Ecological Study of Edible Fish Species in Sriramsagar Reservoir

Abstract The diversity and distribution of edible fish species in the Sriramsagar Reservoir, Telanagana, India is examined through this study. Three sampling stations vannel khurd (Station-I), magidi(Station-II) and sonpet-pochampad(Station-III) were used to established. The study during January 2023 and November 2024, with the assistance of local fishermen and using gill nets and throwing nets. Sampling was conducted during this Five edible fish species- Anguilla bengalensis, Labeo rohita, Catla catla, Notopterus notopterus and Tilapia mossambica were identified. Seasonal and spatial variations in distribution were exhibited. Several environmental parameters like temperature, electrical conductivity, Ph, turbidity and chemical factors like nitrates, nitrites, sulphates, calcium and magnesium were analysed to assess their influence on fish populations. It is noticed that seasonal changes and environmental factors significantly affected species abundance and distribution. At Station-III, the highest diversity was recorded during summer. The main reservoir storage area catchment exhibited more pronounced seasonal fluctuations due to variations in water quality and agricultural runoff. The comparative analysis of the above three stations revealed that fish population were more stable in deeper reservoir regions, then in catchment areas, where fluctuation of water level and nutrient concentrations were more. Fishing pressure, pollution, and habitat modification were few additional factors which influenced the species composition. The insights into the reservoirs ecological dynamics, contributing to sustainable fisheries management and conservation strategies are provided by this study. The need for continuous monitoring of water quality and fish populations is emphasized to maintain ecological balance and enhance fisheries productivity in the region. This study offers valuable insights into the ecological dynamics of the reservoir, supporting sustainable fisheries management and conservation efforts. The findings highlight the importance of ongoing monitoring of water quality and fish populations to preserve ecological balance and improve fisheries productivity in the region.