其他摘要：In the years 2010 – 2011, samples of driftwood were taken at 23 sites along the Hron River from the spring to the mouth. Molluscan allocoenoses were composed of 135 species (95 terrestrial and 40 aquatic ones). Among them, several interesting species from the faunistic and ecosozological point of view were recorded. They were divided into 5 groups: 1. Species that have not been recorded in the Hron River watershed so far – Alzoniella slovenica (Ložek et Brtek, 1964); 2. Species recorded in driftwood on the edge of their range – Macrogastra tumida (Rossmässler, 1836), Monacha cartusiana (O. F. Müller, 1774), Macrogastra latestriata (A. Schmidt, 1857) and Vestia elata (Rossmässler, 1836); 3. Aquatic species penetrating to the lower Hron River from the Danube – Bithynia tentaculata (Linnaeus, 1758), Corbicula fluminea (O. F. Müller, 1774), Esperiana esperi (A. Férussac, 1823), Lithoglyphus naticoides (C. Pfeiffer, 1828), Planorbarius corneus (Linnaeus, 1758) and Viviparus acerosus (Bourguignat, 1862); 4. Non–native species – Lucilla scintilla (R. T. Lowe, 1852), Lucilla singleyana (Pilsbry, 1890), Physella acuta (Draparnaud, 1805), Gyraulus parvus (Say, 1817) / Gyraulus laevis (Alder, 1838) and Helisoma duryi (Wetherby, 1879); 5. Species of the Community interest – Vertigo angustior Jeffreys, 1830 – Annex II of the Habitats directive, Unio crassus Philipsson, 1788 – Annex II and IV, Helix pomatia Linnaeus, 1758 – Annex V and endangered species – Hauffenia sp. and Pupilla alpicola (Charpentier, 1837).
