A najádok (Bivalvia: Unionidae) elterjedésének vizsgálata a Balaton-vízgyűjtő déli oldalán = Examination of the Spread of the Naiads (Bivalvia: Unionidae) in the South Side of the Balaton-Catchment

Eck-Varanka, Bettina and Kováts, Nóra and Benkő-Kiss, Árpád and Horváth, Eszter and Ferincz, Árpád and Paulovits, Gábor (2014) A najádok (Bivalvia: Unionidae) elterjedésének vizsgálata a Balaton-vízgyűjtő déli oldalán = Examination of the Spread of the Naiads (Bivalvia: Unionidae) in the South Side of the Balaton-Catchment. A KAPOSVÁRI RIPPL-RÓNAI MÚZEUM KÖZLEMÉNYEI (3). pp. 81-86. ISSN 2064-1966 (nyomtatott); 2631-0376 (elektronikus)

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Abstract

The Unionid mussel fauna of the complex system of waterflows, situated on the southern part of the Balaton-catchment was studied. Altogether thirty-seven sampling points on nine watercourses were sampled in order to describe the mussel assemblages of these waters and to assess the actual distribution and abundance of Chinese pond mussel (Sinanodonta woodiana) populations. Mussels were found in 46% of the localities, in six out of the nine sampled watercourses. Five native and one non-indigenous Unionid mussel species were identified during the sampling campaign. The non-indigenous Chinese pond mussel was the most frequent species, occurred in 13 sampling sites and its relative abundance was 15.5% in the whole sample. Our study also revealed that fishponds are potential sources of the invasive S. woodiana in the Balaton-catchment.

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