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


Around the Antarctic Peninsula (North-Western Weddell Sea, Bransfield Strait, Drake Passage) water samples for measurements of chlorophyll-a were collected with Niskin bottles mounted on a CTD rosette. At each station samples were taken at two depths, the chlorophyll-a maximum (Cmax, defined as the water depth with maximum fluorescence detected during in-situ profiles) and close to the seafloor (bottom). Water samples were poured over a 100-µm sieve to remove larger particles and filtered over glass fibre filters GF/C at approximately 250 mbar. Colouring of filters determined the amount of sea water used (3–5l). Filters were stored at −80°C. Chloroplastic pigments were extracted with 10ml acetone (90%), determined using a fluorimeter and expressed in µg/l. For details see Hauquier et al. (2015) and Veit-Köhler et al. (2018).

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Metadata Access
Creator Vanreusel, Ann; Hauquier, Frejia; Beuselinck, Bart; Van Gansbeke, Dirk; Viaene, Niels; 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_PS81_03 ; Belgian Federal Science Policy Office Crossref Funder ID BR/132/A1/VERSO Ecosystem Responses to global change : a multiscale approach in the Southern Ocean (VERSO); German Research Foundation Crossref Funder ID 5472008 Priority Programme 1158 Antarctic Research with Comparable Investigations in Arctic Sea Ice Areas; Research Foundation of Flanders Crossref Funder ID FWO11/ASP/256
Rights Creative Commons Attribution 4.0 International;
OpenAccess true
Resource Type Dataset
Format text/tab-separated-values
Size 228 data points
Discipline Earth System Research
Spatial Coverage (-61.336W, -64.004S, -54.552E, -61.948N); Scotia Sea; Weddell Sea
Temporal Coverage Begin 2013-01-26T09:02:00Z
Temporal Coverage End 2013-03-12T13:46:00Z