Mangrove forest vegetation is spread across several islands in Indonesia, one of which is Rupat Island. Rupat Island is the outermost island in Riau Province which is adjacent to Malaysia and directly faces international waters, namely the Strait of Malacca. Rupat Island has 2 sub-districts, namely Rupat District and North Rupat District. Rupat Island has a very large mangrove forest and has a …