globalchange  > 影响、适应和脆弱性
DOI: 10.1111/gcb.13701
论文题名:
Acclimation of bloom-forming and perennial seaweeds to elevated pCO2 conserved across levels of environmental complexity
作者: Xu D.; Schaum C.-E.; Lin F.; Sun K.; Munroe J.R.; Zhang X.W.; Fan X.; Teng L.H.; Wang Y.T.; Zhuang Z.M.; Ye N.
刊名: Global Change Biology
ISSN: 13541013
出版年: 2017
语种: 英语
英文关键词: CO 2 ; Acclimation ; Environmental complexity ; Growth ; Photosynthesis ; Respiration ; Seaweed
英文摘要: Macroalgae contribute approximately 15% of the primary productivity in coastal marine ecosystems, fix up to 27.4 Tg of carbon per year, and provide important structural components for life in coastal waters. Despite this ecological and commercial importance, direct measurements and comparisons of the short-term responses to elevated pCO2 in seaweeds with different life-history strategies are scarce. Here, we cultured several seaweed species (bloom forming/nonbloom forming/perennial/annual) in the laboratory, in tanks in an indoor mesocosm facility, and in coastal mesocosms under pCO2 levels ranging from 400 to 2,000 μatm. We find that, across all scales of the experimental setup, ephemeral species of the genus Ulva increase their photosynthesis and growth rates in response to elevated pCO2 the most, whereas longer-lived perennial species show a smaller increase or a decrease. These differences in short-term growth and photosynthesis rates are likely to give bloom-forming green seaweeds a competitive advantage in mixed communities, and our results thus suggest that coastal seaweed assemblages in eutrophic waters may undergo an initial shift toward communities dominated by bloom-forming, short-lived seaweeds. © 2017 John Wiley & Sons Ltd.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/61120
Appears in Collections:影响、适应和脆弱性

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作者单位: Yellow Sea Fisheries Research Institute Chinese Academy of Fishery Sciences Qingdao China; Function Laboratory for Marine Fisheries Science and Food Production Processes Qingdao National Laboratory for Marine Science and Technology Qingdao China; Biosciences, Environment and Sustainability Institute University of Exeter Penryn UK; First Institute of Oceanography State Oceanic Administration Qingdao China; Laboratory for Regional Oceanography and Numerical Modeling Qingdao National Laboratory for Marine Science and Technology Qingdao China; Department of Physics and Physical Oceanography Memorial University of Newfoundland St. John's, NL Canada

Recommended Citation:
Xu D.,Schaum C.-E.,Lin F.,et al. Acclimation of bloom-forming and perennial seaweeds to elevated pCO2 conserved across levels of environmental complexity[J]. Global Change Biology,2017-01-01
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