Not logged in
PANGAEA.
Data Publisher for Earth & Environmental Science

Juma, Gabriel A; Grotheer, Hendrik; Ruben, Manuel Jannis; Meunier, Cédric Léo; Mollenhauer, Gesine; Boersma, Maarten (2026): Isotopic composition of water and planktonic communities during Canadian Arctic expedition in summer 2023 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.994161

Always quote citation above when using data! You can download the citation in several formats below.

Published: 2026-06-15 • DOI registered: 2026-07-14

RIS CitationBibTeX Citation ShareShow MapGoogle Earth

Abstract:
The Yukon Coast Land Expedition was conducted in July 2023 along an active retrogressive thaw slump; active-slump (AS), and a non-slump (NS) transect up to 2000 m from the shore, near Herschel Island-Qikiqtaruk, in the Northwest Canadian Arctic. The aim was to investigate the the concentrations and isotopic composition (δ13C, 14C, and 15N) of DIC and POC in the water column. Additionally, isotopic analysis was done for the most abundant organisms in the different trophic levels within the Arctic Ocean's nearshore zone to determine organic carbon (OC) sources and utilization in the coastal food web. The surface water was taken at the upper 50 cm while the bottom water was taken at 50 cm above the sediment, using a USB 50050 water sampler. δ13C and δ15N were measured using an Elementar Vario EL Cube, interfaced to an Isoprime VisION IRMS (Elementar UK Ltd, Cheadle, UK) at University of California-Davis in the USA. δ14C was determined using Mini Carbon Dating System (MICADAS) accelerator mass spectrometer at the Alfred-Wegener-Institute, Bremerhaven in Germany.
Keyword(s):
Arctic Ocean; Carbon sources; Marine foodweb; Nearshore zone; Organic carbon utilization; Permafrost coasts; Planktonic organisms
Related to:
Bristol, Emily; Connolly, Craig; Lorenson, Thomas D; Richmond, Bruce M; Ilgen, Anastasia G; Choens, R Charles; Bull, Diana L; Kanevskiy, Mikhail Z; Iwahana, Go; Jones, Benjamin M; McClelland, James W (2021): Geochemistry of Coastal Permafrost and Erosion-Driven Organic Matter Fluxes to the Beaufort Sea Near Drew Point, Alaska. Frontiers in Earth Science, 8, 598933, https://doi.org/10.3389/feart.2020.598933
Mollenhauer, Gesine; Grotheer, Hendrik; Gentz, Torben; Bonk, Elizabeth; Hefter, Jens (2021): Standard operation procedures and performance of the MICADAS radiocarbon laboratory at Alfred Wegener Institute (AWI), Germany. Nuclear Instruments & Methods in Physics Research Section B-Beam Interactions with Materials and Atoms, 496, 45-51, https://doi.org/10.1016/j.nimb.2021.03.016
Post, David M (2002): Using stable isotopes to estimate trophic position: Models, methods, and assumptions. Ecology, 83(3), 703-718, https://doi.org/10.2307/3071875
Project(s):
NUNATARYUK, Permafrost thaw and the changing Arctic coast, science for socioeconomic adaptation (NUNATARYUK)
Funding:
Horizon 2020 of the European Commission (H2020), grant/award no. 773421: NUNATARYUK, Permafrost thaw and the changing Arctic coast, science for socioeconomic adaptation
Coverage:
Median Latitude: 69.564587 * Median Longitude: -138.952818 * South-bound Latitude: 69.553271 * West-bound Longitude: -139.010000 * North-bound Latitude: 69.569000 * East-bound Longitude: -138.875015
Date/Time Start: 2023-07-12T00:00:00 * Date/Time End: 2023-07-22T00:00:00
Minimum DEPTH, water: 0.3 m * Maximum DEPTH, water: 12.0 m
Event(s):
YC_23_Pia_50m * Latitude: 69.569000 * Longitude: -138.898600 * Location: Canadian Arctic * Campaign: CA-Land_2023_YukonCoast (Yukon Coast 2023) * Basis: AWI Arctic Land Expedition * Method/Device: Water sampler, UWITEC, USB 50050 * Comment: Sampled in 2023-07
