@ARTICLE{Czerniejewski_Przemysław_Age_2019, author={Czerniejewski, Przemysław and Zatoń, Kinga and Kasowska, Natalia and Brysiewicz, Adam}, number={No 40}, journal={Journal of Water and Land Development}, howpublished={online}, year={2019}, publisher={Polish Academy of Sciences; Institute of Technology and Life Sciences - National Research Institute}, title={Age structure, condition and length increase of the topmouth gudgeon (Pseudorasbora parva Schlegel 1842) in non-native populations of small rivers of Poland}, URL={http://journals.pan.pl/Content/111675/PDF/Czerniejewski%20Brysiewicz%20et%20al.pdf}, keywords={invasive species, fish, fish age, fish condition, fish growth, Pseudorasbora parva,, small river}, }