Abstract Mangrove Crab (Scylla serrata) is a fishery resource that has the potential to be developed in mangrove areas and has high economic value. Pasir Limau Kapas District is one of the sub-districts in Rokan Hilir Regency which has extensive mangrove forests. Meanwhile, the mangrove ecosystem is now being converted by many people, such as logging mangrove forests to expand settlements, fis…