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Economic valuation and conservation, restoration & management strategies of Saint Martin's coral island, Bangladesh

机译：孟加拉国圣马丁珊瑚岛的经济评估，保护，恢复和管理策略

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摘要

Tropical coral reefs render a large number of ecosystem services, although without sustainable use practices and conservation measures over the last couple of decades many tropical coral reef ecosystems have been damaged because of excessive use of reef resources. This study provides an estimation of economic benefits from both direct and indirect use of Saint Martin's Coral Island resources, one of the ecologically critical areas (ECAs) of Bangladesh. The coral reef and the associated habitats of St. Martin's Island contributes 33.6 million USD/year to the local economy from fishing, tourism, shoreline protection, seaweed culture, and gathering of intertidal shellfish. Tourism and fisheries are the major economic sectors, generating annual direct use values of 19.4 million USD and 13 million USD/year respectively. The indirect use value of shoreline protection is estimated to be about 180,000 USD/year. Economic benefits of around 1 million USD, could also be generated from an entrance fee collected from tourists visiting the island. The net present value (NPV) of benefits from all of the resources of Saint Martin's Island over a 25-year time frame, with a 6.5% discount rate, is about 545 million USD. A coupled socio-ecological-political, restoration and management framework is recommended. The government should come forward with a conservation, restoration and management plan so that the framework could be used for the management and restoration of a degraded coral reef ecosystem.
机译：热带珊瑚礁提供了大量的生态系统服务，尽管在过去的几十年中没有可持续利用的实践和保护措施，但由于过度使用珊瑚礁资源，许多热带珊瑚礁的生态系统遭到了破坏。这项研究提供了直接和间接使用圣马丁珊瑚岛资源（孟加拉国的生态关键地区之一）的经济效益的估计。珊瑚礁和圣马丁岛的相关栖息地每年为当地经济带来3360万美元的收入，其中包括捕鱼，旅游，海岸线保护，海藻养殖以及潮间带贝类的采集。旅游业和渔业是主要的经济部门，每年的直接使用价值分别为1940万美元和1300万美元。海岸线保护的间接使用价值估计约为每年18万美元。参观该岛的游客收取的入场费也可产生约100万美元的经济效益。在25年的时间范围内，圣马丁岛所有资源的收益的净现值（NPV）为6.45亿美元，折现率为6.5％。建议采用社会生态，政治，恢复和管理相结合的框架。政府应提出一项保护，恢复和管理计划，以便将该框架用于管理和恢复退化的珊瑚礁生态系统。

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