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《International Journal of Environmental Science and Development Vol.6 No.2》2015年
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Numerical Analysis for Effective Transplant and Seabed Restoration for Recovery of Pen shell Resources in the Ariake Sea,Japan

T.Tabata  K.Hiramatsu  M.Harada  
【摘要】:Numerical simulation was conducted in order to support the recovery of pen shell Atrina pectinata resources in the Ariake Sea,Japan.Larval transport model was used to predict migration of larvae drifting on tidal currents which were calculated using a two-dimensional depth-averaged model.14 release points were defined as potential new spawning grounds for the pen shell.The number of larvae that migrated from these points to habitable areas for pen shells(depth: 2 h 20 m,grain size median diameter: 62.5 μm) was calculated for each release point.Consequently,larvae released from the northeast area(particularly from Point 13,Noku 210) reached the largest habitable area.In addition,most of the larvae ultimately drifted to Isahaya Bay,suggesting that transplanting pen shell in the northeast area and seabed restoration in Isahaya Bay would be the most effective approach to recovery of pen shell resources.
【作者单位】:Department of Agro-Environmental Sciences,Graduate School of Bioresource and Bioenvironmental Sciences,Kyushu University Department of Agro-Environmental Sciences,Faculty of Agriculture,Kyushu University
【基金】:supported by a project of habitat investigation of principal fish and shellfish in the Ariake Sea in 2011(Kyushu Regional Agricultural Administration Office) the FY2012-2014 JSPS Core-to-Core Program(B.Asia-Africa Science Platforms) JSPS KAKENHI Grant Number 23380144,241526
【分类号】:Q178
【正文快照】:
I.INTRODUCTIONThe Ariake Sea is a typical semi-enclosed inner baylocated near Kyushu Island,Japan(Fig.1;area,1,700 m2;average depth,20 m;volume,34 billion m3).The westernportion of Isahaya Bay is closed off for tidal basinreclamation.Because of its uniqu

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