Ábrahám Levente: Biomonitoring a Dráva folyó magyarországi szakasza mentén 2000-2004 - Natura Somogyiensis 7. (Kaposvár, 2005)

Héra, Zoltán: On experiences in monitoring molluscs (Mollusca) in the area of Duna-DrávanNational Park - A Duna-Dráva Nemzeti Park térségében végzett puhatestű (Mollusca) monitoring tapasztalatai

32 NATURA SOMOGYIENSIS Table 4.: Average frequency of terrestrial snail shells in fluvial float debris Species Mean frequency Aegopinella ressmanni (Westerlund, 1883) 7.5 Aegopis verticillus (Férussac, 1822) 1 Bradybaena fruticum (Müller, 1774) 4.1 Carychium minimum Müller, 1774 5.4 Carychium tridentatum (Risso, 1826) 0.01 Cecilioides acicula (Müller, 1774) 0.3 Cepaea nemoralis (Linnaeus, 1758) 1.8 Cepaea vindobonensis (Férussac, 1821) 1.2 Clausula pumila Pfeiffer, 1828 9.5 Cochlicopa lubrica (Müller, 1774) 11.8 Cochlicopa lubricella (Porro, 1838) 0.1 Cochlodina laminata (Montagu, 1803) 0.6 Columella edentula (Draparnaud, 1805) 0.1 Euconulus fulvus (Müller, 1774) 1.3 Helicigona arbustorum (Linnaeus, 1758) 3.2 Helicigona planospira (Lamarck, 1822) 0.4 Helix pomatia Linnaeus, 1758 0.8 Macrogastra ventricosa (Draparnaud, 1801) 0.01 Oxyloma elegáns (Risso, 1826) 0.1 Perforatella bidentata (Gmelin, 1788) 7.1 Perforatella incarnata (Müller, 1774) 4.3 Perforatella rubiginosa (A. Schmidt, 1853) 2.9 Perforatella umbrosa (Pfeiffer, 1828) 1.9 Punctum pygmaeum (Draparnaud, 1801) 0.7 Pupilla muscorum (Linnaeus, 1758) 0.5 Semilimax semilimax (Férussac, 1802) 0.4 Sphyradium doliolum (Bruguiére, 1792) 0.01 Succinea oblonga Draparnaud, 1801 0.8 Succineaputris (Linnaeus, 1758) 2 Trichia hispida (Linnaeus, 1758) 0.2 Truncatellina cylindrica (Férussac, 1807) 0.01 Vallonia pulchella (Müller, 1774) 7.7 Vertigo angustior Jeffreys, 1830 0.01 Vertigo antivertigo (Draparnaud, 1801) 0.1 Vertigo moulinsiana (Dupuy, 1849) 0.01 Vertigo pygmaea (Draparnaud, 1801) 0.5 Vitrea crystallina (Müller, 1774) 14.6 Zonitoides nitidus (Müller, 1774) 6.8