MATYGIN, Alexander1, ANDREEV, Nadejda2, ZUBCOV, Elena2, ENE, Antoaneta3, TROMBITSKY, Ilya4 and KOVALISHINA, Svetlana5, (1)Department Hydrometeorological Service, Hydrometeorological Center for Black and Azov Seas, 89, Frantsuzsky blvd, Odessa, Ukraine, Odessa, 65062, Ukraine, (2)Institute of Zoology, Chisinau, 2012, Moldova, The Republic of, (3)"Dunarea de Jos" University of Galati, Galati, 800201, Romania, (4)International Association of River Keepers “Eco-Tiras”, 11a, Teatrului str., Chisinau, 2012, Moldova, The Republic of, (5)Ukrainian Scientific Center for the Ecology of Sea, 89, Frantsuzsky blvd, Odessa, Ukraine, Odessa, 65062, Ukraine