Community Structure of Macrozoobenthos as a Bioindicator of Water Quality in Situ Sipatahunan, West Java, Indonesia

Abstract

This study aimed to determine the water quality of Situ Sipatahunan based on the macrozoobenthic community structure as a bioindicator. The research was conducted from May 19 to June 20, 2025, using a survey method with purposive sampling for data collection. The observational data were analyzed descriptively and comparatively. The results revealed 4 classes and 11 species of macrozoobenthos, with the highest abundance found in Pomacea canaliculata (49 ind/m²; 63%). Water quality status in Situ Sipatahunan, based on macrozoobenthos, was classified as lightly to moderately polluted. This was indicated by the evenness index values ranging from 0.53 to 0.80, suggesting that the population at each station was in an unstable to relatively stable condition, with overall moderate evenness of the macrozoobenthic community. The Family Biotic Index (FBI) ranged between 4.11 and 4.69, also indicating light to moderate pollution levels. Accordingly, Situ Sipatahunan can be categorized as being polluted by certain organic materials.patients. These predictors, however, need further work to validate reliability.