Abstract: Mangrove crab is one of important economically valuable aquatic biological resource whose habitat is in estuarine areas (mangroves). Mangrove crab can be cultivated with a silvofishery system, namely cultivation in mangrove forest areas. This study aims to examine the interaction between mangrove vegetation types and bycatch fish species in Mangrove crabs in the silvofishery system. This study used 27 bamboo cages and kept 10 crabs/m2 with an average weight of 200±10 g with a carapace width of ±10 cm.