The Spatio-Temporal Distribution of the Freshwater Bivalves Corbicula fluminea and Dreissena polymorpha in the Lower Sector of the Danube River and the Danube Delta

Ana Bianca Pavel (), Catalin Gheablau, Sylvain Kreuter, Irina Catianis, Albert Scrieciu and Alin Enache
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Ana Bianca Pavel: National Institute for Research and Development on Marine Geology and Geo-Ecology—GeoEcoMar, 23–25 Dimitrie Onciul Str., 024053 Bucharest, Romania
Catalin Gheablau: National Institute for Research and Development on Marine Geology and Geo-Ecology—GeoEcoMar, 23–25 Dimitrie Onciul Str., 024053 Bucharest, Romania
Sylvain Kreuter: National Institute for Research and Development on Marine Geology and Geo-Ecology—GeoEcoMar, 23–25 Dimitrie Onciul Str., 024053 Bucharest, Romania
Irina Catianis: National Institute for Research and Development on Marine Geology and Geo-Ecology—GeoEcoMar, 23–25 Dimitrie Onciul Str., 024053 Bucharest, Romania
Albert Scrieciu: National Institute for Research and Development on Marine Geology and Geo-Ecology—GeoEcoMar, 23–25 Dimitrie Onciul Str., 024053 Bucharest, Romania
Alin Enache: Apel Laser, Vintila Mihailescu Str., 060394 Bucharest, Romania

Sustainability, 2023, vol. 15, issue 11, 1-20

Abstract: The objective of this study is to provide an updated account of the distribution history of two invasive molluscs, Corbicula fluminea and Dreissena polymorpha , both in Europe and worldwide. In addition to this, the study also intends to review their ecological requirements to gain a better understanding of their invasive potential and distribution dynamics. Specifically, the study focuses on updating the distribution and ecological characteristics of these freshwater bivalves in the lower sector of the Danube River and the lakes of the Danube Delta. The purpose is to better understand their invasive and distribution dynamics and to develop effective measures to limit their spread in the future. To achieve this, environmental proxies such as sediment particle size and Total Organic Carbon (TOC) concentrations were used to assess their tolerances. However, the results did not show a significant correlation between the densities of these bivalves and the analyzed environmental parameters. Despite this, the species were found in high densities and formed well-developed benthic communities in some stations. The study contributes to the understanding of the invasiveness of these bivalve species and their distribution range dynamics. Nonetheless, further investigation is required to fully comprehend the role of environmental parameters in their distribution. The study covers the period between 2010 and 2020 and focuses on the lower Danube River sector and Danube Delta.

Keywords: invasive species; Asian clam; zebra mussel; Danube River; Danube Delta (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2023
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