Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1002/2017GL074602 |
Net community production in the bottom of first-year sea ice over the Arctic spring bloom | |
Campbell, K.1; Mundy, C. J.1; Gosselin, M.2; Landy, J. C.1,3; Delaforge, A.1; Rysgaard, S.1,4,5 | |
2017-09-16 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS |
ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2017 |
卷号 | 44期号:17 |
文章类型 | Article |
语种 | 英语 |
国家 | Canada; England; Denmark; Greenland |
英文摘要 | The balance of photosynthesis and respiration by organisms like algae and bacteria determines whether sea ice is net heterotrophic or autotrophic. In turn this clarifies the influence of microbes on atmosphere-ice-ocean gas fluxes and their contribution to the trophic system. In this study we define two phases of the spring bloom based on bottom ice net community production and algal growth. Phase I was characterized by limited algal accumulation and low productivity, which at times resulted in net heterotrophy. Greater productivity in Phase II drove rapid algal accumulation that consistently produced net autotrophic conditions. The different phases were associated with seasonal shifts in light availability and species dominance. Results from this study demonstrate the importance of community respiration on spring productivity, as respiration rates can maintain a heterotrophic state independent of algal growth. This challenges previous assumptions of a fully autotrophic sea ice community during the ice-covered spring. |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000411702400035 |
WOS关键词 | MARINE-PHYTOPLANKTON ; OXYGEN DYNAMICS ; ALGAE ; LIGHT ; PHOTOSYNTHESIS ; OCEAN ; ASSEMBLAGES ; MICROALGAE ; DIATOMS ; STRAIT |
WOS类目 | Geosciences, Multidisciplinary |
WOS研究方向 | Geology |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/28549 |
专题 | 气候变化 |
作者单位 | 1.Univ Manitoba, Fac Environm Earth & Resources, Ctr Earth Observat Sci, Winnipeg, MB, Canada; 2.Univ Quebec, Inst Sci Mer Rimouski, Rimouski, PQ, Canada; 3.Univ Bristol, Sch Geog Sci, Bristol Glaciol Ctr, Univ Rd, Bristol, Avon, England; 4.Univ Aarhus, Arctic Res Ctr, Dept Biosci, CF Mollers Alle 8,1110,213, Aarhus, Denmark; 5.Greenland Inst Nat Resources, Nuuk, Greenland |
推荐引用方式 GB/T 7714 | Campbell, K.,Mundy, C. J.,Gosselin, M.,et al. Net community production in the bottom of first-year sea ice over the Arctic spring bloom[J]. GEOPHYSICAL RESEARCH LETTERS,2017,44(17). |
APA | Campbell, K.,Mundy, C. J.,Gosselin, M.,Landy, J. C.,Delaforge, A.,&Rysgaard, S..(2017).Net community production in the bottom of first-year sea ice over the Arctic spring bloom.GEOPHYSICAL RESEARCH LETTERS,44(17). |
MLA | Campbell, K.,et al."Net community production in the bottom of first-year sea ice over the Arctic spring bloom".GEOPHYSICAL RESEARCH LETTERS 44.17(2017). |
条目包含的文件 | 条目无相关文件。 |
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