Algal pigment concentrations in the ocean during the Arctic MOSAiC-expedition ...

• Main Authors: van Leeuwe, Maria A, Stefels, Jacqueline, Peeken, Ilka, Murawski, Sandra, Bozzato, Deborah, Castellani, Giulia, Eggers, Lena, Fong, Allison A, Hoppe, Clara Jule Marie, Snoeijs-Leijonmalm, Pauline, Webb, Alison L
• Format: Dataset
• Language: English
• Published: PANGAEA 2023
• Subjects: Event label; Sample code/label; Gear; DATE/TIME; LATITUDE; LONGITUDE; DEPTH, water; Chlorophyll c3; Chlorophyll c1+c2; Peridinin; Pheophorbides; 19-Butanoyloxyfucoxanthin; Fucoxanthin; Neoxanthin; 19-Hexanoyloxyfucoxanthin; 19'-Hexanoyloxy-4-ketofucoxanthin; Prasinoxanthin; Violaxanthin; Diadinoxanthin; Dinoxanthin; Alloxanthin; Diatoxanthin; Zeaxanthin; Lutein; Gyroxanthin diester; Chlorophyll b; Echinenone; Chlorophyll a, total; Lycopene; alpha-Carotene; beta-Carotene; Comment; CTD/Rosette; Water pump; High Performance Liquid Chromatography HPLC; PS122/1; PS122/2; PS122/3; PS122/4; PS122/5; Polarstern; Multidisciplinary drifting Observatory for the Study of Arctic Climate MOSAiC; Arctic; Fram Strait; North Pole
• Online Access: https://dx.doi.org/10.1594/pangaea.955763; https://doi.pangaea.de/10.1594/PANGAEA.955763

Algal pigment concentrations were retrieved from ocean samples, during the whole MOSAiC expedition (Multidisciplinary drifting Observatory for the Study of Arctic Climate) in 2019 to 2020. During MOSAiC, RV Polarstern anchored into an ice floe to gain new insights into Arctic climate over a full annual cycle. Ocean data were collected starting with the onset of the study, at 85 degrees north and 137 degrees east, following the drift towards the Fram Strait, and returning to the North Pole in the last leg of the expedition. Ocean samples were collected with a CTD, either from the ship, or from the ice floe in Ocean City (Rabe et al. 2022). Altogether 216 samples have been collected and analysed. After extraction in 90 % acetone, samples were analysed using high-performance liquid chromatography (HPLC) on a Waters system. Algal pigments contain a multiple set of information. Firstly, pigment concentrations can show the presence of algal biomass in the various water masses sampled. Secondly, marker pigments can ...