A novel indicator of coastal environment in the Kuroshio Current region: Estimation of intertidal degradation by coenocytic green algae and coutermeasures for its propagation

通过对日本、台湾和菲律宾黑潮流区的社会和生态调查，以及实验室的养殖实验和生物地理研究，考察了作为海岸环境严重退化指标的共生绿藻(CGAs)的有效性。柯勒帕(Caulerpa spp.)在整个研究区域内普遍生长的是Valonia spp.被发现适合于培养实验，而且在自然种群中都很容易检测到。这些观察结果表明，它们作为环境指标具有潜在的实用价值。在台湾绿岛的案例研究中，发现CGAs的植被贫乏与某些社会基础设施的缺乏导致的海岸环境的局部退化相吻合。

Availability of coenocytic green algae (CGAs) as an indicator of coastal environment, which has been degraded significantly, was examined by social and ecological survey along the Kuroshio current region of Japan, Taiwan and Philippines as well as culture experiments and bio-geographical studies in laboratory. Caulerpa spp. were commonly growing throughout the study areas, Valonia spp. were found to be suitable for culture experiments, and both were easily detectable in the natural populations. These observations suggested that they are potentially useful as an environmental indicator. In the case study in Green Island of Taiwan, a poor vegetation of the CGAs was found to coincide with a localized degradation of coastal environment caused by the lack of certain social infrastructures.