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Title: Time-series analysis of abundance indices of deep sea resources in the Strait of Sicily
Authors: Gancitano, Vita
Colloca, Francesco
Enea, Marco
Giusto, G.
Massi, Daniela
Sinacori, G.
Titone, Antonio
Vitale, Sergio
Garofalo, Germana
Knittweis, Leyla
Fiorentino, Fabio
Keywords: Fishes -- Mediterranean Region
Biomass -- Mediterranean Region
Fishes -- Sicily
Biomass -- Sicily
Issue Date: 2016
Publisher: La Commission Internationale pour l'Exploration Scientifique de la Mer Méditerranée
Citation: Gancitano, V., Colloca, F., Enea, M., Giusto, G., Massi, D., Sinacori, G..., Fiorentino, F. (2016). Time-series analysis of abundance indices of deep sea resources in the Strait of Sicily. Rapport Commission International Mer Mediterranee, 41, 465.
Abstract: Time-series of abundance indices of deep sea demersal resources (501-800m) derived by the MEDITS trawl survey in the Strait of Sicily (GSA 16) were analysed by aggregated taxa (bony fish, cartilaginous fish, cephalopods and crustaceans) and species using a polynomial approach. The results showed a significant increasing trend of the cartilaginous fish and cephalopods, in terms of biomass (kg/km) and density (n/Km) indices, whereas temporal pattern in bony fish and crustaceans resulted not significant. Helicolenus dactylopterus, Hoplostetus mediterraneus, Galeus melastomus, Nephrops norvegicus and Aristaeomorpha foliacea showed significant trends in both number and weight, whereas Aristeus antennatus, Etmopterus spinax and Chimera monstrosa only in biomass.
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