Ichtiofauna systemu rzeki Brdy
Journal Title: Roczniki Naukowe Polskiego Związku Wędkarskiego - Year 2015, Vol 28, Issue
Abstract
Research on species composition, distribution, and abundance of fish fauna in the Brda River system (left-bank tributary of the lower Vistula River) was carried out in 2011–2014. A total of 15863 individuals representing 33 species of fish and lampreys were caught at 113 sites. Gudgeon, stickleback, pike and perch were the most widespread species, while perch, gudgeon, roach and brown trout were dominants in abundance. Despite good water quality, high woodiness and little urbanized land in the catchment, most rheophilic species had low biocenotic characteristics. In comparison to historical data, the status of riverine species is weak because of hydrotechnical barriers and regulation of streambeds. A 50 km long lotic stretch of the lower Brda River has been destroyed by the construction of a cascade of reservoirs (i.e. Koronowo, Tryszczyn and Smukała). Because of the barriers, upstream access for migratory species is possible only in the area of Bydgoszcz. The impact of lakes on the fish fauna was well visible in the upper part of the system. Racer goby was observed in the lower Brda. Another invasive species, Amur sleeper, was recorded at two sites.
Authors and Affiliations
Grzegorz Radtke, Rafał Bernaś, Piotr Dębowski, Jacek Morzuch, Michał Skóra
Keywords
Related Articles
- EP ID EP72345
- DOI 10.12823/sapaa.0860-648X.15003
- Views 127
- Downloads 0
Ichtiofauna dorzecza Krzny
The Krzna River belongs to the biggest tributaries of the Bug River. The present study describes and analyses the sampled fish fauna of the main channel and its ten tributaries. Fish were sampled in 43 sites (August 2010...
Rezultaty chowu narybku pstrąga potokowego (Salmo trutta m. fario L.) zaszczepionego przeciw furunkulozie w kontekście jego pochodzenia, ryby hodowlane (F3) vs. ryby dzikie
Three groups of brown trout were reared from fry till the fingerling stage. Group F and K originated from farmed brood stock, group P from wild fish. Group F was immersion-inoculated against furunculosis. The survival, g...
Zmiany w ichtiofaunie dorzecza Słupi w okresie od 1998 do 2009 roku
The fish fauna of the Słupia River system was monitored in the same 65 sites in three sampling periods: 1998–1999, 2003–2004, and 2008–2009. The number of identified fish species was 25 in the first and second and 28 in...
Dieta stadium parr troci wędrownej (Salmo trutta trutta) na tle warunków pokarmowych trzech niewielkich leśnych cieków
The aim of this study was to determine the diet of sea trout fry parr stage for the qualitative and quantitative composition of benthos in three small forest streams. We found that the streams were abundant in food, whic...
Ichtiofauna Dzikiej Orlicy (dorzecze Łaby, Polska) – dziesięć lat później
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 Republi...