Morphological investigation on Gobio gobio complex in the upper Vistula drainage (S-E Poland)

0354300 - ÚBO 2011 CZ eng A - Abstract
Nowak, M. - Mendel, Jan - Szczerbik, P. - Mikolajczyk, T. - Klaczak, A. - Falowska, B. - Popek, W.
Morphological investigation on Gobio gobio complex in the upper Vistula drainage (S-E Poland).
XII. Česká ichtyologická konference: sborník abstraktů. Vodňany: Jihočeská univerzita, 2010 - (Vykusová, B.; Dvořáková, Z.). s. 39-40
[Česká ichtyologická konference /12./. 19.05.2010-20.05.2010, Vodňany]
R&D Projects: GA ČR GP206/09/P608
Institutional research plan: CEZ:AV0Z60930519
Keywords : common gudgeon * Poland
Subject RIV: GL - Fishing

The common gudgeon Gobio gobio has been considered a widely distributed and highly variable species until the recent years, when it turned out that a number of different evolutionary lineages, clearly recognisable by molecular methods, has been confused under that name. Also in the territory of Poland presence of at least two of them, namely G. gobio (s. stricto) and Gobio sp. 2, has been proven. Current study was conducted to contribute the knowledge about the morphological variability of the “common gudgeon” in 9 rivers within the upper Vistula drainage: Hoczewka, Mleczka, Krzyworzeka, upper San, Sanoczek, Solinka, Tarnawka, Wiar and Wisłoka. A total number of 91 gudgeons were examined. Obtained results extend the known diversity of the “common gudgeon” known from the previous studies. Performed cluster analysis pointed to occurrence of two main clusters, first consisted of the fish from Tarnawka, Mleczka, Hoczewka, Wisłoka, Wiar and upper San Rivers, and second joining the specimens from Solinka, Krzyworzeka and Sanoczek Rivers. PCA showed homogeneity of the population and any remarkable sub-populations can be distinguished.
Permanent Link: http://hdl.handle.net/11104/0193337