IOCAS-IR  > 海洋生态与环境科学重点实验室
Effects of increased pCO(2) and temperature on the North Atlantic spring bloom. I. The phytoplankton community and biogeochemical response
Feng, Yuanyuan1; Hare, Clinton E.1; Leblanc, Karine1; Rose, Julie M.1; Zhang, Yaohong1; DiTullio, Giacomo R.2; Lee, Peter A.2; Wilhelm, Steven W.3; Rowe, Janet M.3; Sun, Jun4; Nemcek, Nina5; Gueguen, Celine5; Passow, Uta6; Benner, Ina6; Brown, Christopher7; Hutchins, David A.1
2009
发表期刊MARINE ECOLOGY PROGRESS SERIES
ISSN0171-8630
卷号388页码:13-25
文章类型Article
摘要The North Atlantic spring bloom is one of the largest annual biological events in the ocean, and is characterized by dominance transitions from siliceous (diatoms) to calcareous (coccolithophores) algal groups. To study the effects of future global change on these phytoplankton and the biogeochemical cycles they mediate, a shipboard continuous culture experiment (Ecostat) was conducted in June 2005 during this transition period. Four treatments were examined: (1) 12 degrees C and 390 ppm CO2 (ambient control), (2) 12 degrees C and 690 ppm CO2 (high pCO(2)) (3) 16 degrees C and 390 ppm CO2 (high temperature), and (4) 16 degrees C and 690 ppm CO2 ('greenhouse'). Nutrient availability in all treatments was designed to reproduce the low silicate conditions typical of this late stage of the bloom. Both elevated pCO(2) and temperature resulted in changes in phytoplankton community structure. Increased temperature promoted whole community photosynthesis and particulate organic carbon (POC) production rates per unit chlorophyll a. Despite much higher coccolithophore abundance in the greenhouse treatment, particulate inorganic carbon production (calcification) was significantly decreased by the combination of increased pCO(2) and temperature. Our experiments suggest that future trends during the bloom could include greatly reduced export of calcium carbonate relative to POC, thus providing a potential negative feedback to atmospheric CO2 concentration. Other trends with potential climate feedback effects include decreased community biogenic silica to POC ratios at higher temperature. These shipboard experiments suggest the need to examine whether future pCO2 and temperature increases on longer decadal timescales will similarly alter the biological and biogeochemical dynamics of the North Atlantic spring bloom.; The North Atlantic spring bloom is one of the largest annual biological events in the ocean, and is characterized by dominance transitions from siliceous (diatoms) to calcareous (coccolithophores) algal groups. To study the effects of future global change on these phytoplankton and the biogeochemical cycles they mediate, a shipboard continuous culture experiment (Ecostat) was conducted in June 2005 during this transition period. Four treatments were examined: (1) 12 degrees C and 390 ppm CO2 (ambient control), (2) 12 degrees C and 690 ppm CO2 (high pCO(2)) (3) 16 degrees C and 390 ppm CO2 (high temperature), and (4) 16 degrees C and 690 ppm CO2 ('greenhouse'). Nutrient availability in all treatments was designed to reproduce the low silicate conditions typical of this late stage of the bloom. Both elevated pCO(2) and temperature resulted in changes in phytoplankton community structure. Increased temperature promoted whole community photosynthesis and particulate organic carbon (POC) production rates per unit chlorophyll a. Despite much higher coccolithophore abundance in the greenhouse treatment, particulate inorganic carbon production (calcification) was significantly decreased by the combination of increased pCO(2) and temperature. Our experiments suggest that future trends during the bloom could include greatly reduced export of calcium carbonate relative to POC, thus providing a potential negative feedback to atmospheric CO2 concentration. Other trends with potential climate feedback effects include decreased community biogenic silica to POC ratios at higher temperature. These shipboard experiments suggest the need to examine whether future pCO2 and temperature increases on longer decadal timescales will similarly alter the biological and biogeochemical dynamics of the North Atlantic spring bloom.
关键词Ocean Acidification Global Change Carbon Dioxide Temperature Coccolithophores Diatoms Calcification North Atlantic Bloom
学科领域Ecology ; Marine & Freshwater Biology ; Oceanography
DOI10.3354/meps08133
URL查看原文
收录类别SCI
语种英语
WOS记录号WOS:000269892700003
引用统计
被引频次:197[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.qdio.ac.cn/handle/337002/2602
专题海洋生态与环境科学重点实验室
作者单位1.Univ Delaware, Coll Marine & Earth Studies, Lewes, DE 19958 USA
2.Coll Charleston, Hollings Marine Lab, Charleston, SC 29412 USA
3.Univ Tennessee, Dept Microbiol, Knoxville, TN 37996 USA
4.Chinese Acad Sci, Inst Oceanol, Key Lab Marine Ecol & Environm Sci, Qingdao 266071, Peoples R China
5.Univ British Columbia, Dept Earth & Ocean Sci, Vancouver, BC V6T 1Z4, Canada
6.Alfred Wegener Inst Polar & Marine Res, D-27568 Bremerhaven, Germany
7.Univ Maryland, Earth Syst Sci Interdisciplinary Ctr, College Pk, MD 20740 USA
推荐引用方式
GB/T 7714
Feng, Yuanyuan,Hare, Clinton E.,Leblanc, Karine,et al. Effects of increased pCO(2) and temperature on the North Atlantic spring bloom. I. The phytoplankton community and biogeochemical response[J]. MARINE ECOLOGY PROGRESS SERIES,2009,388:13-25.
APA Feng, Yuanyuan.,Hare, Clinton E..,Leblanc, Karine.,Rose, Julie M..,Zhang, Yaohong.,...&Hutchins, David A..(2009).Effects of increased pCO(2) and temperature on the North Atlantic spring bloom. I. The phytoplankton community and biogeochemical response.MARINE ECOLOGY PROGRESS SERIES,388,13-25.
MLA Feng, Yuanyuan,et al."Effects of increased pCO(2) and temperature on the North Atlantic spring bloom. I. The phytoplankton community and biogeochemical response".MARINE ECOLOGY PROGRESS SERIES 388(2009):13-25.
条目包含的文件
文件名称/大小 文献类型 版本类型 开放类型 使用许可
feng-Effects of incr(304KB) 限制开放--浏览
个性服务
推荐该条目
保存到收藏夹
查看访问统计
导出为Endnote文件
谷歌学术
谷歌学术中相似的文章
[Feng, Yuanyuan]的文章
[Hare, Clinton E.]的文章
[Leblanc, Karine]的文章
百度学术
百度学术中相似的文章
[Feng, Yuanyuan]的文章
[Hare, Clinton E.]的文章
[Leblanc, Karine]的文章
必应学术
必应学术中相似的文章
[Feng, Yuanyuan]的文章
[Hare, Clinton E.]的文章
[Leblanc, Karine]的文章
相关权益政策
暂无数据
收藏/分享
文件名: feng-Effects of increased.pdf
格式: Adobe PDF
此文件暂不支持浏览
所有评论 (0)
暂无评论
 

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。