| DOI: | 10.1002/2014GL059364
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| 论文题名: | Strong responses of Southern Ocean phytoplankton communities to volcanic ash |
| 作者: | Browning T.J.; Bouman H.A.; Henderson G.M.; Mather T.A.; Pyle D.M.; Schlosser C.; Woodward E.M.S.; Moore C.M.
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| 刊名: | Geophysical Research Letters
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| ISSN: | 0094-10126
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| EISSN: | 1944-9857
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| 出版年: | 2014
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| 卷: | 41, 期:8 | | 起始页码: | 2851
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| 结束页码: | 2857
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| 语种: | 英语
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| 英文关键词: | colimitation
; iron fertilization
; manganese
; phytoplankton
; Southern Ocean
; volcanic ash
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| Scopus关键词: | Bottles
; Experiments
; Iron
; Manganese
; Oceanography
; Volcanoes
; Co-limitation
; Enrichment experiments
; Iron fertilization
; Manganese concentration
; Phytoplankton bloom
; Phytoplankton community
; Southern ocean
; Volcanic ash
; Phytoplankton
; basalt
; biomass
; community response
; dissolved matter
; enrichment
; iron
; manganese
; nutrient limitation
; physiological response
; phytoplankton
; rhyolite
; volcanic ash
; Atlantic Ocean
; Atlantic Ocean (South)
; Southern Ocean
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| 英文摘要: | Volcanic eruptions have been hypothesized as an iron supply mechanism for phytoplankton blooms; however, little direct evidence of stimulatory responses has been obtained in the field. Here we present the results of twenty-one 1-2day bottle enrichment experiments from cruises in the South Atlantic and Southern Ocean which conclusively demonstrated a photophysiological and biomass stimulation of phytoplankton communities following supply of basaltic or rhyolitic volcanic ash. Furthermore, experiments in the Southern Ocean demonstrated significant phytoplankton community responses to volcanic ash supply in the absence of responses to addition of dissolved iron alone. At these sites, dissolved manganese concentrations were among the lowest ever measured in seawater, and we therefore suggest that the enhanced response to ash may have been a result of the relief of manganese (co)limitation. Our results imply that volcanic ash deposition events could trigger extensive phytoplankton blooms, potentially capable of significant impacts on regional carbon cycling. Key Points Bottle-scale iron and volcanic ash addition experiments were conducted Phytoplankton responded more to the ash than iron in a number of experiments The ash is suggested to have relieved phytoplankton manganese (co)limitation ©2014. The Authors. |
| URL: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-84899034226&doi=10.1002%2f2014GL059364&partnerID=40&md5=eb4804012f33df6495be36a8478f57e1
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| Citation statistics: |
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| 资源类型: | 期刊论文
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/7390
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| Appears in Collections: | 气候减缓与适应
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作者单位: | Department of Earth Sciences, University of Oxford, Oxford, United Kingdom
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| Recommended Citation: | |
Browning T.J.,Bouman H.A.,Henderson G.M.,et al. Strong responses of Southern Ocean phytoplankton communities to volcanic ash[J]. Geophysical Research Letters,2014-01-01,41(8).
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