Widespread occurrence of distinct alkenones from Group I haptophytes in freshwater lakes: Implications for paleotemperature and paleoenvironmental reconstructions

doi:10.1016/j.eps1.2018.04.002

CORC > 地质与地球物理研究所 > 中国科学院地质与地球物理研究所 > 中国科学院新生代地质与环境重点实验室

	Widespread occurrence of distinct alkenones from Group I haptophytes in freshwater lakes: Implications for paleotemperature and paleoenvironmental reconstructions
	Longo, William M.1,18; Huang, Yongsong 1,2; Yao, Yuan 2; Zhao, Jiaju 2; Giblin, Anne E.3; Wang, Xian 1; Zech, Roland 4; Haberzettl, Torsten 17; Jardillier, Ludwig 5; Toney, Jaime 6
刊名	EARTH AND PLANETARY SCIENCE LETTERS
	2018-06-15
卷号	492 页码:239-250
关键词	alkenones paleoclimate paleoenvironment temperature proxy freshwater lakes chemotaxonomy
ISSN号	0012-821X
DOI	10.1016/j.eps1.2018.04.002
文献子类	Article
英文摘要	Alkenones are C35-C42 polyunsaturated ketone lipids that are commonly employed to reconstruct changes in sea surface temperature. However, their use in coastal seas and saline lakes can be hindered by species-mixing effects. We recently hypothesized that freshwater lakes are immune to species-mixing effects because they appear to exclusively host Group I haptophyte algae, which produce a distinct distribution of alkenones with a relatively consistent response of alkenone unsaturation to temperature. To evaluate this hypothesis and explore the geographic extent of Group I haptophytes, we analyzed alkenones in sediment and suspended particulate matter samples from lakes distributed throughout the mid- and high latitudes of the Northern Hemisphere (n = 30). Our results indicate that Group I-type alkenone distributions are widespread in freshwater lakes from a range of different climates (mean annual air temperature range: -17.3-10.9 degrees C; mean annual precipitation range: 125-1657 mm yr(-1); latitude range: 40-81 degrees N), and are commonly found in neutral to basic lakes (pH > 7.0), including volcanic lakes and lakes with mafic bedrock. We show that these freshwater lakes do not feature alkenone distributions characteristic of Group II lacustrine haptophytes, providing support for the hypothesis that freshwater lakes are immune to species-mixing effects. In lakes that underwent temporal shifts in salinity, we observed mixed Group I/II alkenone distributions and the alkenone contributions from each group could be quantified with the RIK37 index. Additionally, we observed significant correlations of alkenone unsaturation (U-37(K)) with seasonal and mean annual air temperature with this expanded freshwater lakes dataset, with the strongest correlation occurring during the spring transitional season (U-37(K) = 0.029 * T - 0.49; r(2) = 0.60; p < 0.0001). We present new sediment trap data from two lakes in northern Alaska (Toolik Lake, 68.632 degrees N, 149.602 degrees W; lake E5, 68.643 degrees N, 149.458 degrees W) that demonstrate the highest sedimentary fluxes of alkenones in the spring transitional season, concurrent with the period of lake ice melt and isothermal mixing. Together, these data provide a framework for evaluating lacustrine alkenone distributions and utilizing alkenone unsaturation as a lake temperature proxy. (C) 2018 Elsevier B.V. All rights reserved.
WOS关键词	LONG-CHAIN-ALKENONES ; GROWTH TEMPERATURE ; EMILIANIA-HUXLEYI ; GEPHYROCAPSA-OCEANICA ; TIBETAN PLATEAU ; BALTIC SEA ; DISTRIBUTIONS ; LACUSTRINE ; SEDIMENTS ; SALINITY
WOS研究方向	Geochemistry & Geophysics
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000432762000023
