都市内湾域に再生された浅場・干潟の環境モニタリング [in Japanese] ENVIRONMENTAL MONITORING OF THE SHOAL AND TIDAL FLAT REPRODUCED BY CITY CLOSED WATER AREA [in Japanese]
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A tidal flat, sand beach and shoal which were built in the inner part of the Keihin canal. In this area, environmental monitoring is continued from 2002. Benthos and sediments were investigated several times for a year. Flow velocity observation including continuously measurements were carried out in summer in 2006.<BR>Although the sight where was constructed is low-salinity, low-oxygen, and high nutrition, a benthic community is formed here. This community is mainly consists of Polychaetas and Bivalves. Biomass of this community is unstable and is changed seasonally. And dominant species change every year.<BR>In this sight, benthic communities are often reset by the attack of low salinity and low DO water-mass. From the continuation observation result of current, salinity, and DO, it was presumed that bottom water of a surrounding canal advances into a shoal.
- PROCEEDINGS OF CIVIL ENGINEERING IN THE OCEAN
PROCEEDINGS OF CIVIL ENGINEERING IN THE OCEAN (24), 765-770, 2008
Japan Society of Civil Engineers