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琉球列島近海のカドミウムとリン酸塩の関係
https://fra.repo.nii.ac.jp/records/2008129
https://fra.repo.nii.ac.jp/records/200812996987c31-9602-4df6-97aa-9eeec270139e
| Item type | 紀要論文 / Departmental Bulletin Paper(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2024-06-20 | |||||
| タイトル | ||||||
| タイトル | 琉球列島近海のカドミウムとリン酸塩の関係 | |||||
| 言語 | ja | |||||
| タイトル | ||||||
| タイトル | Relationship between Cd and PO4 off the Ryukyu Islands. | |||||
| 言語 | en | |||||
| 言語 | ||||||
| 言語 | jpn | |||||
| 資源タイプ | ||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
| 資源タイプ | departmental bulletin paper | |||||
| アクセス権 | ||||||
| アクセス権 | metadata only access | |||||
| アクセス権URI | http://purl.org/coar/access_right/c_14cb | |||||
| 著者 |
阿部, 和雄
× 阿部, 和雄 |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | Relationship between Cd and PO₄ off the Ryukyu Islands was investigated. Water samples were collected using acid-cleaned Niskin bottles attached to CTD-RMS system, aboard R/V "Yoko-Maru" of Seikai National Fisheries Research Institute in May 1998. Preformed Cd and PO₄ were estimated from the equations as follows : Cd(P) = Cd(m) - AOU·a/138, PO₄ (P) = PO₄ (m) - AOU/138 where Cd(P) and PO₄ (P) are preformed Cd and PO₄, Cd(m) and PO₄ (m) are measured (observed) ones, respectively. AOU represents apparent oxygen utilization and "a" denotes the ratio of the regenerated Cd to PO₄ (nM/μM). Cd vs. AOU plot indicated the slope of 0.00105 (nM/μM) and 0.145 (nM/μM) as "a" above 400 m. Preformed Cd and PO4 were nearly zero in surface layer and increased with depth below 400 m, and reached approximately 0.7 nM and 1.2μM, respectively in deep water (below 1,000 m). The relationship between Cd and PO₄ showed a clear deviation. Above 400 m, the slope of the regression line was 0.131 (nMcd/μMphosphate), and this value was much the same as the regeneration ratio of Cd to PO₄, which suggested that regeneration process might be a main factor that regulated the correlation of Cd and PO₄ in this layer. Below 400 m, the Cd/PO₄ ratios increased gradually with depth to the almost constant value of 0.36 (nM/μM) below 1,000 m, which is considered to be attributable to the apparent conservative mixing between water masses with originally different Cd/PO₄ ratio (different preformed values), in deep and shallow layer. | |||||
| 言語 | en | |||||
| bibliographic_information |
ja : 西海区水産研究所研究報告 en : Bulletin of the Seikai National Fisheries Research Institute 巻 78, p. 49-56, ページ数 8, 発行日 2000-06 |
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| 出版者 | ||||||
| 出版者 | 西海区水産研究所 | |||||
| 言語 | ja | |||||
| 出版者 | ||||||
| 出版者 | Seikai National Fisheries Research Institute | |||||
| 言語 | en | |||||
| item_10002_source_id_9 | ||||||
| 収録物識別子タイプ | PISSN | |||||
| 収録物識別子 | 0582-415X | |||||
| item_10002_source_id_11 | ||||||
| 収録物識別子タイプ | NCID | |||||
| 収録物識別子 | AN00393385 | |||||
| 情報源 | ||||||
| 識別子タイプ | Local | |||||
| 関連識別子 | snf_k_78_49 | |||||
| 関連サイト | ||||||
| 識別子タイプ | URI | |||||
| 関連識別子 | https://agriknowledge.affrc.go.jp/RN/2010612037 | |||||
| 言語 | ja | |||||
| 関連名称 | 日本農学文献記事索引(agriknowledge) | |||||
