2007.4-2008.3 Yearbook of NILIM
Research Summary
Coastal and Marine Department
| Reference Number | Y070803 |
| Title | Implementation of Ecological Assessment Method for Adaptive Management on Environment Restoration in Coastal Zone |
| Start-End Date | 2005.4-2008.3 |
| Division | Marine Environment Division |
| Author | Head, Keita@FURUKAWA Senior Researcher, Tomonari@OKADA Researcher, Osamu@Hayakawa |
| Summary | Enhancing macrobenthos diversity is an attractive restoration objective for urban coastal area as canals and harbors. To determine constraints of environmental restoration in such enclosed and entrapped water body, survey based approach was taken at Keihin Canal, Japan as a case study. The constraints are elevation of the site, Chemical Oxygen Demand (COD), and silt-clay fraction for overall macrobenthos abundance while low salinity due effluent from outfall of sweage giving additional constraint for short-necked clam diversity. Furthermore, it is a typical urban brackish water area with a presumably complex flow pattern. Three-dimensional model calculations reveal the density flow acting important role on the flow of the network. These findings are summarized on a Map of Tokyo Bay Environment, Ver.2. |