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dc.contributor.authorLIGAS A.en_GB
dc.contributor.authorOSIO GIACOMO CHATOen_GB
dc.contributor.authorSARTOR P.en_GB
dc.contributor.authorSBRANA M.en_GB
dc.contributor.authorDE RANIERI S.en_GB
dc.date.accessioned2013-07-26T00:02:27Z-
dc.date.available2013-07-25en_GB
dc.date.available2013-07-26T00:02:27Z-
dc.date.created2013-06-26en_GB
dc.date.issued2013en_GB
dc.date.submitted2011-11-17en_GB
dc.identifier.citationSCIENTIA MARINA vol. 77 no. 1 p. 119-127en_GB
dc.identifier.issn0214-8358en_GB
dc.identifier.urihttp://scientiamarina.revistas.csic.es/index.php/scientiamarina/article/view/1430/1542en_GB
dc.identifier.urihttp://publications.jrc.ec.europa.eu/repository/handle/JRC67683-
dc.description.abstractThe time series of elasmobranch catch rates off the Tuscany coasts (NW Mediterranean) were investigated by means of min/max auto-correlation factor analysis in order to estimate variations in population abundance and evaluate the influence of environmental and anthropogenic factors. The analyses highlighted a general decreasing trend in the catch rates of sharks and skates from 1961 to the mid-1990s, mainly influenced by the increase in fishing effort. Since the 1990s, the EU Common Fishery Policy for the Mediterranean has promoted the reduction of fishing fleets through incentives to vessel demolition. The Porto S. Stefano trawl fleet has decreased by about 50%, leading to a decrease in fishing effort which seemed to be the most relevant factor affecting the increasing trend shown by the catch rates of Galeus melastomus, Scyliorhinus canicula and skates from 1991 to 2009. The elasmobranch assemblage did not undergo major shifts but the weighted frequency of occurrence shows that elasmobranchs were more frequent in the past. Particular caution should be paid in interpreting the recent rebound of some species as an early sign of recovery: trawl survey data and landing data show that over the last 50 years elasmobranch fauna have undergone a drastic decline and that recent rebounds are still far from a recovery to historical levels.en_GB
dc.description.sponsorshipJRC.G.4-Maritime affairsen_GB
dc.format.mediumPrinteden_GB
dc.languageENGen_GB
dc.publisherINST CIENCIAS MAR BARCELONAen_GB
dc.relation.ispartofseriesJRC67683en_GB
dc.titleLong-term trajectory of some elasmobranch species off the Tuscany coasts (NW Mediterranean) from 50 years of catch dataen_GB
dc.typeArticles in periodicals and booksen_GB
dc.identifier.doi10.3989/scimar.03654.21Cen_GB
JRC Directorate:Space, Security and Migration

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