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[Ｆ−５.２.１　Studies on the effects of change of water quality on biodiversity in coral reef areas]

[Contact person]

[Total Budget for FY1997-1999]

　24,724,000 Yen
　(FY 1999; 7,846,000 Yen)

［Abstract］

　The establishment of the method to monitor the healthiness of coral communities was studied by using the polychaete faunal composition of sandy bottom closely associated with the coral communities. Many indibiduals of high species diversity of meiobenthic polychaetes were sorted in rather small amount of sampling sand. The faunal compositions of samples from the same site are very similar each other. However, those are much different among the samples of different sites. Furthermore, there are many species appeared in one or two sites restrictively. These results show the high possivility of usufulness of polychaete species as good bio-indicators for monitoring of environments around coral communities.

［Key Words］

　Coral, Healthiness, Water quality, Monitoring method, Sandy polychaete fauna