Pigment concentrations from three stations at Potter Cove, King George Island, West Antarctic Peninsula ...

• Main Authors: Pasotti, Francesca, Manini, Elena, Giovannelli, Donato, Wölfl, Anne-Cathrin, Monien, Donata, Verleyen, Elie, Braeckman, Ulrike, Vanreusel, Ann, Abele, Doris
• Format: Dataset
• Language: English
• Published: PANGAEA 2013
• Subjects: Event label; Latitude of event; Longitude of event; DEPTH, sediment/rock; Depth, top/min; Depth, bottom/max; Sample code/label; Chlorophyll a per unit sediment mass; Phaeopigments per unit sediment mass; Chloroplastic pigment equivalents; Sampling by diver; Jubany_Dallmann; Carlini/Jubany Station; Impact of climate induced glacier melt on marine coastal systems, Antarctica IMCOAST/IMCONet; Antarctic; Antarctic Peninsula; King George Island; Potter Cove; Antarc*; Antarctica
• Online Access: https://dx.doi.org/10.1594/pangaea.815192; https://doi.pangaea.de/10.1594/PANGAEA.815192

Samples analyzed by Donato Giovannelli (mailto:[e-mail]) and Manini Elena (mailto:[e-mail]). For the pigment analysis sediment cores were sliced at 0-1, 1-3 and 3-5 cm layers. The analysis of chlorophyll-a (Chl-a) and phaeopigments was carried out according to Lorenzen (1980, doi:10.4319/lo.1967.12.2.0343). Pigments were extracted (12 h at 4 °C in the dark) from each layer using 5 ml of 90% acetone. Extracts were analysed fluorometrically to estimate the chlorophyll-a and phaeopigment concentration, after acidification with 200 ml 0.1N HCl. The concentrations of Chl-a and phaeopigments (expressed in µg/g of dry sediment) were summed to obtain the total chlorophyll concentration (Chloroplastic Pigments Equivalent, CPE). ...