Post-Revitalization Water Quality of Situ Bagendit: An Integrated Approach to Aquatic and Plankton Parameters

Situ Bagendit, a key freshwater ecosystem in West Java, underwent revitalization from 2020 to 2022 to restore ecological functions and socio-economic benefits. This study evaluated its post-revitalization water quality by integrating physicochemical parameters and plankton communities. Water samples were collected from five stations during August–October 2023, measuring COD, nutrients, water clarity, and chlorophyll-a, while plankton were identified microscopically and analyzed using the Shannon–Wiener index. Results showed the lake improved from hypereutrophic to eutrophic status, with reduced but still elevated nutrient levels, COD exceeding Class II standards, and Cyanophyceae dominance. Although community structure showed partial recovery, persistent eutrophication risks remain. These findings highlight the partial effectiveness of revitalization and the need for continuous nutrient management to sustain ecological recovery