SEA AREA DIVISION OF THE YATSUSHIRO SEA BY BOTTOM SEDIMENT AND WATER QUALITY ENVIRONMENTAL CHARACTERISTICS AND MACROBENTHOS DISTRIBUTION CHARACTERISTICS.

Abstract

 This study examined the environment characteristics of each sea area by past studies of the Yathushiro Sea, correlation of bottom sediment environmental characteristics and macrobenthos distribution, mean currents of undermost layer, time series variation of nitrogen and phosphorus in water quality and bottom sediment and clustering of water quality, bottom sediment and benthos species. Result of examination, the Yatsushiro Sea can be divided into seven sea area divisions.
 This study is to be a valuable reseach in order to examine measures of restoring of polluted sea area.