1. Department of Hydrobiology, Faculty of Biology, University of Białystok, Białystok, Poland
2. Department of Zoology and Genetics, Faculty of Biology, University of Białystok, Białystok, Poland
3. Department of Hydrobiology, Institute of Biology, University of Szczecin, Szczecin, Poland
4. Escuela Superior Politécnica del Litoral (ESPOL), Centro de Agua y Desarrollo Sustentable, Guayaquil, Ecuador
5. Department of Fisheries Oceanography and Marine Ecology, National Marine Fisheries Research Institute, Gdynia, Poland