“Modern Problems of Aquatic Ecology”, 4th International Scientific Conference to commemorate Professor G.G. Winberg, 11–15 October 2010, St. Petersburg, RussiaN.A. Berezina, S.M. Golubkov, B.O.L. Demars and A. RazinkovasKnowl. Managt. Aquatic Ecosyst., 402 (2011) 01DOI: https://doi.org/10.1051/kmae/2011084