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Effect of iron enrichment on the dynamics of transparent exopolymer particles in the western subarctic Pacific
https://repo.qst.go.jp/records/43653
https://repo.qst.go.jp/records/4365377cfd82a-7cf3-4254-bb81-c4f26f66b859
| Item type | 学術雑誌論文 / Journal Article(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2005-05-02 | |||||
| タイトル | ||||||
| タイトル | Effect of iron enrichment on the dynamics of transparent exopolymer particles in the western subarctic Pacific | |||||
| 言語 | ||||||
| 言語 | eng | |||||
| 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 | journal article | |||||
| 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 |
Ramaiah, Neelam
× Ramaiah, Neelam× Takeda, Shigenobu× Furuya, Ken× Yoshimura, Takeshi× Nishioka, Jun× Aono, Tatsuo× Nojiri, Yukihiro× Imai, Keiri× Kudo, Isao× Saito, Hiroaki× Tsuda, Atsushi× 青野 辰雄 |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | Dynamics of transparent exopolymer particles (TEP) was studied during the first in situ iron-enrichment experiment conducted in the western subarctic Pacific in July-August 2001, with the goal of evaluating the contribution of TEP to vertical flux as a result of increased primary production following iron enrichment in open ocean ecosystems. Subsequent to the enhancement of phytoplankton production, we observed increase in TEP concentration in the surface layer and sedimentation of organic matter beneath it. Vertical profiles of TEP, chlorophyll a (Chl a) and particulate organic carbon (POC) were obtained from six depths between 5 and 70 m, from a station each located inside and outside the enriched patch. TEP and total mass flux were estimated from the floating sediment traps deployed at 200 m depth. Chl a and TEP concentrations outside the patch varied from 0.2 to 1.9 ug L-1 and 40-60 ug XG equiv. L-1, respectively. Inside the patch, Chl a increased drastically from day 7 reaching the peak of 19.2 ug L-1 on day 13, which coincided with the TEP peak of 189 ug XG equiv. L-1. TEP flux in the sediment trap increased from 41 to 88 mg XG equiv. m-2 d-1, with 8-14% contribution of TEP to total mass flux. This forms the basic data set on ambient concentrations of TEP in the western subarctic Pacific, and evaluation of the effect of iron enrichment on TEP. | |||||
| 書誌情報 |
Progress in Oceanography 巻 64, 号 2-4, p. 253-261, 発行日 2005-04 |
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| ISSN | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 0079-6611 | |||||
