Authors
Marta Pikosz
Department of Hydrobiology, Adam Mickiewicz University in Poznań, Poznań, Poland
Beata Messyasz
Department of Hydrobiology, Adam Mickiewicz University in Poznań, Poznań, Poland
© 2015 Marta Pikosz, Beata Messyasz, published by University of Gdańsk
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.