals), the spiny butterfly ray (138) and the thresher shark (174 individuals) were reported with an increasing frequency. This was possibly due to an increased public awareness on the conservation status of sharks, and a consequent development of...
Tipo: Text Palavras-chave: Bycatch; Databases; Geographical distribution; Large elasinobranchs; Mediterranean and Black seas; Sharks.
Ano: 2020 URL: https://archimer.ifremer.fr/doc/00649/76117/77080.pdf
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Otolith shape variation provides a marker of stock origin for north Atlantic bluefin tuna (Thunnus thynnus) ArchiMer
Brophy, Deirdre; Haynes, Paula; Arrizabalaga, Haritz; Fraile, Igaratza; Fromentin, Jean-marc; Garibaldi, Fulvio; Katavic, Ivan; Tinti, Fausto; Karakulak, F. Saadet; Macias, David; Busawon, Dheeraj; Hanke, Alex; Kimoto, Ai; Sakai, Osamu; Deguara, Simeon; Abid, Nouredinne; Santos, Miguel Neves.
Two stocks of bluefin tuna (Thunnus thynnus) inhabit the north Atlantic; the western and eastern stocks spawn in the Gulf of Mexico and the Mediterranean Sea respectively. Trans-Atlantic movements occur outside spawning time whereas natal homing maintains stock structure. Commercial fisheries may exploit a mixed assemblage of both stocks. The incorporation of mixing rates into stock assessment is precluded by uncertainties surrounding stock discrimination. Otolith shape descriptors were used to characterise western and eastern stocks of Atlantic bluefin tuna in the present study and to estimate stock composition in catches of unknown origin. Otolith shape varied with length and between locations and years. Within a restricted size range (200-297-cm fork...
Tipo: Text Palavras-chave: Elliptical Fourier analysis; Population structure; Stock mixture analysis.
Ano: 2016 URL: http://archimer.ifremer.fr/doc/00346/45745/45381.pdf
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