Articles | Volume 18, issue 15
https://doi.org/10.5194/bg-18-4491-2021
© Author(s) 2021. 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-18-4491-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
02 Aug 2021
Research article |
| 02 Aug 2021
| 02 Aug 2021
Stable isotope ratios in seawater nitrate reflect the influence of Pacific water along the northwest Atlantic margin
Department of Earth and Environmental Sciences, Dalhousie University,
Halifax, NS, B3H 4R2, Canada
Samuel H. Davin
Geotop Research Centre, Université du Québec à
Montréal, Montréal, QC, H3C 3P8, Canada
Nadine Lehmann
Department of Oceanography, Dalhousie University, Halifax, NS, B3H
4R2, Canada
Carolyn Buchwald
Department of Oceanography, Dalhousie University, Halifax, NS, B3H
4R2, Canada
Evan N. Edinger
Department of Geography, Department of Biology, and Department of
Earth Sciences, Memorial University of Newfoundland, St. John's, NL, A1B
3X9, Canada
Moritz F. Lehmann
Department of Environmental Sciences, University of Basel, Basel,
4056, Switzerland
Markus Kienast
Department of Oceanography, Dalhousie University, Halifax, NS, B3H
4R2, Canada
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Cited
12 citations as recorded by crossref.
- Decadal Variability in Subsurface Nutrient Availability on the Scotian Shelf Reflects Changes in the Northwest Atlantic Ocean N. Lehmann et al. 10.1029/2023JC019928
- Sources and Cycling of Particulate Organic Matter in Baffin Bay: A Multi-Isotope δ13C, δ15N, and Δ14C Approach A. Fox & B. Walker 10.3389/fmars.2022.846025
- Amino acid δ13C and δ15N fingerprinting of sea ice and pelagic algae in Canadian Arctic and Subarctic Seas S. Chen et al. 10.3389/fmars.2022.976908
- Contrasting nitrogen dynamics across the Mid‐Atlantic Bight shelfbreak front: Insights from nitrate dual isotopes and nitrifier gene abundance Y. Zhu et al. 10.1002/lno.12678
- Characterizing regional oceanography and bottom environmental conditions at two contrasting sponge grounds on the northern Labrador Shelf E. de Froe et al. 10.5194/bg-21-5407-2024
- Physical and Biogeochemical Influences on Nutrients Through the Canadian Arctic Archipelago: Insights From Nitrate Isotope Ratios N. Lehmann et al. 10.1029/2021JC018179
- Sea-ice-associated algae and zooplankton fecal pellets fuel organic particle export in the seasonally ice-covered northwestern Labrador Sea S. Chen et al. 10.5194/bg-22-2517-2025
- Long-term ocean and resource dynamics in a hotspot of climate change H. Lotze et al. 10.1139/facets-2021-0197
- Sea–air methane flux estimates derived from marine surface observations and instantaneous atmospheric measurements in the northern Labrador Sea and Baffin Bay J. Vogt et al. 10.5194/bg-20-1773-2023
- Nitrogen uptake rates and phytoplankton composition across contrasting North Atlantic Ocean coastal regimes north and south of Cape Hatteras Y. Zhu et al. 10.3389/fmicb.2024.1380179
- Marine nitrogen-fixers in the Canadian Arctic Gateway are dominated by biogeographically distinct noncyanobacterial communities B. Robicheau et al. 10.1093/femsec/fiad122
- Stable isotope ratios in seawater nitrate reflect the influence of Pacific water along the northwest Atlantic margin O. Sherwood et al. 10.5194/bg-18-4491-2021
11 citations as recorded by crossref.
- Decadal Variability in Subsurface Nutrient Availability on the Scotian Shelf Reflects Changes in the Northwest Atlantic Ocean N. Lehmann et al. 10.1029/2023JC019928
- Sources and Cycling of Particulate Organic Matter in Baffin Bay: A Multi-Isotope δ13C, δ15N, and Δ14C Approach A. Fox & B. Walker 10.3389/fmars.2022.846025
- Amino acid δ13C and δ15N fingerprinting of sea ice and pelagic algae in Canadian Arctic and Subarctic Seas S. Chen et al. 10.3389/fmars.2022.976908
- Contrasting nitrogen dynamics across the Mid‐Atlantic Bight shelfbreak front: Insights from nitrate dual isotopes and nitrifier gene abundance Y. Zhu et al. 10.1002/lno.12678
- Characterizing regional oceanography and bottom environmental conditions at two contrasting sponge grounds on the northern Labrador Shelf E. de Froe et al. 10.5194/bg-21-5407-2024
- Physical and Biogeochemical Influences on Nutrients Through the Canadian Arctic Archipelago: Insights From Nitrate Isotope Ratios N. Lehmann et al. 10.1029/2021JC018179
- Sea-ice-associated algae and zooplankton fecal pellets fuel organic particle export in the seasonally ice-covered northwestern Labrador Sea S. Chen et al. 10.5194/bg-22-2517-2025
- Long-term ocean and resource dynamics in a hotspot of climate change H. Lotze et al. 10.1139/facets-2021-0197
- Sea–air methane flux estimates derived from marine surface observations and instantaneous atmospheric measurements in the northern Labrador Sea and Baffin Bay J. Vogt et al. 10.5194/bg-20-1773-2023
- Nitrogen uptake rates and phytoplankton composition across contrasting North Atlantic Ocean coastal regimes north and south of Cape Hatteras Y. Zhu et al. 10.3389/fmicb.2024.1380179
- Marine nitrogen-fixers in the Canadian Arctic Gateway are dominated by biogeographically distinct noncyanobacterial communities B. Robicheau et al. 10.1093/femsec/fiad122
Latest update: 10 Jul 2025
Short summary
Pacific water flowing eastward through the Canadian Arctic plays an important role in redistributing nutrients to the northwest Atlantic Ocean. Using samples collected from northern Baffin Bay to the southern Labrador Shelf, we show that stable isotopic ratios in seawater nitrate reflect the fraction of Pacific to Atlantic water. These results provide a new framework for interpreting patterns of nitrogen isotopic variability recorded in modern and archival organic materials in the region.
Pacific water flowing eastward through the Canadian Arctic plays an important role in...
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