SEASONAL STATUS OF THE DENSITY OF PHYTOPLANKTON IN RIVER GOMATI AT JAUNPUR (U.P.), INDIA

The river Gomati is popularly known as 'Aadi-Ganga?. Gomati river is an important tributary of river Ganga and perennial river of Awadh plains. The river Gomati originates from Madhoganj Tanda village in Pilibhit district (U.P.), run across the major part of U.P. covering nine districts and 940 km stretch area. It passes through the district of Shahjahanpur, Lakhimpur kheri, Hardoi, Sitapur, Lucknow, Barabanki, Sultanpur, Jaunpur and ultimately merges in Ganga river, near Saidpur Kaithi in Varanasi. Biodiversity of river Gomati is heavily affected by pollution. Phytoplankton are important biological parameters to access the pollution level. Phytoplankton play an important role in biosynthesis of organic material and influence the river ecosystem, aquatic food chain and water characteristic. The biological productivity as ecological indicator to identify the ecological quality of river Gomati. The phytoplankton density fluctuated maximum in between the range of 159-546 Ind/l during summer season and minimum 93-113Ind/l during monsoon season. During study period the total of phytoplankton (35 sp.) were noticed during different seasons. Present study concluded that seasonal differences of phytoplankton density will help in further planning of water management and their use for beneficial purpose like agricultural, drinking for mankind.