Abiotic and biotic sediment characteristics for stations from the North-Western Weddell Sea, Bransfield Strait, and Drake Passage (POLARSTERN cruise PS 81, ANT-XXIX/3, January-March 2013)

• Main Authors: Vanreusel, Ann, Hauquier, Frejia, Beuselinck, Bart, Van Gansbeke, Dirk, Viaene, Niels, Veit-Köhler, Gritta
• Format: Dataset
• Language: English
• Published: PANGAEA 2021
• Subjects: Antarctic; ANT-XXIX/3; Carbon; organic; total; Chlorophyll a per unit sediment mass; Cruise/expedition; Date/Time of event; Depth; bottom/max; sediment/rock; top/min; DP-243; DP-250; Elevation of event; Event label; Fluorometry; Giant box corer; GKG; Grain Size; Laser diffraction particle size analyser (Malvern Mastersizer 2000); Longitude of event; MUC; MUC/GKG; MultiCorer; Nitrogen; Organic Elemental Analyzer; Thermo Fisher Scientific; Flash 2000; organic matter; Phaeophytin per unit sediment mass; Phorbide per unit sediment mass; pigments; Polarstern; Priority Programme 1158 Antarctic Research with Comparable Investigations in Arctic Sea Ice Areas; PS81; PS81/118-10; PS81/118-9; PS81/120-5; PS81/120-6; PS81/120-7; PS81/162-3; PS81/162-4; PS81/162-5; PS81/163-4; PS81/163-5; PS81/163-6; Arctic; The Antarctic; Antarctic Peninsula; Weddell Sea; Drake Passage; Bransfield Strait; Weddell; Antarc*; Berichte zur Polar- und Meeresforschung; Reports on Polar and Marine Research; Sea ice
• Online Access: https://doi.pangaea.de/10.1594/PANGAEA.932856; https://doi.org/10.1594/PANGAEA.932856

Around the Antarctic Peninsula (North-Western Weddell Sea, Bransfield Strait, Drake Passage) sediment samples were collected with a MUC6 multicorer. Cores were subsampled for environmental parameters with cut-off 10-ml syringes. Subsamples for determination of grain size, total organic carbon (TOC) and total nitrogen (TN) were stored at −20°C. Samples for pigment analyses were stored at −80°C. Subsamples were sliced in 1-cm slices (0–1 cm, 1–2 cm, 2–3 cm, 3–4 cm, 4–5 cm). Sediment grain sizes were determined with a Malvern Mastersizer 2000 and expressed as relative percentages of the different size fractions. Total organic carbon (TOC) and total nitrogen (TN) were determined from freeze-dried samples by elemental analysis. Prior to combustion samples used for TOC analyses were acidified with 2% HCl in order to remove inorganic carbon. Pigments were extracted with 10 ml acetone (90%) from lyophilised sediment, separated by HPLC (High Performance Liquid Chromatography) and determined with a fluorescence detector: Chlorophyll-a, phaeophytin and phorbide are expressed in µg/g. For details see Hauquier et al. (2015) and Veit-Köhler et al. (2018).