Authors
Zbigniew Otremba
Gdynia Maritime University, Department of Physics, Gdynia, Poland
Magdalena Jakubowska
National Marine Fisheries Research Institute, Gdynia, Poland
Barbara Urban-Malinga
National Marine Fisheries Research Institute, Gdynia, Poland
Eugeniusz Andrulewicz
National Marine Fisheries Research Institute, Gdynia, Poland