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Auteur Garcia-Ruiz, C.; Hidalgo, M.; Carpentieri, P.; Fernandez-Arcaya, U.; Gaudio, P.; Gonzalez, M.; Jadaud, A.; Mulas, A.; Peristeraki, P.; Luis Rueda, J.; Vitale, S.; D'Onghia, G. doi  openurl
  Titre Spatio-temporal patterns of macrourid fish species in the northern Mediterranean Sea Type Article scientifique
  Année (down) 2019 Publication Revue Abrégée Sci. Mar.  
  Volume 83 Numéro Pages 117-127  
  Mots-Clés abundance; assemblages; bathyal; bathymetric distribution; deep-sea; distributions; geographic distribution; ionian sea; macrourids; Mediterranean; megafauna; population-structure; spatio-temporal trends; trawl survey; trophic relationships; upper slope; western  
  Résumé 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 were the deepest. Overall, the mean weight of all the species increased with depth. C. caelorhincus and H italicus occurred in the entire study area: the first species showed relatively high catches in most areas, while the second was more abundant in the central and easternmost areas. N. aequalis and T. scabrus were mainly reported in the western basin, and N. sclerorhynchus in the central-eastern areas of the Mediterranean. An increasing inter-annual trend in abundance was only detected for C. caelorhincus and N. sclerorhynchus, while variable fluctuations were observed in the other species.  
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  Auteur institutionnel Thèse  
  Editeur Lieu de Publication Éditeur  
  Langue English Langue du Résumé Titre Original  
  Éditeur de collection Titre de collection Titre de collection Abrégé  
  Volume de collection Numéro de collection Edition  
  ISSN 0214-8358 ISBN Médium  
  Région Expédition Conférence  
  Notes WOS:000504829900009 Approuvé pas de  
  Numéro d'Appel MARBEC @ isabelle.vidal-ayouba @ collection 2701  
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Auteur Keller, S.; Hidalgo, M.; Alvarez-Berastegui, D.; Bitetto, I.; Casciaro, L.; Cuccu, D.; Esteban, A.; Garofalo, G.; Gonzalez, M.; Guijarro, B.; Josephides, M.; Jadaud, A.; Lefkaditou, E.; Maiorano, P.; Manfredi, C.; Marceta, B.; Micallef, R.; Peristeraki, P.; Relini, G.; Sartor, P.; Spedicato, M.T.; Tserpes, G.; Quetglas, A. doi  openurl
  Titre Demersal cephalopod communities in the Mediterranean: a large-scale analysis Type Article scientifique
  Année (down) 2017 Publication Revue Abrégée Mar. Ecol.-Prog. Ser.  
  Volume 584 Numéro Pages 105-118  
  Mots-Clés biodiversity; population-dynamics; fisheries; gulf; Bottom trawl surveys; fish assemblages; Mediterranean; continental-shelf; life-history; fluctuations; upper slope; Cephalopods; medits; catalan sea; Community analysis; Environmental gradients  
  Résumé Cephalopod assemblages at the scale of the entire Mediterranean Sea were analysed using information from 2 decades of standardized scientific bottom trawl surveys. Western and eastern assemblages (6 yr of data) were compared using a combined approach of multivariate ordination techniques and non-linear regressions. These methods enabled us to distinguish assemblages and simultaneously analyse the influence of geographic, bathymetric and environmental (sea surface temperature and chlorophyll a concentration) gradients on observed community patterns. Despite few differences in species composition between sub-basins, the relative contribution of species differed. Bathymetry was the primary structural driver for the cephalopod communities of both basins, and contributed to 3 assemblages (shallow water, upper slope and middle slope). Winter temperature influenced community assemblages more strongly in the western than in the eastern basin, in contrast to a small but consistent winter productivity influence on community assemblages in both basins. Thus, the environmental parameters analysed did not cause an immediate change in cephalopod assemblages, but rather an effect lagged by several months. Differences in the relative importance of environmental drivers show that different processes operate in the 2 basins. These results demonstrate similarities and differences between Mediterranean basins regarding important cephalopod functional groups. This information should help integrative ecosystem management approaches currently used in fisheries and conservation management.  
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  Auteur institutionnel Thèse  
  Editeur Lieu de Publication Éditeur  
  Langue English Langue du Résumé Titre Original  
  Éditeur de collection Titre de collection Titre de collection Abrégé  
  Volume de collection Numéro de collection Edition  
  ISSN 0171-8630 ISBN Médium  
  Région Expédition Conférence  
  Notes Approuvé pas de  
  Numéro d'Appel MARBEC @ alain.herve @ collection 2261  
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