20.500.12556/DiRROS-31360 At the northern edge of the Adriatic: First records of the invasive Caulerpa cylindracea in the Gulf of Trieste Na sjevernom rubu Jadrana: prvi nalazi invazivne vrste Caulerpa cylindracea u Tršćanskom zaljevu The non-indigenous green alga Caulerpa cylindracea is among the most invasive macroalgae in the Mediterranean Sea and has progressively expanded throughout the Adriatic basin since its first record in 2000. This study reports the first records of C. cylindracea in the Gulf of Trieste, the northernmost part of the Adriatic Sea. The species was first recorded in September 2022 at San Bartolomeo (Italy), where only a few thalli were recorded within a Cymodocea nodosa meadow. In September 2023, two thalli were recorded at Lazaret, representing the first record of the species along the Slovenian coast. Targeted surveys conducted between 2023 and 2025 documented the current spatial extent of the species at both sites and revealed an additional population at the Rex site, between the towns of Koper and Izola. At San Bartolomeo, C. cylindraceaoccupied an estimated 14,497 m² in July 2023 and 12,331 m² in September 2024. At Lazaret, the species occupied an esti-mated 12,114 m² by September 2025, while the newly recorded population at the Rex site, between the towns of Koper and Izola, covered approximately 3,000 m². Because the surveyed areas were not monitored systematically before the initial de-tections, these estimates represent the observed spatial extent of the populations at the time of each survey rather than a quantified rate of spread. These findings confirm the establishment of C. cylindracea in the Gulf of Trieste, extend its known distribution to the northernmost part of the Adriatic Sea, and provide a baseline for future monitoring and assessment of its ecological impacts in this environmentally heterogeneous coastal basin. biological invasion Gulf of Trieste Adriatic Sea benthic habitats Caulerpa cylindracea tujerodna vrsta Jadransko morje bentoški habitati true false true Angleški jezik Hrvaški jezik Neznano 2026-07-29 15:30:28 2026-07-29 15:30:29 2026-07-30 03:49:47 0000-00-00 00:00:00 2026 0 0 Nasl. z nasl. zaslona; Soavtorji: Lovrenc Lipej, Borut Mavrič, Domen Trkov, Neža Leban, Leon Lojze Zamuda, Annalisa Falace, Andrea Gergic, Marco Segarich, Edoardo Batistini, Paola Nichetto, Eva Godini, Saul Ciriaco; Opis vira z dne: 28. 7. 2026; str. 1-8 no. 2 Vol. 67 2026 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 2026-07-01 574.5 1846-0453 10.32582/aa.67.2.3 286204931 https://acta.izor.hr/ojs/index.php/acta/article/view/1566 1 af720e85-8b51-11f1-923b-001a4af901a5 https://dirros.openscience.si/Dokument.php?lang=slv&id=48524 RAZ_Orlando-Bonaca_Martina_2026.pdf RAZ_Orlando-Bonaca_Martina_2026.pdf 1 06A210941C186C41BFF5A331349DD872 5c7b349c8356460fd2829fc490d278a9911fa4244a348669669d18c9ae44e095 c85790b4-8b51-11f1-923b-001a4af901a5 https://dirros.openscience.si/Dokument.php?lang=slv&id=48528 Nacionalni inštitut za biologijo 0 0 0