Ichtiofauna Dzikiej Orlicy (dorzecze Łaby, Polska) – dziesięć lat później
Journal Title: Roczniki Naukowe Polskiego Związku Wędkarskiego - Year 2015, Vol 28, Issue
Abstract
The work is a continuation of a monitoring study, started in 2003–2005, of the ichthyofauna of the Dzika Orlica River, which along the first 33 km of its course forms a natural border between Poland and the Czech Republic. In that section, the river flows through areas protected under the European Natura 2000 network. During the research carried out in 2013 and 2014 electrofishing was performed in 14 sites. Among the 10 species recorded in the river, brook lamprey, brown trout and bullhead dominated in abundance, biomass and frequency of occurrence. Because the river flows through protected areas, the ichthyofauna is mainly affected by natural factors and minimally affected by fly fishing. As a result, fish populations there consist of only low numbers of brook trout and rainbow trout. In comparison with the previous period of study there were no significant differences in abundance of native species and the only new ones are two American species of trout. In the Dzika Orlica, large numbers of two partly protected fish species in Poland (brook lamprey, bullhead) were recorded during the latest monitoring study.
Authors and Affiliations
Andrzej Witkowski, Marcin Popiołek, Jan Kotusz, Krzysztof Wawer, Jacek Stefaniak
Keywords
Related Articles
- EP ID EP72243
- DOI 10.12823/sapaa.0860-648X.15001
- Views 152
- Downloads 0
Ichtiofauna małych dopływów dolnej Wisły. Część II – między Świeciem a ujściem / Fish fauna of small tributaries of the lower Vistula River Part II – between the town of Świecie and Vistula mouth
This paper is a continuation of the first part of study on determination of fish and lampreys abundance in small tributaries of the lower Vistula River. In this second part, we describe the fauna of affluents of the main...
Ichtiofauna małych cieków polskiego wybrzeża Bałtyku
The fish fauna of small coastal streams of the Baltic Sea was investigated in 2002–2008 by electrofishing. At 41 sampling sites a total of 8953 individuals representing 24 fish and lamprey species were collected. The mos...
Ichtiofauna polskiej części dorzecza Czarnej Orawy
As a result of fish sampling at 32 sites established within the Polish part of the Czarna Orawa River catchment (the Danube drainage, Black Sea basin) that was carried out in 2010–2011 two specimens of the Danubian brook...
Występowanie wędrownych i reofilnych gatunków ryb i minogów w rzekach północnej Polski w świetle historycznych materiałów do początku XX wieku
The paper contains an analysis of historical sources of the distribution of migratory and rheophilic fish and lamprey species in rivers of northern Poland. In the past, most of these rivers and streams had rich fish faun...
Ichtiofauna systemu Rzeki Iny
The fish fauna of the Ina River system was investigated in 2006–2007. At 54 sampling sites a total of 4912 individuals representing 33 species were collected by electrofishing. The studied tributaries were human-impacted...