Impacts of oxygen-deficient water on the macrobenthic fauna of Dokai Bay and on adjacent intertidal flats, in Kitakyushu, Japan.
Impacts of oxygen-deficient water on the macrobenthic fauna of Dokai Bay and on adjacent intertidal flats, in Kitakyushu, Japan.
复制标题
缺氧水对日本北九州 Dokai 湾和邻近潮间带大型底栖动物的影响。
DOI：
10.1016/s0025-326x(00)00024-2
复制
发表时间：
2000
影响因子：
5.8
通讯作者：
S. Montani
中科院分区：
文献类型：
--
作者：
N. Ueda;H. Tsutsumi;M. Yamada;Kumi Hanamoto;S. Montani
Dokai湾被日本北九州市包围。1992年至1993年，我们评估了该湾沃茨水域和沉积物的化学条件，并对该湾和邻近潮间滩的大型底栖动物进行了定量采样。由于富营养化作用，大量有机质沉积在湾底和潮滩上，导致夏季从底层到中层出现缺氧水体。在潮滩上，沉积物保持含氧状态，全年可供底栖动物接触。夏季大型底栖动物数量明显下降。海湾中缺氧的海水似乎暂时涌上了潮间带，造成了灾难性的环境干扰。在此之后，只有少数多毛类物种幸存下来，密度极低。
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 from 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 to the middle layer during the summer. On the tidal flats, the sediments were kept oxygenated and accessible to benthic animals throughout the year. However, the macrobenthos declined markedly in summer. The oxygen-deficient water of the bay seemed to temporarily upwell onto the intertidal flats causing a catastrophic environmental disturbance. Following this, only a few polychaete species survived, in extremely low densities.