160 KB23 KB199420252014Mavrič, BorutOrlando-Bonaca, Martinaštevilka:2letnik:24str. 109-114ISSN:1408-533XCOBISSID:3304783URN:URN:NBN:SI:doc-WAXUZLDPenSocietá storica del LitoraleZgodovinsko društvo za južno PrimorskoAnnales. Series historia naturalisGulf of Triestemakroalgemorjeneokrevanje populacijseaSredozemsko morjeTržaški zalivRecurrence of Sargassum vulgare C. Agardh in Slovenian coastal waters (Adriatic Sea)|Perennial species from the genus Sargassum are considered to be indicators of high environmental quality and are therefore used in the assessment of the Ecological Status of Mediterranean coastal waters according to the European Water Framework Directive (WFD, 2000/60/EC). Over the past three decades a signifi cant decline in Sargassum populations has been reported in the Gulf of Trieste, as well as in other Adriatic and Mediterranean areas. In Slovenian coastal waters the presence of Sargassum spp. had not been confi rmed since 1980, after a severe decline due to overgrazing by the sea urchin Paracentrotus lividus. Recently, however, some thalli of S. vulgare were found in Piran Bay. The recurrence of this species is discussed in the paper, as well as the possible causes that led to the non-recovery in its populations in last decades in Slovenian coastal watersTEXTznanstveno časopisjejournalsSlovenian National E-content AggregatorNational and University Library of SloveniaZgodovinsko društvo za južno Primorsko