Sediment characteristics (Chla, Phaeo, TOC, TN, δ13C, δ15N, grain size) at four stations in the Weddell Sea (POLARSTERN cruise PS118, February - April 2019)

DOI

This dataset contains abiotic and biotic data from sediment samples from four sites in the northwestern Weddell Sea. Data are provided for sediment pigments (chlorophyll a and phaeopigment content through fluorometry), total organic carbon (TOC), total nitrogen (TN), stable isotope values of carbon and nitrogen (δ13C, δ15N) and grain size (silt&clay 1000 µm). A minimum of three replicate samples (cores) were collected using a MUC10 multicorer. All sediment cores were subsampled with a 10-ml syringe (inner diameter 1 cm). Subsamples were sliced in 1-cm steps down to 5 cm depth. The same sampling and measurements as for PS 96 were carried out (see below "Related to". Prior to TOC and δ13C analysis sediment samples were acidified to eliminate inorganic carbon. Detailed methods are described in Säring et al. (2022), except for stable isotopes: Flash combustion in a Flash 2000 (Thermo) elemental analyser to a Delta V advantage (Thermo) isotope ratio masspectrometer. δ values are reported relative to atmospheric N2 (δ15N) and Vienna PeeDee Belemnite (δ13C). Reference materials for stable isotope analysis: IAEA-N1, IAEA-N2, IAEA-N3, NBS 22, IAEA-CH-3 and IAEA-CH-6; calibration material: Acetanilide (Merck). The analytical precision for both stable isotope ratios was <±0.2‰. Cores with the label -e (Environment) were only used to collect the above data. Environmental, fauna and benthic boundary flux data were collected from cores with the label -i (Incubation). This data table is part of studies analyzing the role of environmental parameters for meio- and macrofaunal community compositions and polychaete community distribution patterns (see "Supplement to", "Related to" and "Further details" below).

Identifier
DOI https://doi.org/10.1594/PANGAEA.960326
Related Identifier https://doi.org/10.2312/BzPM_0735_2019
Related Identifier https://doi.org/10.5852/ejt.2022.789.1637
Related Identifier https://doi.org/10.1594/PANGAEA.932718
Related Identifier https://doi.org/10.3354/meps14188
Related Identifier https://doi.org/10.1594/PANGAEA.932856
Related Identifier https://doi.pangaea.de/10.1594/PANGAEA.960304
Related Identifier https://doi.pangaea.de/10.1594/PANGAEA.960309
Metadata Access https://ws.pangaea.de/oai/provider?verb=GetRecord&metadataPrefix=datacite4&identifier=oai:pangaea.de:doi:10.1594/PANGAEA.960326
Provenance
Creator Weith, Friederike ORCID logo; Veit-Köhler, Gritta; Behrend, Ben; Witte, Ursula; Liskow, Iris; Link, Heike (ORCID: 0000-0002-8484-845X)
Publisher PANGAEA
Publication Year 2023
Funding Reference German Research Foundation https://doi.org/10.13039/501100001659 Crossref Funder ID 5472008 https://gepris.dfg.de/gepris/projekt/5472008 Priority Programme 1158 Antarctic Research with Comparable Investigations in Arctic Sea Ice Areas
Rights Data access is restricted (moratorium, sensitive data, license constraints)
OpenAccess false
Representation
Resource Type Dataset
Format text/tab-separated-values
Size 2119 data points
Discipline Earth System Research
Spatial Coverage (-57.779W, -64.979S, -54.325E, -63.075N); Weddell Sea
Temporal Coverage Begin 2019-03-05T13:26:00Z
Temporal Coverage End 2019-03-22T13:43:00Z