Author(s): Korponai, J., Forró, L., Selmeczy, Géza (G. B.), Vadkerti, E. & Padisák, J.
Title: How does the invasive zooplankton species affect the zooplankton community in small and shallow waters? Appearance and distribution of Sinodiaptomus sarsi (Copepoda, Calanoida)
Year: 2025
Volume: 56
Pages: 111-132.
DOI: https://doi.org/10.17110/StudBot.2025.56.1.111
Abstract: During our study on small and shallow waters in Hungary, a new invasive species of copepod, Sinodiaptomus sarsi (Rylov, 1923), was found in our zooplankton samples collected in 2017. In Hungary, we found it in 17 lakes, with significant biomass in the 4th fishing lake on the outskirts of Püspökladány, Szénaréti-tó in Nyírbátor, the Fegyverneki-Holt-Tisza, and Lake Déli-tó in Gyopárosfürdő. As a result, we confirm that Sinodiaptomus sarsi has successfully established populations in Hungarian waters, yet we found no clear evidence that its presence has significantly altered the overall zooplankton community structure. As a selective filter feeder, it can potentially fulfil the functional role of native calanoid copepods in lentic ecosystems. However, its distribution may be restricted by its thermal requirements, which could confine its presence to specific habitats or seasons. S. sarsi appears to be an invasive and opportunistic member of Hungarian freshwater zooplankton, with its role and distribution likely determined by the interplay of temperature regimes, trophic state, and predator pressure. Monitoring its dispersion will be essential to detect potential shifts in population dynamics, particularly under changing climatic and eutrophication scenarios.Keywords: feeding, zooplankton, traits, Reynolds’s functional group, composition, Sinodiaptomus sarsi
Subject: zoology, biology, ecology
Journal: Studia botanica hungaricaJournal abbreviation: Studia bot. hung.ISSN: 0301-7001Publisher: Hungarian Natural History Museum, BudapestEditor(s): Papp, B., Buczkó, K., B-Béres, V. & Stenger-Kovács, Cs.