Distribution of species of the genus Gobio in the Tisza River drainage area, Slovakia

Title:

Distribution of species of the genus Gobio in the Tisza River drainage area, Slovakia
Distribution, taxonomy and genetic status of the European species of the genus Gobio
International conference Brno, September 9-11, 2003

Creator:

Koščo, Ján, Lusk, Stanislav, Halačka, Karel, Lusková, Věra, and Košuth, Peter

Identifier:

https://cdk.lib.cas.cz/client/handle/uuid:733cdcce-b38a-c24a-39f0-15e5be87bf24
uuid:733cdcce-b38a-c24a-39f0-15e5be87bf24

Subject:

common gudgeon, stone gudgeon, sand gudgeon, whitefin gudgeon, distribution, and negative impacts

Type:

article and TEXT

Description:

The following species of the genus Gobio occur in the Tisza River drainage area in Slovakia: G. Gobio, G. kesslerii, G. albipinnatus and G. uranoscopus. G. Gobio is the commonly distributed species. It occurs in streams of various sizes, attaining the largest numbers in streams populated by the barbel type fish communities. It occurs together with other Gobio spp., whith which it can produce hybrids. The present occurrence of G. Gobio has not changed basically from that in the past. G. albipinnatus occurs primarily in lowland streams, both in large rivers and canalised minor streams and channels. The distribution of this species in the Tisza River drainage area in Slovakia has not, appreciably changed from that in the previous period. According to earlier data, G. kesslerii was relatively abundant in the middle and upper reaches of a number of streams. At present the occurrence of this species has been confirmed in just a few localities so that its range has been markedly restricted. In some cases, however, the species may have been mistaken for G. albipinnatus. According to literary data, G. uranoscopus occurred in the past mainly in the upper reaches of rivers Torysa (the Hornád River drainage area), Topľa, Ondava, Laborec, and Uh (the Bodrog River drainage area). This species shows the most marked decrease in range, compared to that in the past. in recent times its presence has been confirmed only in a few localities. The devastating factors that have affected the distribution of the particular Gobio spp. include water pollution, stream and bed canalisation, decreased river bottom diversity, extraction of gravel materials, and hydro-energetic constructions (steps, weirs and dams). of the above gedgeon species, G. uranoscopus and G. kesslerii are protected by the national legislation in Slovakia. In accordance with the EU legislation (Council Directive 92/43/EEC), special protection regions (NATURA 2000) are being defined for G. uranoscopus, G. albipinnatus, and G. kesslerii.

Language:

English

Rights:

http://creativecommons.org/licenses/by-nc-sa/4.0/

Source:

Folia zoologica | 2005 Volume:54 | Number:Příloha1

Harvested from:

CDK

Metadata only:

false