author(s)
Ashok Kumar Verma, Shri Prakash, Brijesh Kumar Mishra

abstract
Alwara lake is a perennial wetland (water logged area), located in Kaushambi district of Uttar Pradesh. This lake has vast range of flora and fauna, diversity of which is influenced by several physico-chemical characteristics. The Alwara lake has a dynamic landscape, created by annual flooding from adjacent Yamuna river. Both phytoplanktons as well as zooplanktons are found abundantly in this water ecosystem but phytoplanktons are major producers that fix the energy and transfer to the land.rnPresent investigation is an attempt to find out the diversity in phytoplankton genera. Phytoplankton diversity is an important criterion for evaluating the suitability of water for irrigation and drinking purposes. Present study will not only help to attract the biologists for further study but also provide a message to frame appropriate strategy for the development of this almost ignored Wetland.