Ichtiofauna małych dopływów dolnej Wisły. Część I - między Włocławkiem a Świeciem
Journal Title: Roczniki Naukowe Polskiego Związku Wędkarskiego - Year 2013, Vol 26, Issue
Abstract
This paper describes fish and lampreys abundance and species composition in the small tributaries of the lower Vistula River between the towns of Włocławek and Świecie. The description is based on electrofishing investigations carried out in 2012. Additionally, the major environmental factors influencing the studied fish fauna were then assessed. A total of 4341 individuals belonging to 26 species were recorded at 27 sites. Generally, low fish species abundance prevailed in the investigated streams. Among reproductive groups, the most numerous were psammophils (D = 60%), with gudgeon as the most dominant species (44,2%). With the exception of psammophils (gudgeon and stone loach), the occurrence of other rheophilic species was low. Relative richness of riverine fish fauna was only observed in natural-channel streams in forested valleys or in the stream mouths. In the past, most of the studied streams were exposed to pollution and stream channel regulation. Because of the occurrence of barriers, the fish fauna has little regenerated in many of the investigated streams.
Authors and Affiliations
Grzegorz Radtke, Rafał Bernaś, Piotr Dębowski, Jacek Morzuch, Michał Skóra
Keywords
Related Articles
- EP ID EP73358
- DOI 10.12823/sapaa.0860-648X.13005
- Views 136
- Downloads 0
Ichtiofauna systemu rzecznego Zgłowiaczki
The ichthyofauna of the Zgłowiączka River system was investigated in years 2008–2009 using electrofishing (standard CPUE methods) at 26 sampling sites. The occurrence of 22 fish species has been recorded. The dominant re...
Ichtiofauna dorzecza Baudy oraz mniejszych cieków uchodzących do Zalewu Wiślanego
To evaluate fish composition and abundance in several streams flowing into the Vistula Lagoon, the electrofishing method was applied in 37 sampling sites. A total of 23 species have been identified and the most numerous...
Ichtiofauna dorzecza Regi
In 2006–2008, the fish fauna composition was investigated at 70 sites of the Rega River and its tributaries (north-west Poland). The study was carried out by a unified electrofishing method. In the whole river system, a...
Charakterystyka diety oraz wzrostu larw bolenia Aspius aspius (L.) w warunkach stawów karpiowych
The paper presents results of 44 day asp larva rearing from the beginning of endo-exogenous feeding (weight from 2.85 mg (± 0.16) to 3.05 mg (± 0.51)), total length from 8.66 mm (± 0.56) to 9.12 mm (± 0.40) in a carp pon...
Przegęszczona płoć i jej baza pokarmowa zasobna w zooplankton poniżej tamy Zbiornika Jeziorsko
The role of zooplankton in the diet of roach was assessed in the Warta River at the Jeziorsko Reservoir, where roach is considered an eurytopic, dominant species. Fish and zooplankton samples were collected upstream (nat...