Transformation of the current state of the ecosystem of the Western part of the sea of Azov for the period 1996-2004 09.06.202007.02.2005 by Светлана Малахатко O. A. Petrenko, T. M. Avdeeva, N. M. Litvinenko, N. E. Zaremba, S. S. Zhugailo Full text in PDF(RUS)