Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2019GL085602 |
Understanding Diatoms' Past and Future Biogeochemical Role in High-Latitude Seas | |
Krause, Jeffrey W.1,2; Lomas, Michael W.3 | |
2020-01-16 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS |
ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2020 |
卷号 | 47期号:1 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | Because cold-water diatoms' baseline elemental density (BED) is substantially higher than temperate diatoms, previous polar studies may have underestimated diatoms' contribution to elemental standing stocks, contribution to particulate organic carbon (POC) export and incorrectly modeled their susceptibility to future warming. We apply cold-water diatom allometry to Arctic field samples and derive diatom growth rates ranging from 0.01-0.68 day(-1), versus unrealistically high rates estimated using temperate diatom allometry. Reanalysis of published Southern Ocean data (Antarctic Environment and Southern Ocean Process Study and European Iron Fertilization Experiment) shows that diatom POC was significantly underestimated and diatoms could have accounted for a majority of POC export. However, during some field programs (Kerguelen Plateau), temperate allometry properly accounted for diatom biomass. We also predict that warming sea surface temperature may alter high-latitude diatom BED, suggesting that even if abundances do not change with warming, the reduced diatom BED will likely lower the trophic-transfer efficiency and their total carbon flow to consumers. |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000513983400027 |
WOS关键词 | ANTARCTIC POLAR FRONT ; PARTICULATE ORGANIC-CARBON ; BIOGENIC SILICA ; PACIFIC SECTOR ; COMMUNITY STRUCTURE ; SOUTHERN-OCEAN ; BIOMASS ; MARINE ; PHYTOPLANKTON ; TEMPERATURE |
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/279491 |
专题 | 气候变化 |
作者单位 | 1.Dauphin Isl Sea Lab, Dauphin Isl, AL 36528 USA; 2.Univ S Alabama, Dept Marine Sci, Mobile, AL 36688 USA; 3.Bigelow Lab Ocean Sci, East Boothbay, ME USA |
推荐引用方式 GB/T 7714 | Krause, Jeffrey W.,Lomas, Michael W.. Understanding Diatoms' Past and Future Biogeochemical Role in High-Latitude Seas[J]. GEOPHYSICAL RESEARCH LETTERS,2020,47(1). |
APA | Krause, Jeffrey W.,&Lomas, Michael W..(2020).Understanding Diatoms' Past and Future Biogeochemical Role in High-Latitude Seas.GEOPHYSICAL RESEARCH LETTERS,47(1). |
MLA | Krause, Jeffrey W.,et al."Understanding Diatoms' Past and Future Biogeochemical Role in High-Latitude Seas".GEOPHYSICAL RESEARCH LETTERS 47.1(2020). |
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