Waiheru is a coastal village of Ambon city, it has mangroves forest about 11,3925 acres. The existing of mangrove ecosystem provide functions and benefit to the people in its area. But in taking benefit from the ecosystem, people percept that mangrove forest is had by public and they can explore it uncontrolled and regardless the sustainability. Consequently, destruction of mangrove forest cannot be avoided and cause abrasi, decreasing production, productivity and income of fisherman, even the decreasing of biodiversity in the area. The research is aimed to analyze economy value of mangrove forest ecosystem of Waiheru, Ambon city. Collecting data by using observation and interview, also from secondary data. Data analyzing data based on natural resources concept or environment concept according to Suparmoko (2002), and Reuitenbeek (1991). Research result shows (1) Direct benefit of mangrove forest that is taken by people of it area consist of 10 kinds of benefits, they are: fireforest, fish, shell, crabs, shrimp, eel, soa-soa, snake, orchid, and drugs. (2) Total economic value of mangrove forest is 285.543.161 rupiah/year, consist of direct benefit value 16.362.912 rupiah/year, indirect benefit 261.968.211 rupiah/year, benefit of existing 5.508.973 rupiah/year, and choice benefit is 1.703.065 rupiah/year. Keywords: Economic valuation, mangrove forest ecosystem, Waiheru village.
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