Abstract Macrozoobenthos density is strongly related to the mangrove density. To determine the type and density of macrozoobenthos found in the mangrove ecosystem of the Putri Sembilan Village, a study has been conducted in July to September 2022. There was a survey method applied. Samplings were conducted 3 times with interval 5 days. Macrozoobenthos sampling was conducted using by scoop …