ABSTRACT Macrozoobenthos have various roles in the ecosystem, one of which is as a biological indicator because macrozoobenthos will react to disturbance an aquatic ecosystem. Seagrasses are breeding and sheltering grounds for marine life, one of which is macrozoobenthos. Nirwana Beach and Panjang Island are waters that have seagrass ecosystems in West Sumatra. The purpose of this study was to…