AI Article Synopsis
- The paper discusses environmental issues in Ariake Sea, Japan, such as red tides, hypoxic waters, and declining fishery production linked to factors like reduced tidal flat areas and changes in sediment.
- The loss of tidal flats due to the Isahaya Bay reclamation project is identified as a significant contributor to these changes, leading some to advocate for opening the project’s floodgates for restoration.
- Despite the call for floodgate management, the central government has not acted due to local farmers' opposition, while ongoing legal disputes and alternative environmental restoration methods are being explored.
Article Abstract
This paper reviews the recent environmental deterioration in Ariake Sea, Japan, including an increased frequency of red tides and hypoxic waters and decreased fishery production. Analysis of the mechanisms of environmental deterioration suggests that it is possibly induced by the decrease in tidal flat area, decreases in the tide and tidal current and changes in the sediment environment. The Isahaya Bay reclamation project resulted in the loss of 1550 ha of tidal flats, and is one of the possible reasons for the decreases in the tide and tidal current. Therefore, some fishermen and researchers believe that opening the reclamation project dike's floodgates is an effective environmental restoration countermeasure for Ariake Sea. However, the central government decided not to open the floodgates at present due to strong opposition from local farmers, and some researchers believe that the influences of the Isahaya Bay reclamation project on the environmental changes outside of Isahaya Bay are minor. Several lawsuits regarding these relationships and the opening of the dike's floodgates are currently under dispute. To revive Ariake Sea as a sustainable ecosystem, other countermeasures for environmental restoration are suggested and discussed in this paper.
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| http://dx.doi.org/10.1016/j.marpolbul.2018.08.008 | DOI Listing |
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