资助机构	NSF(PLR-1503846 ; NSF(PLR-1503846 ; National Geographic Society ; National Geographic Society ; RSF(17-77-10086) ; RSF(17-77-10086) ; RFBR ; RFBR ; Government of the Novosibirsk Region(17-45-540527) ; Government of the Novosibirsk Region(17-45-540527) ; Ministry of Education and Science of the Russian Federation(14.Y26.31.0018) ; Ministry of Education and Science of the Russian Federation(14.Y26.31.0018) ; MEXT-Japan KAKENHI(24651019 ; MEXT-Japan KAKENHI(24651019 ; National Natural Science Foundation of China(41573113) ; National Natural Science Foundation of China(41573113) ; DEB-1026843) ; DEB-1026843) ; 2621101002 ; 2621101002 ; 101002) ; 101002) ; NSF(PLR-1503846 ; NSF(PLR-1503846 ; National Geographic Society ; National Geographic Society ; RSF(17-77-10086) ; RSF(17-77-10086) ; RFBR ; RFBR ; Government of the Novosibirsk Region(17-45-540527) ; Government of the Novosibirsk Region(17-45-540527) ; Ministry of Education and Science of the Russian Federation(14.Y26.31.0018) ; Ministry of Education and Science of the Russian Federation(14.Y26.31.0018) ; MEXT-Japan KAKENHI(24651019 ; MEXT-Japan KAKENHI(24651019 ; National Natural Science Foundation of China(41573113) ; National Natural Science Foundation of China(41573113) ; DEB-1026843) ; DEB-1026843) ; 2621101002 ; 2621101002 ; 101002) ; 101002) ; NSF(PLR-1503846 ; NSF(PLR-1503846 ; National Geographic Society ; National Geographic Society ; RSF(17-77-10086) ; RSF(17-77-10086) ; RFBR ; RFBR ; Government of the Novosibirsk Region(17-45-540527) ; Government of the Novosibirsk Region(17-45-540527) ; Ministry of Education and Science of the Russian Federation(14.Y26.31.0018) ; Ministry of Education and Science of the Russian Federation(14.Y26.31.0018) ; MEXT-Japan KAKENHI(24651019 ; MEXT-Japan KAKENHI(24651019 ; National Natural Science Foundation of China(41573113) ; National Natural Science Foundation of China(41573113) ; DEB-1026843) ; DEB-1026843) ; 2621101002 ; 2621101002 ; 101002) ; 101002) ; NSF(PLR-1503846 ; NSF(PLR-1503846 ; National Geographic Society ; National Geographic Society ; RSF(17-77-10086) ; RSF(17-77-10086) ; RFBR ; RFBR ; Government of the Novosibirsk Region(17-45-540527) ; Government of the Novosibirsk Region(17-45-540527) ; Ministry of Education and Science of the Russian Federation(14.Y26.31.0018) ; Ministry of Education and Science of the Russian Federation(14.Y26.31.0018) ; MEXT-Japan KAKENHI(24651019 ; MEXT-Japan KAKENHI(24651019 ; National Natural Science Foundation of China(41573113) ; National Natural Science Foundation of China(41573113) ; DEB-1026843) ; DEB-1026843) ; 2621101002 ; 2621101002 ; 101002) ; 101002)
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/88215]
专题	地质与地球物理研究所_中国科学院新生代地质与环境重点实验室
通讯作者	Longo, William M.; Huang, Yongsong
作者单位	1.Brown Univ, Dept Earth Environm & Planetary Sci, 324 Brook St, Providence, RI 02912 USA 2.Chinese Acad Sci, Inst Earth Environm, Beijing, Shaanxi, Peoples R China 3.Marine Biol Lab, Ecosyst Ctr, 7 MBL St, Woods Hole, MA 02543 USA 4.Friedrich Schiller Univ Jena, Inst Geog, D-07745 Jena, Germany 5.Univ Paris 11, CNRS UMR 8079, Unite Ecol Systemat & Evolut, F-91405 Orsay, France 6.Univ Glasgow, Dept Geog & Earth Sci, Glasgow, Lanark, Scotland 7.Univ Hong Kong, Dept Earth Sci, Hong Kong, Hong Kong, Peoples R China 8.RAS, SB, Inst Geol & Mineral, Novosibirsk 630090, Russia 9.Novosibirsk State Univ, Novosibirsk 630090, Russia 10.Chinese Acad Sci, Inst Geol & Geophys, Beijing, Peoples R China
推荐引用方式 GB/T 7714	Longo, William M.,Huang, Yongsong,Yao, Yuan,et al. Widespread occurrence of distinct alkenones from Group I haptophytes in freshwater lakes: Implications for paleotemperature and paleoenvironmental reconstructions[J]. EARTH AND PLANETARY SCIENCE LETTERS,2018,492:239-250.
APA	Longo, William M..,Huang, Yongsong.,Yao, Yuan.,Zhao, Jiaju.,Giblin, Anne E..,...&Shinozuka, Yoshitsugu.(2018).Widespread occurrence of distinct alkenones from Group I haptophytes in freshwater lakes: Implications for paleotemperature and paleoenvironmental reconstructions.EARTH AND PLANETARY SCIENCE LETTERS,492,239-250.
MLA	Longo, William M.,et al."Widespread occurrence of distinct alkenones from Group I haptophytes in freshwater lakes: Implications for paleotemperature and paleoenvironmental reconstructions".EARTH AND PLANETARY SCIENCE LETTERS 492(2018):239-250.