Lyalyuk N. The phytoneuston of Azov Sea litoraly and prospect of its in biomonitoring

The thesis is devoted to study the phytoneuston of Azov Sea litoral. The existence of phytoneuston in Azov Sea litoral on an example of a Taganrog gulf is proved for the first time. The spe- cies structure of phytoneuston is indentified. The fact of long of vegetation and formation of phytoneuston in sea forms is estab- lished for the firstt time. There have been proved, that phyto- neuston is submited basically by nannoplankton (80%) and pico- plankton (10%) fractions, which determine the productional and trophic opportunities of sea water. The seasonal dynamics of species structure, number and bioweigth of algae of neuston are Considered in the present work. For the first time the difinition of pidment indexes (contents and ratio of chlorophylls, carote- noids, phycobilins) is used for the study phytoneuston. The ques- tion on influence basis abiotic factors of neustaly on formation of phytoneuston community are constrideret. Agreeing with the spe- cifications, authorized on Ukraine, an estimation of quality of water is beveloped on a basis of phytoneuston for the first time.