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Abstract
This paper brings a review of a malacological survey of the Slapy Reservoir (Central Bohemia, Czech Republic). This dam water reservoir was built in 1957 on the Vltava River with area 1392 ha, length 44 km, max. deepness 58 m and altitude 270.6 m. Aquatic molluscs at 22 sites were studied from 2005 to 2006. Altogether, 30 species of aquatic molluscs (21 gastropods, 9 bivalves) which represent nearly 40% of the total Czech aquatic mollusc fauna were found despite the absence of littoral vegetation. Bithynia tentaculata, Radix auricularia, R. cf. ampla, Gyraulus albus, Hippeutis complanatus, Sphaerium corneum, Anodonta anatina and surprisingly also vulnerable Anodonta cygnea belong to most frequent molluscs found during this research. Record of near threatened gastropod Viviparus viviparus fill in long gap among its occurrence in the Vltava River downstream of the Slapy Reservoir (last of the dam water reservoirs on the Vltava River) and in tributaries of the Vltava River in Southern Bohemia (Lužnice, Nežárka). Occurrence of four non-native species (Potamopyrgus antipodarum, Physella acuta, Menetus dilatatus, Ferrissia fragilis) were documented.
Highlights
Přehradní nádrže byly stanovištěm českými malakology dlouho opomíjeným, a to i přes jejich relativně značný počet
This paper brings a review of a malacological survey of the Slapy Reservoir (Central Bohemia, Czech Republic)
30 species of aquatic molluscs (21 gastropods, 9 bivalves) which represent nearly 40% of the total Czech aquatic mollusc fauna were found despite the absence of littoral vegetation
Summary
BERAN L., 2007: Vodní měkkýši přehradní nádrže Slapy (Česká republika) [Aquatic molluscs of the Slapy Reservoir (Czech Republic)]. – Malacologica Bohemoslovaca, 6: 11–16. BERAN L., 2007: Vodní měkkýši přehradní nádrže Slapy (Česká republika) [Aquatic molluscs of the Slapy Reservoir (Czech Republic)]. This paper brings a review of a malacological survey of the Slapy Reservoir (Central Bohemia, Czech Republic). This dam water reservoir was built in 1957 on the Vltava River with area 1392 ha, length 44 km, max. Record of near threatened gastropod Viviparus viviparus fill in long gap among its occurrence in the Vltava River downstream of the Slapy Reservoir (last of the dam water reservoirs on the Vltava River) and in tributaries of the Vltava River in Southern Bohemia (Lužnice, Nežárka). Po průzkumu naší největší vodní nádrže Lipno, který přinesl překvapivé výsledky (DVOŘÁK & BERAN 2004, BERAN 2005a, BERAN & DVOŘÁK 2006) byla pozornost věnována i vodní (přehradní) nádrži Slapy
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