THE DISTRIBUTION PRESENT CONDITION OF SEDIMENT AND BENTHOS IN YATSUSHIRO SEA

Abstract

 The Yatsushiro Sea in central Kyusyu, southwest Japan is representative enclosed sea in Japan. Recently, various environmental degradations are reported in Yatsushiro Sea, as red tide and anoxic water. In this study, we clarified distribution of sediments and benthos in Yatsushiro Sea by using claster analysys. As a result, pH and temperature showed a constant value. Total sulfide and mud component are strong value in Yatsushiro Sea inner part. In the benthos resalt, we suggested benthos is affected by nutrients and total sulfide.