Studies on Physical and Chemical Nature of 'Subtropical Deep Sea Water' and it's Effect on Marine Environment

“亚热带深层海水”理化性质及其对海洋环境的影响研究

• 批准号: 11793002
• 负责人: OOMORI Tamotsu
• 金额: $ 5.82万
• 依托单位: University of the Ryukyus
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for University and Society Collaboration
• 财政年份: 1999
• 资助国家: 日本
• 起止时间: 1999 至 2001
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-11793002/
• 关键词: deep sea water; nutrients; material cycle; CO2; Kuroshio; North pacific Intermediate seawater; enviromncotal monitoring; 沖縄; 富栄養; 清浄性; 生物効果; 有機スズ; PCB; 炭酸系化学; 亜熱帯; 二酸化炭素; ウニ; 発生阻害; 東シナ海; 生理作用; 有害物質; モニタリング

The results are summarized as follows ;1. In order to verify the physico-chemical nature of Subtropical 'Deep sea Water' which is pumped up by Okinawa Prefecture Institution, Ocean Expedition of Nagasaki-maru was successfully carried out from Sep.23 to Oct.2, 2001.2. Subtropical 'Deep Sea Water' is collected from intermediated depth of ca.600m off from Kume-jima Island. It is clear that salinity of its depth water is minimal in the Pacific Ocean, which is formed by the contribution of North Pacific Intermediated Water, however deny in East China Sea. Exchange of Deep sea water between East China Sea and Pacific Ocean is limited only available through Kerama Gap.3. Vertical distribution of nutrients such as silica, NO3-N and PO4-P also show different between the two sides. Estimation of contamination of anthropogenic carbon in the water column shows that it has arrived at up to 1000m depth.4. Hazardous species such as organic-tin and PCBs are detected even in deep sea water, however they are very less compared to coastal sea waters.5. Effect of deep sea water on physiology of sea urchin and inorganic crystallization of CaCO3 were also studied.

研究结果如下：1.为了验证冲绳县研究所抽取的亚热带“深海水”的物理化学性质，于2001年9月23日至10月2日成功地进行了长崎丸海洋考察。亚热带“深海水”是从距久米岛约600米的中间深度采集的。其深层水盐度在太平洋中是最低的，是由北太平洋中介水的贡献形成的，而在东海则不然。东海和太平洋之间的深海水交换是有限的，只能通过Kerama间隙进行。SiO2、NO3-N、PO 4-P等营养盐的垂直分布也表现出两岸差异。对水柱中人为碳污染的估计表明，它已达到1000米的深度。即使在深海水中也检测到有机锡和多氯联苯等有害物质，但与沿海海水相比，它们的含量很少。研究了深海海水对海胆生理和碳酸钙无机结晶的影响。

项目成果

Oomori T. et al.: "Carbonate Chemistry and the Human Impact in Marine Environments around the Ryukyu Islands"The Jour. of Shanghai Fisheries Univ.. 10. 35-43 (2001)

Oomori T. 等人：“碳酸盐化学和人类对琉球群岛周围海洋环境的影响”The Jour。

S.Yamamoto and Yokoyama Y.: "Monitoring on sedimentation hehavior of terrgeneous red soils through mooring and wether stations in coral-reef coastal area.the Okinawa"Proc.4th Int,Sci.Svmp."Role of Ocean Scciences for Sustainable Developments",IOC/WESTPAC.

S.Yamamoto 和 Yokoyama Y.：“通过珊瑚礁沿海地区的系泊站和气象站监测陆地红土的沉积行为。冲绳”Proc.4th Int，Sci.Svmp。“海洋科学对可持续发展的作用”

Sheikh M.A., Oomori T.et al.: "Polychlorinated Biphenyls(PCBs) in a Sub-tropical Marine Environment. A Case Study in sea water collected around Ryukyu Islands, Japan"Bull.Fac.Sci Univ.Ryukyus,. 74. 65-72 (2002)

Sheikh M.A.、Oomori T.等人：“亚热带海洋环境中的多氯联苯 (PCB)。日本琉球群岛周围收集的海水案例研究”Bull.Fac.Sci Univ.Ryukyus,。

Fujimura H., Oomori T.et al.: "Effect of coral bleaching on the organic and inorganic carbon productions"Garaxea : J.Coral Reer Soc. Jpn. 3. 41-50 (2001)

Fujimura H.、Oomori T.等人：“珊瑚白化对有机和无机碳生产的影响”Garaxea：J.Coral Reer Soc。

Lee Su-Yong et al.: "First report of linnaeite (Co_3S_4) and millerite (NiS) from active submarine hydrothermal deposits : Rainbow hydrothermal field, Mid-Atlantic Ridge at 36° 14'N"Neues Jahrbuch fur Mineralogie, Monatshefte. (in press).

Lee Su-Yong 等人：“来自活跃海底热液矿床的菱铁矿 (Co_3S_4) 和针铁矿 (NiS) 的首次报告：彩虹热液田，北纬 36° 14 处大西洋中脊”《Neues Jahrbuch Fur Mineralogie》，Monatshefte。按）。