Authors
B. Draganik
Sea Fisheries Institute, Gdynia, Poland
S. Ivanow
Atlantic Fisheries Research Institute of Marine Fisheries, Oceanography (AtlantNIRO), Kaliningrad
Maciej Tomczak
Sea Fisheries Institute, Gdynia, Poland
B. Maksimov
Fishery Research Laboratory, Lithuania
I. Psuty-Lipska
Sea Fisheries Institute, Gdynia, Poland