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Spatial variability of Chondrichthyes in the northern Mediterranean ArchiMer
Follesa, Maria C.; Marongiu, Martina F.; Zupa, Walter; Bellodi, Andrea; Cau, Alessandro; Cannas, Rita; Colloca, Francesco; Djurovic, Mirko; Isajlovic, Igor; Jadaud, Angelique; Manfredi, Chiara; Mulas, Antonello; Peristeraki, Panagiota; Porcu, Cristina; Ramirez-amaro, Sergio; Salmeron Jimenez, Francisca; Serena, Fabrizio; Sion, Letizia; Thasitis, Ioannis; Cau, Angelo; Carbonara, Pierluigi.
Thanks to the availability of the MEDITS survey data, a standardized picture of the occurrence and abundance of demersal Chondrichthyes in the northern Mediterranean has been obtained. During the spring-summer period between 2012 and 2015, 41 Chondrichthyes, including 18 sharks (5 orders and 11 families). 22 batoids (3 orders and 4 families) and 1 chimaera, were detected from several geographical sub-areas (GSAs) established by the General Fisheries Commission for the Mediterranean. Batoids had a preferential distribution on the continental shelf (10-200 m depth). while shark species were more frequent on the slope (200-800 m depth). Only three species, the Carcharhiniformes Galeus melastomus and Scyliorhinus canicida and the Torpediniformes Torpedo...
Tipo: Text Palavras-chave: Fish; Chondrichthyes; Bottom trawl surveys; Distribution; Abundance; Mediterranean.
Ano: 2019 URL: https://archimer.ifremer.fr/doc/00600/71220/69591.pdf
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Spatio-temporal patterns of macrourid fish species in the northern Mediterranean Sea ArchiMer
García-ruiz, Cristina; Hidalgo, Manuel; Carpentieri, Paolo; Fernandez-arcaya, Ulla; Gaudio, Palma; González, Maria; Jadaud, Angelique; Mulas, Antonello; Peristeraki, Panagiota; Rueda, José Luis; Vitale, Sergio; D’onghia, Gianfranco.
The present study describes for the first time the spatial distribution of five macrourid species throughout the Mediterranean Sea and analyses depth, geographical and time-related trends regarding their abundance, biomass and mean fish weight. The data were collected as part of the MEDITS annual bottom trawl survey carried out by several European Mediterranean countries from 1994 to 2015, using the same standardized gear and sampling protocol. The most represented species in terms of abundance and biomass was Coelorinchus caelorhincus. The bathymetric trend was different for each species. The shallowest occurring species was C. caelorhincus, followed by Hymenocephalus italicus and Nezumia sclerorhynchus, while Nezumia aequalis and Trachyrincus scabrus...
Tipo: Text Palavras-chave: Macrourids; Mediterranean; Bathymetric distribution; Geographic distribution; Spatio-temporal trends; Deep-sea; Trawl survey.
Ano: 2019 URL: https://archimer.ifremer.fr/doc/00489/60057/63337.pdf
Registros recuperados: 2
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