Articles | Volume 16, issue 11
https://doi.org/10.5194/bg-16-2247-2019
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/bg-16-2247-2019
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
04 Jun 2019
Research article |
| 04 Jun 2019
| 04 Jun 2019
Seasonality of archaeal lipid flux and GDGT-based thermometry in sinking particles of high-latitude oceans: Fram Strait (79° N) and Antarctic Polar Front (50° S)
Eunmi Park
CORRESPONDING AUTHOR
Alfred Wegener Institute, Helmholtz Center for Polar and Marine
Sciences, 27570 Bremerhaven, Germany
MARUM – Center for Marine Environmental Sciences, University of Bremen, 28334 Bremen, Germany
Department of Geosciences, University of Bremen, 28334 Bremen,
Germany
Jens Hefter
Alfred Wegener Institute, Helmholtz Center for Polar and Marine
Sciences, 27570 Bremerhaven, Germany
Gerhard Fischer
MARUM – Center for Marine Environmental Sciences, University of Bremen, 28334 Bremen, Germany
Department of Geosciences, University of Bremen, 28334 Bremen,
Germany
Morten Hvitfeldt Iversen
Alfred Wegener Institute, Helmholtz Center for Polar and Marine
Sciences, 27570 Bremerhaven, Germany
MARUM – Center for Marine Environmental Sciences, University of Bremen, 28334 Bremen, Germany
Simon Ramondenc
Alfred Wegener Institute, Helmholtz Center for Polar and Marine
Sciences, 27570 Bremerhaven, Germany
MARUM – Center for Marine Environmental Sciences, University of Bremen, 28334 Bremen, Germany
Eva-Maria Nöthig
Alfred Wegener Institute, Helmholtz Center for Polar and Marine
Sciences, 27570 Bremerhaven, Germany
Gesine Mollenhauer
Alfred Wegener Institute, Helmholtz Center for Polar and Marine
Sciences, 27570 Bremerhaven, Germany
MARUM – Center for Marine Environmental Sciences, University of Bremen, 28334 Bremen, Germany
Department of Geosciences, University of Bremen, 28334 Bremen,
Germany
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- Dissolved oxygen concentrations influence the distribution of isoGDGTs in a deep Lake Fuxian in China: Implications for the use of TEX86 in stratified lakes P. Zheng et al. https://doi.org/10.1016/j.orggeochem.2022.104485
- Evaluation of lipid biomarkers as proxies for sea ice and ocean temperatures along the Antarctic continental margin N. Lamping et al. https://doi.org/10.5194/cp-17-2305-2021
- Spatial distribution of n-alkanes and GDGTs in the central Arctic Ocean during Marine Isotope Stages 1, 2 and 3 A. Singh et al. https://doi.org/10.1016/j.orggeochem.2024.104920
- Impact of non-thermal variables on hydroxylated GDGT distributions around Iceland D. Harning & J. Sepúlveda https://doi.org/10.3389/feart.2024.1430441
- Assessing GDGT-derived (sub)surface temperature proxies in Arctic fjord sediments: A 14 kyr record from the Kongsfjorden Trough, Svalbard J. Kim et al. https://doi.org/10.1016/j.palaeo.2026.114070
- New isoprenoid GDGT index as a water mass and temperature proxy in the Southern Ocean H. Ishii et al. https://doi.org/10.5194/cp-22-585-2026
- Past intrusion of Circumpolar Deep Water in the Ross Sea: Impacts on the ancient Ross Ice Shelf C. Pambianco et al. https://doi.org/10.1126/sciadv.adt7075
- Towards understanding archaeal lipid biomarker (GDGT) distributions in central Arctic Ocean sediments J. Martens et al. https://doi.org/10.1016/j.gca.2026.04.019
- Comparison of the U37K′, LDI, TEX86H, and RI-OH temperature proxies in sediments from the northern shelf of the South China Sea B. Wei et al. https://doi.org/10.5194/bg-17-4489-2020
- Constraining Water Depth Influence on Organic Paleotemperature Proxies Using Sedimentary Archives D. Varma et al. https://doi.org/10.1029/2022PA004533
- Exploring the application of TEX86 and the sources of organic matter in the Antarctic coastal region A. Dauner et al. https://doi.org/10.1016/j.orggeochem.2021.104288
- Sources and implications of hydroxylated isoprenoid GDGTs on the northwest shelf of Australia through the Pliocene-Pleistocene era Y. He et al. https://doi.org/10.1016/j.chemgeo.2024.121975
- Biomarker characterization of the North Water Polynya, Baffin Bay: implications for local sea ice and temperature proxies D. Harning et al. https://doi.org/10.5194/bg-20-229-2023
- The Novel Hydroxylated Tetraether Index RI‐OH′ as a Sea Surface Temperature Proxy for the 160‐45 ka BP Period Off the Iberian Margin N. Davtian et al. https://doi.org/10.1029/2020PA004077
- Depth related variation of isoprenoid and hydroxylated tetraether lipids in Lake Lugu, Southwest China: Implications for palaeoenvironmental reconstructions J. Li et al. https://doi.org/10.1016/j.chemgeo.2023.121313
- Sea ice dynamics in the Bransfield Strait, Antarctic Peninsula, during the past 240 years: a multi-proxy intercomparison study M. Vorrath et al. https://doi.org/10.5194/cp-16-2459-2020
- Late Quaternary glacier and sea‐ice history of northern Wijdefjorden, Svalbard L. Allaart et al. https://doi.org/10.1111/bor.12435
- Diatom lipids open window to past ocean temperatures in the polar regions S. Belt et al. https://doi.org/10.1038/s43247-025-03177-1
- Improving the paleoceanographic proxy tool kit – On the biogeography and ecology of the sea ice-associated species Fragilariopsis oceanica, Fragilariopsis reginae-jahniae and Fossula arctica in the northern North Atlantic K. Weckström et al. https://doi.org/10.1016/j.marmicro.2020.101860
- Predicting the future of coastal marine ecosystems in the rapidly changing Arctic: The potential of palaeoenvironmental records M. Heikkilä et al. https://doi.org/10.1016/j.ancene.2021.100319
- 3-Hydroxy fatty acids as proxies for seawater temperature and pH in the eastern China marginal seas F. Pan et al. https://doi.org/10.1016/j.chemgeo.2022.121258
- Southern Ocean sea surface temperature synthesis: Part 1. Evaluation of temperature proxies at glacial-interglacial time scales D. Chandler & P. Langebroek https://doi.org/10.1016/j.quascirev.2021.107191
- Late Paleocene–early Eocene Arctic Ocean sea surface temperatures: reassessing biomarker paleothermometry at Lomonosov Ridge A. Sluijs et al. https://doi.org/10.5194/cp-16-2381-2020
- A downcore calibration of the TEX86L temperature proxy for the Baltic Sea A. Wittenborn et al. https://doi.org/10.1016/j.csr.2022.104875
Saved (final revised paper)
Latest update: 13 Oct 2026
Short summary
We analyzed GDGT-based proxy temperatures in the polar oceans. In the eastern Fram Strait (79° N), the nutrient distribution may determine the depth habit of Thaumarchaeota and thus the proxy temperature. In the Antarctic Polar Front (50° S), the contribution of Euryarchaeota or the nonlinear correlation between the proxy values and temperatures may cause the warm biases of the proxy temperatures relative to SSTs.
We analyzed GDGT-based proxy temperatures in the polar oceans. In the eastern Fram Strait...
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