Accession Number : ADP006836

Title :   Relationship Between Sediment Pollution and Macrobenthic Communities in Hiroshima Bay, Japan,

Corporate Author : JAPAN SEDIMENTS MANAGEMENT ASSOCIATION TOKYO

Personal Author(s) : Yoshida, K.

Report Date : APR 1992

Pagination or Media Count : 22

Abstract : Distribution of sediment, macrobenthos, and the anoxic water mass in Hiroshima Bay was investigated. The accumulation of organic matter in the sediment was considerable in the semi-closed bays, such as Kure and Edajima, and in the mouth of the Ota River. In Kure Bay, particularly, the benthic communities were of very poor condition or had disappeared, apparently due to the anoxic water mass. It is thought that the occurrence of the anoxic water mass in Kure Bay was mainly caused by the oxygen demand due to decomposition of the organic matter in the sediment, which can be determined from the distribution of the temperature, salinity, and dissolved oxygen and from the subtidal current.

Descriptors :   *SEDIMENTS, ACCUMULATION, BAYS, DECOMPOSITION, DISTRIBUTION, MASS, OXYGEN, RIVERS, SALINITY, TEMPERATURE, WATER, ORGANIC MATERIALS, WATER POLLUTION.

Subject Categories : Water Pollution and Control
      Solid Wastes Pollution and Control

Distribution Statement : APPROVED FOR PUBLIC RELEASE