20.500.12556/DiRROS-19447 Scyphomedusae and Ctenophora of the Eastern Adriatic historical overview and new data One of the obstacles to detecting regional trends in jellyfish populations is the lack of a defined baseline. In the Adriatic Sea, the jellyfish fauna (Scyphozoa and Ctenophora) is poorly studied compared to other taxa. Therefore, our goal was to collect and systematize all available data and provide a baseline for future studies. Here we present phenological data and relative abundances of jellyfish based on 2010–2019 scientific surveys and a “citizen science” sighting program along the eastern Adriatic. Inter-annual variability, seasonality and spatial distribution patterns of Scyphomedusae and Ctenophore species were described and compared with existing historical literature. Mass occurrences with a clear seasonal pattern and related to the geographical location were observed for meroplanktonic Scyphomedusae Aurelia solida, Rhizostoma pulmo, and to a lesser extent Chrysaora hysoscella, Cotylorhiza tuberculata and Discomedusa lobata. Holoplanktonic Pelagia noctiluca also formed large aggregations, which were seasonally less predictable and restricted to the central and southern Adriatic. Four species of Ctenophora produced blooms limited to a few areas: Bolinopsis vitrea, Leucothea multicornis, Cestum veneris and the non-native Mnemiopsis leidyi. However, differences between Adriatic subregions have become less pronounced since 2014. Our results suggest that gelatinous organisms are assuming an increasingly important role in the Adriatic ecosystem, which may alter the balance of the food web and lead to harmful and undesirable effects. jellyfish phenology hydrobiology long-term changes Mediterranean Sea fenologija meduz hidrobiologija Jadransko morje dolgoročne spremembe true false true Angleški jezik Slovenski jezik Neznano 2024-07-18 03:50:04 2024-07-19 10:15:02 2024-07-20 04:02:58 0000-00-00 00:00:00 2021 0 0 Nasl. z nasl. zaslona; Opis vira z dne 4. 5. 2021; Str. 1-28 article 186 Vol. 13 2021 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 2021-04-28 574 1424-2818 10.3390/d13050186 61890051 https://www.mdpi.com/1424-2818/13/5/186 1 4d6f625e-4497-11ef-b487-001a4af901a5 https://dirros.openscience.si/Dokument.php?lang=slv&id=26849 RAZ_Pestoric_Branka_2021.pdf RAZ_Pestoric_Branka_2021.pdf 1 8C38DA3259329374938572F62767026A 13e8fd79c711486c2c9110a47d49151a3fc55cb8346ac8445c619b30a1c85833 782ac1c5-4596-11ef-b487-001a4af901a5 https://dirros.openscience.si/Dokument.php?lang=slv&id=26970 Nacionalni inštitut za biologijo 0 0 0