RESEARCH PAPER
The Orava dam reservoir – an important site of aquatic molluscs in north-western Slovakia
Luboš Beran 1  
 
More details
Hide details
1
Nature Conservation Agency of the Czech Republic, Regional Office Kokořínsko – Máchův kraj Protected Landscape Area Administration, Mělník, Czech Republic
CORRESPONDING AUTHOR
Luboš Beran   

Nature Conservation Agency of the Czech Republic, Regional Office Kokořínsko – Máchův kraj Protected Landscape Area Administration, Česká 149, CZ–276 01, Mělník, Czech Republic
Submission date: 2021-03-03
Final revision date: 2021-04-09
Acceptance date: 2021-04-11
Online publication date: 2021-05-25
Publication date: 2021-06-04
 
Folia Malacol. 2021;29(2):111–116
 
KEYWORDS
ABSTRACT
Mollusc assemblages of the Orava reservoir, the biggest dam reservoir in Slovakia, were studied in 2020. The reservoir, built in 1941–1953, is situated in north-western Slovakia. Sixteen aquatic mollusc species (13 gastropods, 3 bivalves) were recorded. Valvata piscinalis (O. F. Müller), Radix auricularia (Linnaeus) and Gyraulus parvus (Say) were the most frequent; they were recorded in more than ten sites each. Rich mollusc assemblages, composed mainly of gastropods, were found in sites with rich littoral vegetation of macrophytes. The bivalve diversity and abundance were very small, especially compared to the other studied dam reservoirs. The current results were compared with the previous surveys. The occurrence of Radix lagotis (Schrank) is its first reliable record in Slovakia. Viviparus acerosus (Bourguignat), Aplexa hypnorum (Linnaeus), Anodonta cygnea (Linnaeus), non-native Potamopyrgus antipodarum (Gray) and Physa acuta (Draparnaud) were recorded in this area for the first time and their sites are outside their known range in Slovakia.
 
REFERENCES (13)
1.
Beran L. 2007. Vodní měkkýši přehradní nádrže Slapy (Česká republika). Malacologica Bohemoslovaca 6: 11–16. Available online at http://mollusca.sav.sk (accessed 15 March 2007).
 
2.
Beran L. 2020. Aquatic molluscs of the Zemplínská Šírava dam reservoir (East Slovakia). Folia Malacologica 28: 114–120. https://doi.org/doi: 10.12657/folmal.028.006.
 
3.
Beran L., Dvořák L. 2006. New records of aquatic molluscs in the Lipno Reservoir and its surroundings. Silva Gabreta, Vimperk 12: 133–142.
 
4.
Beran L., Horsák M., Hofman S. 2019. First records of Viviparus acerosus Bourguignat, 1862 (Gastropoda: Viviparidae) from the Czech Republic outside its native range. Folia Malacologica 27: 223–229. https://doi.org/10.12657/folma....
 
5.
Dvořák L., Beran L. 2004. Remarkable records of aquatic molluscs in the Lipno Reservoir and its environs. Silva Gabreta 10: 97–106.
 
6.
Horsák M., Čejka T., Juřičková L., Beran L., Horáčková J., Hlaváč J. Č.,  Dvořák L., Hájek O., Divíšek J., Maňas M., Ložek V. 2020. Check-list and distribution maps of the molluscs of the Czech and Slovak Republics. Available online at http://mollusca.sav.sk/malacol..., checklist updated at January 12, 2021, maps updated on January 24, 2021.
 
7.
Jurkiewicz-Karnkowska E. 2004. Malacocoenoses of large lowland dam reservoirs of the Vistula River basin and selected aspects of their function. Folia Malacologica 12: 1–56. https://doi.org/10.12657/folma....
 
8.
Lisický M. J. 1991. Mollusca Slovenska. Veda, Bratislava.
 
9.
Lučivjanská V. 1991. Vyhodnotenie malakofauny z náplavu hornej Oravy. Význam náplavu pre zoológiu a ochranársku prax. Prehľad odborných výsledkov XXVII. TOP – Oravská priehrada: 27–32.
 
10.
Petts G. E., Gurnell A. M. 2005. Dams and geomorphology: research progress and future directions. Geomorphology 71: 27–47. https://doi.org/10.1016/j.geom....
 
11.
Šteffek J. 1991. Rozbor malakofauny z náplavu Oravskej priehrady po jej vypustení. Prehľad odborných výsledkov XXVII. TOP – Oravská priehrada: 17–22.
 
12.
Šteffek J., Nagel K. O. 2004. Vodné mäkkýše regiónu Orava. Zborník Oravského múzea (Dolný Kubín) 21: 185–193.
 
13.
Šteffek J., Vavrová Ľ. 2006. Current ecosozological status of molluscs (Mollusca) of Slovakia in accordance with categories and criterion of IUCN – version 3.1. (2001). In: Kyrychuk G. Y. (ed.). Molluscs: Perspective of Development and Investigation, 27–29th September 2006, Zhytomyr, Ukraine, pp. 266–276.
 
eISSN:2300-7125
ISSN:1506-7629