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  1. F300 宇宙地球環境研究所
  2. F300a 雑誌掲載論文
  3. 学術雑誌

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/2237/25261
3d32f171-3f8e-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 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

WEKO 68325

en Shiozaki, Takuhei

Search repository
Furuya, Ken

× Furuya, Ken

WEKO 68326

en Furuya, Ken

Search repository
Kurotori, Hiroyuki

× Kurotori, Hiroyuki

WEKO 68327

en Kurotori, Hiroyuki

Search repository
Kodama, Taketoshi

× Kodama, Taketoshi

WEKO 68328

en Kodama, Taketoshi

Search repository
Takeda, Shigenobu

× Takeda, Shigenobu

WEKO 68329

en Takeda, Shigenobu

Search repository
Endoh, Takahiro

× Endoh, Takahiro

WEKO 68330

en Endoh, Takahiro

Search repository
Yoshikawa, Yutaka

× Yoshikawa, Yutaka

WEKO 68331

en Yoshikawa, Yutaka

Search repository
Ishizaka, Joji

× Ishizaka, Joji

WEKO 68332

en Ishizaka, Joji

Search repository
Matsuno, Takeshi

× Matsuno, Takeshi

WEKO 68333

en Matsuno, Takeshi

Search repository
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 [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
内容記述タイプ Abstract
出版者
言語 en
出版者 Wiley
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
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