Authors
Mariola Krodkiewska
Department of Hydrobiology, University of Silesia, Katowice, Poland
Dariusz Halabowski
Department of Hydrobiology, University of Silesia, Katowice, Poland
© 2018 Agnieszka Sowa, Mariola Krodkiewska, Dariusz Halabowski, published by University of Gdańsk
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.