Impacts of Oxygen-Deficient Water on the Macrobenthic Fauna of Dokai Bay and on Adjacenet Intertidal Flats, in Kitakyushu, Japan

摘要

Dokai Bay is surrounded by the city of Kitakyushu, Japan. We assessed the chemical conditions of its waters and Sediments, and carried out quantitative samplings of the Macrobenthic fauna of the bay and on adjacent intertidal Flats form 1992 to 1993. Large amounts of organic matter Were deposited on the floor of the bay and intertidal flats Due to eutrophication and resulted in the occurrence of Oxygen-deficient water from the bottom tot he middle Layer during the summer.