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dc.contributor.authorVila, Magda-
dc.contributor.authorGiacobbe, Maria Grazia-
dc.contributor.authorMasó, Mercedes-
dc.contributor.authorGangemi, Ester-
dc.contributor.authorPenna, Antonella-
dc.contributor.authorSampedro, Nagore-
dc.contributor.authorAzzaro, Filippo-
dc.contributor.authorCamp, Jordi-
dc.contributor.authorGalluzzi, Luca-
dc.identifier.citationHarmful Algae 4(4): 673-695 (2005)-
dc.description23 pages, 8 figures, 3 tables-
dc.description.abstractAlexandrium minutum is a toxic dinoflagellate widespread along the Mediterranean coasts. This species is frequently detected year-round at low concentrations within the Mediterranean basin. However, it only proliferates recurrently in some localities. Two affected areas are the Catalan and Sicilian coasts. In order to identify the factors determining the A. minutum blooms in the Mediterranean Sea, we compare the bloom conditions in two harbours: Arenys de Mar (Catalan coast, Spain) and Syracuse (Sicily, Italy), during 2002–2003. Arenys de Mar harbour is a fishing and leisure harbour and receives an input of freshwater rich in nutrients. Likewise, the Syracuse harbour – located on the Ionian coast of Sicily – is subject to freshwater inputs. Some points of this site are used for productive activities such as shellfish farming. A. minutum from the two areas studied were morphologically and genetically identical. In both sites, recurrent blooms take place from winter to spring. Surface water temperatures and salinities during A. minutum bloom events were 12–14.5 °C and 32–38, and 16–24 °C and 32–37.7 for Arenys and Syracuse, respectively. During the blooms, the spatial distribution of A. minutum in the two harbours, the physicochemical characteristics and the phytoplankton community were studied. Similarities in composition of the phytoplankton community were evidenced, with a clear dominance of dinoflagellates over the other taxa. In Arenys, the second dominant species was Prorocentrum micans followed by Scrippsiella spp. and Dinophysis sacculus. The same species were found in Syracuse although P. triestinum, and alternatively Lingulodinium polyedrum, reached cell densities much higher than the other dinoflagellates giving marked water discolourations-
dc.description.sponsorshipFinancial support was provided by the EU project STRATEGY (EVK3-CT-2001-00046), by the Agència Catalana de l’Aigua (Department de Medi Ambient, Generalitat de Catalunya) and CSIC through the contract “Plà de vigilància de fitoplàncton nociu i tòxic a la Costa Catalana” and by the Italian Ministery MiPAF, Department of Fisheries and Aquaculture (Projects 5C8 and 6C18)-
dc.format.extent8554193 bytes-
dc.subjectAlexandrium minutum-
dc.subjectMediterranean Sea-
dc.subjectPhytoplankton assemblages-
dc.subjectToxic dinoflagellates-
dc.titleA comparative study on recurrent blooms of Alexandrium minutum in two Mediterranean coastal areas-
dc.description.peerreviewedPeer revieweden_US
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