WEKO3
アイテム
Imbalance between vertical nitrate flux and nitrate assimilation on a continental shelf: Implications of nitrification
http://hdl.handle.net/2237/25261
http://hdl.handle.net/2237/252613d32f171-3f8e-44c2-a5e1-e21c3c2f5b6f
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
Shiozaki_et_al-2011-Journal_of_Geophysical_Research_Oceans_1978-2012.pdf (927.5 kB)
|
|
| Item type | 学術雑誌論文 / Journal Article(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2016-12-19 | |||||
| タイトル | ||||||
| タイトル | Imbalance between vertical nitrate flux and nitrate assimilation on a continental shelf: Implications of nitrification | |||||
| 言語 | en | |||||
| 著者 |
Shiozaki, Takuhei
× Shiozaki, Takuhei× Furuya, Ken× Kurotori, Hiroyuki× Kodama, Taketoshi× Takeda, Shigenobu× Endoh, Takahiro× Yoshikawa, Yutaka× Ishizaka, Joji× Matsuno, Takeshi |
|||||
| アクセス権 | ||||||
| アクセス権 | open access | |||||
| アクセス権URI | http://purl.org/coar/access_right/c_abf2 | |||||
| 権利 | ||||||
| 言語 | en | |||||
| 権利情報 | © 2011 American Geophysical Union | |||||
| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | [1] The nitrate assimilation rate and diapycnal nitrate flux were simultaneously determined on the continental shelf of the East China Sea (ECS). Further, the archaeal amoA gene was quantified to examine the potential distribution of nitrification activity. Nitrate assimilation rates and distribution of the archaeal amoA gene were also investigated in the Philippine Sea and in the Kuroshio Current. At all the stations, while the surface nitrate was depleted (<0.1 μM), active nitrate assimilation was observed with mean rates of 1400, 270, and 96 μmolN m−2 d−1 in the ECS, the Philippine Sea, and the Kuroshio Current, respectively. Archaeal amoA was observed at shallower light depths, namely at or above 10% light depth, in the ECS than in other regions, suggesting that nitrification occurred within the euphotic zone in the ECS, especially on the shelf. Moreover, a station on the continental shelf of the ECS exhibited a considerable discrepancy between the nitrate assimilation rate (1500 μmolN m−2 d−1) and vertical nitrate flux (98 μmolN m−2 d−1). Here, 6.7 ± 3.1 × 103 and 2.5 ± 0.7 × 105 copies mL−1 of archaeal amoA were detected at 10% and 1% light depths relative to the surface, respectively. Thus nitrification within the euphotic zone would be attributed at least in part to the observed discrepancy between nitrate assimilation and vertical flux. These observations imply that the assumption of a direct relationship between new production, export production, and measured nitrate assimilation is misplaced, particularly regarding the continental shelf of the ECS. | |||||
| 言語 | en | |||||
| 出版者 | ||||||
| 出版者 | Wiley | |||||
| 言語 | en | |||||
| 言語 | ||||||
| 言語 | eng | |||||
| 資源タイプ | ||||||
| 資源タイプresource | http://purl.org/coar/resource_type/c_6501 | |||||
| タイプ | journal article | |||||
| 出版タイプ | ||||||
| 出版タイプ | VoR | |||||
| 出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||
| DOI | ||||||
| 関連タイプ | isVersionOf | |||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | https://doi.org/10.1029/2010JC006934 | |||||
| ISSN | ||||||
| 収録物識別子タイプ | PISSN | |||||
| 収録物識別子 | 0148-0227 | |||||
| 書誌情報 |
en : Journal of Geophysical Research 巻 116, 号 C10, p. C10031-C10031, 発行日 2011-10-26 |
|||||
| 著者版フラグ | ||||||
| 値 | publisher | |||||
| URI | ||||||
| 識別子 | http://doi.org/10.1029/2010JC006934 | |||||
| 識別子タイプ | DOI | |||||
| URI | ||||||
| 識別子 | http://hdl.handle.net/2237/25261 | |||||
| 識別子タイプ | HDL | |||||
