碩士 / 國立成功大學 / 海洋科技與事務研究所 / 98 / Beach is an important tourist attraction and contributes to improve the quality of life. Clean beach is a main indicator of the coastal environmental quality. The anthropogenic marine litter not only reduces the aesthetics of the beach, but also results in many undesired environmental consequences such as causing adverse health risk, threatening coastal wildlife, reducing tourism quality, and inflicting fishery loss. Hence, many countries have established monitoring plan and management strategies to prevent marine litter. Beach litter survey is important since the results can be used for beach management and for establishing related regulatory measures. In this study, we performed a yearlong transect survey to investigate the fluctuation of marine litter on four selected beaches in Chijin, Kaohsiung. The amount of marine litter, material compositions, source for litter generation activity, seasonal variation, and top 10 items were analyzed and results were compared with litter survey in other countries to understand the differences.
There are 10,653 items of marine litter that weights 20,650 grams in this survey. The density was 0.88 item per square meter. The top 3 debris items were plastic fragment, Styrofoam fragment, and straw. The material type for most of the items was general plastic (50.5%), while the major contribution was from the recreational activities (42.2%). Seasonal pattern was also found: most of the debris were plastic fragments in spring and summer, while Styrofoam debris were the major items in autumn and winter. These Styrofoam fragments originated from wasted floating device for oyster farming and the number was increased evidently after the typhoon. For the activities that generated marine litter, we found that there are more dumping activities and ocean-based activities litters in this study when compared with those surveys done in other countries. By comparing foreign management experiences and litter characteristics in this study, we concluded with some management strategy for alleviating marine litter problem. It should be noted that the cleanup activities cannot eliminate marine litter. Mitigation measures should be focused on source reduction, waste recycling and management, and pursuing a long-term public education campaign to raise the public awareness of this problem.
| Identifer | oai:union.ndltd.org:TW/098NCKU5274006 |
| Date | January 2010 |
| Creators | Meng-WeiWang, 王孟偉 |
| Contributors | Ta-Kang Liu, 劉大綱 |
| Source Sets | National Digital Library of Theses and Dissertations in Taiwan |
| Language | zh-TW |
| Detected Language | English |
| Type | 學位論文 ; thesis |
| Format | 172 |
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