YC_23_Pia_100m * Latitude: 69.568600 * Longitude: -138.898000 * Location: Canadian Arctic * Campaign: CA-Land_2023_YukonCoast (Yukon Coast 2023) * Basis: AWI Arctic Land Expedition * Method/Device: Water sampler, UWITEC, USB 50050 * Comment: Sampled in 2023-07
YC_23_Pia_200m * Latitude: 69.567900 * Longitude: -138.896700 * Location: Canadian Arctic * Campaign: CA-Land_2023_YukonCoast (Yukon Coast 2023) * Basis: AWI Arctic Land Expedition * Method/Device: Water sampler, UWITEC, USB 50050 * Comment: Sampled in 2023-07
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
1Event labelEventJuma, Gabriel A
2Laboratory code/labelLab labelJuma, Gabriel AAWI code
3Sample code/labelSample labelJuma, Gabriel A
4CommentCommentJuma, Gabriel A
5DATE/TIMEDate/TimeJuma, Gabriel AGeocode
6LATITUDELatitudeJuma, Gabriel AGeocode
7LONGITUDELongitudeJuma, Gabriel AGeocode
8TransectTransectJuma, Gabriel A
9Station labelStationJuma, Gabriel A
10Depth zoneDepth zoneJuma, Gabriel Awater
11DEPTH, waterDepth watermJuma, Gabriel AGeocode
12Time point, descriptiveTime pointJuma, Gabriel A
13Distance to shoreDist shoremJuma, Gabriel A
14Fraction modern carbonF14CJuma, Gabriel AAccelerator mass spectrometry (AMS), Ionplus, MiCaDaSF14C_m
15Fraction modern carbon, errorF14C e±Juma, Gabriel AAccelerator mass spectrometry (AMS), Ionplus, MiCaDaSerr.F14C_m
16Age, datedAge datedka BPJuma, Gabriel AAccelerator mass spectrometry (AMS), Ionplus, MiCaDaS
17Age, dated, errorAge dated e±Juma, Gabriel AAccelerator mass spectrometry (AMS), Ionplus, MiCaDaS
18Δ14CΔ14C‰Juma, Gabriel AAccelerator mass spectrometry (AMS), Ionplus, MiCaDaS
19Δ14C, errorΔ14C error±Juma, Gabriel AAccelerator mass spectrometry (AMS), Ionplus, MiCaDaS
20δ13Cδ13C‰Juma, Gabriel AOrganic elemental analyzer, Elementar, Vario EL cube; coupled with Isotope ratio mass spectrometer (IRMS), Elementar, isoprime visION
21Carbon, totalTCµmol/lJuma, Gabriel AOrganic elemental analyzer, Elementar, Vario EL cube; coupled with Isotope ratio mass spectrometer (IRMS), Elementar, isoprime visION
22δ15Nδ15N‰Juma, Gabriel AOrganic elemental analyzer, Elementar, Vario EL cube; coupled with Isotope ratio mass spectrometer (IRMS), Elementar, isoprime visION
23Nitrogen, particulatePNµmol/lJuma, Gabriel AOrganic elemental analyzer, Elementar, Vario EL cube; coupled with Isotope ratio mass spectrometer (IRMS), Elementar, isoprime visION
24Carbon/Nitrogen ratioC/NJuma, Gabriel A
25Trophic positionTPJuma, Gabriel ACalculated using one-source Trophic Position modelTP_consumer = TP_baseline +((d15N_consumer-d15Nbaseline)/D15N)
26Carbon poolC poolJuma, Gabriel A
27ZoneZoneJuma, Gabriel A
28Source materialSource matJuma, Gabriel A
29Branched and isoprenoid tetraether indexBITJuma, Gabriel AHigh Performance Liquid Chromatography (HPLC-APCI-MS)
30ReplicateReplJuma, Gabriel A
31FractionFractionJuma, Gabriel AMarkov chain Monte Carlo algorithmMarine source
32Fraction, standard deviationFrac std dev±Juma, Gabriel AMarkov chain Monte Carlo algorithmMarine source
33FractionFractionJuma, Gabriel AMarkov chain Monte Carlo algorithmActive layer
34Fraction, standard deviationFrac std dev±Juma, Gabriel AMarkov chain Monte Carlo algorithmActive layer
35FractionFractionJuma, Gabriel AMarkov chain Monte Carlo algorithmPermafrost
36Fraction, standard deviationFrac std dev±Juma, Gabriel AMarkov chain Monte Carlo algorithmPermafrost
37PercentagePerc%Juma, Gabriel AMarkov chain Monte Carlo algorithmOC Marine
38PercentagePerc%Juma, Gabriel AMarkov chain Monte Carlo algorithmOC Active layer
39PercentagePerc%Juma, Gabriel AMarkov chain Monte Carlo algorithmOC permafrost
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
3736 data points

Download Data

Download dataset as tab-delimited text — use the following character encoding:

View dataset as HTML (shows only first 2000 rows)