Meiofauna abundance from multicorer and box corer samples for seven stations from the Weddell Sea (POLARSTERN cruise PS 96, ANT-XXXI/2, December 2015–February 2016)


This dataset provides abundance data for meiofauna taxa determined from sediment samples collected in the Weddell Sea (mostly South-Eastern). A minimum of three samples (cores) were collected at each station with a MUC10 multicorer or taken from a giant box corer during PS96. Sediment cores were sliced into depth layers (stations 017, 026, 061, 072: 0–2cm, 2–5cm, 5– bottom; stations 001, 037, 048: 0–1cm, 1–2cm, 2–3cm, 3–4cm, 4–5cm, 5– bottom) and preserved in 4%-borax-buffered formaldehyde solution prior to sieving (upper sieve size 500 µm, lower sieve size 32 µm) and counting (detailed methods in Säring et al. submitted). Abundance is presented per depth layer from the top 5 cm (note different slice volume) as ind./10 cm². Meiofauna communities included individuals from 22 higher taxa. The meiofauna abundance data are part of a larger ecological study on meio- and macrofauna communities and their relation to environmental conditions and remineralisation at the sediment-water interface (see “Related to” below). For the larger study, sediment cores from which meiofauna abundance data are deposited here were also used for microcosm incubations: Untreated incubations (Benthic ecosystem Function Experiments BEFEx), and incubations with and without microalgae addition (Algae Feeding Experiment AFEx). Cores from BEFEx and AFEx without algae are labeled with NT (not treated), cores from AFEx with algae are labeled as T (treated).

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Metadata Access
Creator Säring, Friederike ORCID logo; Bruhn, Marco; Weßels, Ann-Kathrin; Bohn, Merten; Veit-Köhler, Gritta
Publisher PANGAEA
Publication Year 2021
Funding Reference Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven Crossref Funder ID AWI_PS96_02 ; Deutsche Forschungsgemeinschaft, Bonn Crossref Funder ID 238058495 Dynamics of benthic ecosystem functioning in response to the disintegration of the ice shelves in the western Weddell Sea; Deutsche Forschungsgemeinschaft, Bonn Crossref Funder ID 365901123 Bedeutung von Meio- und Makrofauna für Ökosystemfunktion: Auswirkungen regional unterschiedlicher Eisbedeckungsmuster; German Research Foundation Crossref Funder ID 5472008 Priority Programme 1158 Antarctic Research with Comparable Investigations in Arctic Sea Ice Areas
Rights Creative Commons Attribution 4.0 International;
OpenAccess true
Resource Type Dataset
Format text/tab-separated-values
Size 3399 data points
Discipline Earth System Research
Spatial Coverage (-42.462W, -76.099S, -11.118E, -70.889N); Weddell Sea
Temporal Coverage Begin 2015-12-24T01:29:00Z
Temporal Coverage End 2016-01-24T00:11:00Z