Assessment of Water Quality Using Macrobenthos as Bioindicator and Its Application on Abundance-Biomass Comparison (ABC) Curves

Abstract

Activities of aquaculture and industry which is directly adjacent to an aquatic environment will result in increasing organic matter and causes a decreasing quality of water in it. The use of bioindicators of macrobenthos will detect environmental disturbances occur in the aquatic environment. This study aims to determine the level of pollution in aquatic environments using macrobenthos as bioindicators and their application in the abundance and biomass curves. Locations of this study is polyculture ponds and coastal of PT. Kayu Lapis Indonesian located in Mororejo Village, Central Java. Based on the abundance of macrobenthos results shows that in coastal area of PT. Kayu Lapis Indonesia is dominated by Cirratulidae (60%) from Polychaeta while in polyculture ponds is dominated by Potamididae (58%). Based on the abundance and biomass comparison (ABC) curves, the polyculture ponds were categorized as unpolluted area, whereas the coastal area of PT. Kayu Lapis Indonesia was categorized as moderately polluted. Based on the research results of macrobenthic community, the ABC curve is considered effective to demonstrate the environmental disturbance occurs in aquatic environments.