Abstract
Rupnarayan River is the heart of Purba Medinipur district of West Bengal as it is the habitat of huge number of aquatic species and also the main resource of drinking, agricultural work, irrigation, cultivation and many more. We have collected the river water sample from Kolaghat, Alinan, Siuri and Deemari villages near Tamluk in Purba Medinipur district. Then assessed the different water quality parameters such as temperature, turbidity, pH, DO, BOD, salinity, alkalinity, hardness etc. We have studied basically for the premonsoon phase (Feb- May) and also assessed the impact of these parameters on the production of shrimp species. We have identified M.rosenbergi, M.brevicornis, M.monoceros, Penaeus vennamei of shrimp species. We also compared the data from 2022 to 2024 (Feb-May) and observed the production as 40%, 60%, 30% in 2022, 2023 and 2024 respectively.