?????????????????????? ???????????????????? ?????????????????? ??. ?????????? ?????? ?? ???????????????? ?????? ????????????????, ?? ?????????? ?????????????????? ???????????????? ???? ?????????????????????? ???????? ?? ?????????????? 2000 ?? 2001 ????. ?????????????? 93 ???????? ???????????????????? ????????????????????, ???????????????????????????? 98 ???????????????????????????? ??????????????????, ?????????????? ????, ?????????????? ???????????????? ???????????????????????????? ?????? ????????. 30 ?????????? ?????????????? ?????????????????????? ?????? ???????????? ???????? ?? ???????????????? ?????? ????????????????. ?????????????????? ???????????????????? ???????????? ?? ?????????????????????????? ?????????????????????????????? ?? ??????, ?????? ?????????????????????????????? ?????????????????? ???????????????? ?????????????? ??????illariophyta ???????????????????? ??????????????????. ?????????????????????? ???????????????????? ???????????????????? ?????????????? ?????????????? ???????????? ???????? ?? ???????????????? ?????? ???????????????? ???????????????????? ??????????????????????-????????????????????????????????, ??????????????????????????????-????????????????????????, ????????????????????????????????, ???????????????????????? ?? ???????????????????? ????????. ?????????? ?????????????????????? ?????????????????????? ?????????????????????? ??- ?? ??-??????????????????????. ???????????????? ?????????????? ?????????????? ???????????? ??????illariophyt?? ?????????????? ?? ??????????????????????????. ???????????????? ?????????? ???????????????? ???????????????? ???????????????????? ?? ???????????? ???????????????? ????????????. ???????????????? ?????????????? ???????????????? ???????????????? ???????????????? ???????????????????? ?????????????????????????? ?? ??????????????????????. ?????????????? ???????????? ??acillariophyta ?????????????????????? ?????????? ???????????????????????????? ?????????????? ???????????????? ???????????? ???????? ?????????? ???????????????????? ???? ???????????????? ???????????????? ?????? ???????????? ??????????. ???????????????????? ?????????? ?????????????????? ?????????? ?????????????? ?????????????? ???? ????????????, ?????? ?????? ??????????????.

The diatoms of Ihe river Southern Bug, water bodies of its basin and some lakes of Kinburn were investigated during August 2000 and 2001. 93 species of Bacillariophyta, represented by 98 infraspecific taxa, were found. 30 species were shown at first for the river Southern Bug and some water bodies of its basin. The comparison of the received data with literary testifies, that the taxonomic structure of Bacillariophyta is stable enough. The majority of the diatoms of the lower part of Southern Bug and water bodies of its basin make fresh-brackish, brackish-fresh, brackish, mesohalobic and euhalobic species. Among water saprobity indexes prevail a- and p-mesosaprobes. The richest species composition of the diatoms is revealed in phytoepiphyton. Similarity between the diatom lists of species in different biotops is low. The highest degree of floristic similarity have the diatoms of phytoepiphyton and phytobenthos. Species composition of Bacillariophyta of the mouth of the Southern Bug and the nearest water bodies precisely differs from those in the lower part of this river. Distance between stations has the greater value, than type of a water body.