https://scholars.lib.ntu.edu.tw/handle/123456789/606343
標題: | Using 3D photogrammetry to quantify the subtle differences of coral reefs under the impacts of marine activities | 作者: | Chen G.K CHANG-FENG DAI |
關鍵字: | Coral reef;Kenting national park;Marine activity;Photogrammetry;Structural complexity;Structure from motion;Reefs;3d photogrammetries;Benthic communities;Kenting;National parks;Seawater quality;complexity;coral reef;environmental degradation;national park;photogrammetry;quantitative analysis;three-dimensional modeling;article;motion;rugosity;Taiwan;animal;Anthozoa;ecosystem;Kenting National Park;sea water;Animals;Coral Reefs;Ecosystem;Seawater | 公開日期: | 2021 | 卷: | 173 | 來源出版物: | Marine Pollution Bulletin | 摘要: | Marine activities may cause the degradation of coral reefs. The composition of benthic communities and seawater quality have been commonly used as the proxies to assess the impacts of marine activities. However, these proxies may not be able to detect the subtle differences within homogeneous environment. We used photogrammetry to quantify the subtle differences of structural complexity between heavily and lightly trafficked sites at Wanlitong, southern Taiwan. Our study demonstrated that the impacts of marine activities can be detected within tens of meters through quantifying structural complexity of coral reefs. Vector ruggedness measure (VRM) is a more suitable metric than conventional linear rugosity to detect such impacts. The correlations between structural complexity and coral cover have variances while comparing with previous studies. The results show that using photogrammetry to quantify the structure of coral reefs can provide a novel aspect to evaluate the subtle differences caused by marine activities. ? 2021 Elsevier Ltd |
URI: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-85117381253&doi=10.1016%2fj.marpolbul.2021.113032&partnerID=40&md5=245600b76db2ec6ee291b390fadee1ee https://scholars.lib.ntu.edu.tw/handle/123456789/606343 |
ISSN: | 0025326X | DOI: | 10.1016/j.marpolbul.2021.113032 |
顯示於: | 海洋研究所 |
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