石垣島浦底湾のサンゴ礁池における海水濁度の季節変動と気象

• 高田 宜武

  西海区水産研究所石垣支所

• 阿部 寧

  西海区水産研究所石垣支所

• 長尾 正之

  産業技術総合研究所地質情報研究部門

• 鈴木 淳

  産業技術総合研究所地質情報研究部門

• 小林 都

  西海区水産研究所石垣支所

• 大井 理恵

  西海区水産研究所石垣支所

• 橋本 和正

  西海区水産研究所石垣支所

• 渋野 拓郎

  西海区水産研究所石垣支所

書誌事項

タイトル別名

• Seasonal Variation of Turbidity in a Fringing Reef Water in Urasoko Bay, Ishigaki Island: Re-suspension due to Northerly Winds

抄録

Degradation of coral reef ecosystems are recognized in many areas around the world. Increase of seawater turbidity due to terrigenous sediments is regarded as one of the major cause of the degradation. We investigated levels and temporal variability of the turbidity during a two-year period at Urasoko Bay, a fringing coral reef of Ishigaki Island, Japan. At the near shore station, the median value of the turbidity was 2.26 NTU with the maximum of 92.9 NTU. At the two stations, 150m and 370m offshore, the median values of the turbidity were 0.58 NTU and 0.36 NTU, respectively. Correlation of the turbidity with the precipitation was weak, but wind showed significant correlation with the turbidity. Especially, the wind of the northwestern direction tended to increase the turbidity. These observations suggested that re-suspension of the bottom sediments by the wind driven turbulence and the wind-current with high turbidity and low salinity affected the variability of the turbidity in the Urasoko Bay.

収録刊行物

• 日本サンゴ礁学会誌

  日本サンゴ礁学会誌 2005 (7), 37-48, 2005

  日本サンゴ礁学会

キーワード

• coral reef
• turbidity
• salinity
• wind direction
• precipitation

詳細情報

• CRID: 1390001204484719232
• NII論文ID: 130003670759
• DOI: 10.3755/jcrs.2005.37
• ISSN: 18825710
• ISSN: 13451421
• データソース種別:
  • JaLC
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可