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Expansion of round gobies in a non-navigable river system
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SYSNO ASEP 0480826 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Expansion of round gobies in a non-navigable river system Author(s) Šlapanský, Luděk (UBO-W) SAI, SAI
Janáč, Michal (UBO-W) RID, ORCID, SAI
Roche, Kevin Francis (UBO-W) RID, SAI
Mikl, Libor (UBO-W) SAI, ORCID
Jurajda, Pavel (UBO-W) RID, SAI, ORCIDNumber of authors 5 Source Title Limnologica. - : Elsevier - ISSN 0075-9511
Roč. 67, November (2017), s. 27-36Number of pages 10 s. Language eng - English Country DE - Germany Keywords Impact ; Invasive species ; Neogobius melanostomus ; Pioneer fish ; Population characteristics ; Proterorhinus semilunaris Subject RIV EH - Ecology, Behaviour OECD category Marine biology, freshwater biology, limnology R&D Projects GAP505/11/1768 GA ČR - Czech Science Foundation (CSF) Institutional support UBO-W - RVO:68081766 UT WOS 000417004300004 EID SCOPUS 85032856400 DOI 10.1016/j.limno.2017.09.001 Annotation A number of Ponto-Caspian Gobiid species have greatly increased their geographical ranges over recent decades. Most expansion studies to date, however, have focused on navigable waterways. In this study, we present a summary of six-years (2008–2013) monitoring of round goby Neogobius melanostomus expansion along two connected non-navigable rivers. Contiguous range expansion was observed in both rivers, with dispersal rate ranging from 1.2 to 3.2 km/year. Gobies at newly invaded sites ranged from 20 to 117 mm, with both juveniles and adult fish observed. Though the data did not allow us to see any consistent pattern in the first years after detection, there was some evidence for a shift to a female-biased, juvenile-dominated population over time. While the abundance of non-native tubenose goby Proterorhinus semilunaris appeared to be negatively influenced by round goby establishment, diversity of nearshore native fish showed no evidence of dramatic decline attributable to round goby. Workplace Institute of Vertebrate Biology Contact Hana Slabáková, slabakova@ivb.cz, Tel.: 543 422 524 Year of Publishing 2018
Number of the records: 1