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Recent distribution of Sphaerium nucleus (Studer, 1820) (Bivalvia: Sphaeriidae) in the Czech Republic

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Author(s): Tereza Kořínková | Luboš Beran | Michal Horsák

Journal: Malacologica Bohemoslovaca
ISSN 1336-6939

Volume: 7;
Start page: 26;
Date: 2008;
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Keywords: Sphaerium nucleus | distribution | molluscan assemblages | habitats | threats

ABSTRACT
Recent data about the distribution of Sphaerium nucleus in the Czech Republic are summarized and used in an attempt to evaluate its conservation status. During the last ten years, this species was found at 40 sites, mostly shallow small water bodies situated in lowland river alluviums. These types of habitats are generally endangered due to the huge human impact and exploration of these areas. The revision of voucher specimens of Sphaerium corneum s.lat. deposited in museum collections yielded a further 22 old records of S. nucleus.
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