20.500.12556/DiRROS-22775 Polychaetes associated with calcareous red algae Corallina officinalis in the Northern Adriatic Sea Polychaetes are important marine invertebrates that contribute to sediment bioturbation, nutrient recycling, and food web dynamics. This study examines the diversity and structure of the polychaete assemblages associated with the red algae Corallina officinalis in areas with different levels of anthropogenic pressures of the Northeastern Adriatic Sea. Sampling was performed in the intertidal zones. Altogether, 54 species from 13 families were found, with Syllidae being the most abundant. Polychaete richness, relative abundance and diversity at sampling locations with and without anthropogenic pressures showed no significant difference. Multivariate analyses revealed significant differences in species composition between sites under anthropogenic pressures and those without, with key species such as Sphaerosyllis pirifera, Syllis rosea, Syllis prolifera, Syllis gerundensis, and Platynereis dumerilii playing significant roles. Syllis rosea was the most abundant in locations without anthropogenic pressures, while S. pirifera was the most abundant in locations under anthropogenic pressures. These results suggest that while polychaete communities are resilient, anthropogenic pressures are causing shifts in species composition. This pattern is consistent with the results of related studies, indicating a broader ecological trend. The shifts observed here should raise concern among conservation ecologists, underscoring the importance of long-term monitoring to understand and mitigate the impacts of human activities on coastal ecosystems. Polychaeta Syllidae Nereididae intertidal area coastal biodiversity hard bottom anthropogenic pressure true false true Angleški jezik Ni določen Neznano 2025-06-24 09:14:34 2025-06-24 09:14:34 2025-10-24 03:52:09 0000-00-00 00:00:00 2025 0 0 Nasl. z nasl. zaslona; Opis vira z dne 24. 6. 2025; Soavtrji: Moira Buršić (doble first author), Ante Žunec, Petra Burić, Neven Iveša, Ines Kovačić, Emina Pustijanac, Ljiljana Iveša, Tanja Vojvoda Zeljko and Borut Mavrič; 1-21 str. iss. 5, [article no.] 302 Vol. 17 May 2025 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 2025-05-01 574 1424-2818 10.3390/d17050302 240328451 https://doi.org/10.3390/d17050302 1 e2b3d9d7-50ca-11f0-8080-001a4af901a5 https://dirros.openscience.si/Dokument.php?lang=slv&id=33069 RAZ_Pitacco_Valentina_2025.pdf RAZ_Pitacco_Valentina_2025.pdf 1 396FE84A1812EB56B9A6F5860CF68760 eae15a23d7af5ad3b33c1b90a4bf854a40939f888afa8cb4b389dcb2d0b32810 1224f4f9-50cb-11f0-8080-001a4af901a5 https://dirros.openscience.si/Dokument.php?lang=slv&id=33070 diversity-17-00302-s001.zip diversity-17-00302-s001.zip Dopolnilne informacije Supporting information 1 D38ABE1879E3D15F1419D97890D63498 f475481d0303f8fc597029078d1f89dbdfeda2c0fd9740b5f2d83eb197fff027 c5f6e092-50d0-11f0-8080-001a4af901a5 https://dirros.openscience.si/Dokument.php?lang=slv&id=33074 Nacionalni inštitut za biologijo 0 0 0