Phytoplankton Diversity of Tarangwadi Perennial Lake, Indapur, District Pune

Abstract The Tarangwadi Lake is a significant minor irrigation project situated in the Maharashtra state, specifically within the Indapur taluka of Pune. It serves as a vital freshwater ecosystem, offering a nutrient-rich environment that supports a wide variety of aquatic organisms. This study aims to explore the diversity of phytoplankton present in the Tarangwadi perennial lake over the course of one year, from February 2023 to January 2024. Phytoplankton are essential components of aquatic ecosystems as they form the base of the food web and contribute to primary production. During the study period, a total of 19 phytoplankton species were identified, which were categorized into four major taxonomic groups: Chlorophyceae, Bacillariophyceae, Cyanophyceae, and Euglenophyceae. Among these groups, Chlorophyceae was found to be the most dominant, showcasing a strong presence throughout the year. The results revealed significant seasonal variation in the phytoplankton composition, reflecting the influence of environmental factors such as temperature, nutrient availability, and light intensity. The findings of this research contribute valuable insights into the ecological health of the Tarangwadi Lake and highlight the importance of phytoplankton as indicators of water quality. The diversity and abundance of these organisms also play a crucial role in maintaining the ecological balance of the lake, offering essential data for future management and conservation strategies of freshwater resources in the region. Furthermore, understanding these dynamics can guide the sustainable use of water resources in similar lakes and reservoirs across Maharashtra.