/* DATA DESCRIPTION: Citation: Sichert, Andreas; Vidal-Melgosa, Silvia; Hehemann, Jan-Hendrik (2020): Monosaccharide composition in HMWDOM during a microalgae bloom period in the North Sea. PANGAEA, https://doi.org/10.1594/PANGAEA.924264, In: Vidal-Melgosa, Silvia; Sichert, Andreas; Hehemann, Jan-Hendrik (2020): Polysaccharides present in HMWDOM and POM during a microalgae bloom period in the North Sea. PANGAEA, https://doi.org/10.1594/PANGAEA.924288 Abstract: We analysed the monosaccharide composition in high molecular weight dissolved organic matter (HMWDOM) during a three month diatom bloom period in the North Sea (54˚11.3'N, 7˚54.0'E). HMWDOM samples were concentrated by tangential flow filtration (TFF). These were hydrolysed with acid into monomers and quantified by high performance anion exchange chromatography with pulsed amperometric detection (HPAEC-PAD). Details describing the data: A total of 19 samples were analysed including two technical replicates. Each sample corresponds to 100 L of 0.2 μm-filtered seawater that were concentrated to a final volume of 0.5 L by TFF with 1 kDa cassettes. Therefore samples contain the size fraction between 0.2 µm and 1 kDa. The TFF-concentrated HMWDOM samples were analysed and data show their monosaccharide composition as mean relative abundance (in molarity). Keyword(s): Carbohydrates; Diatom blooms; Diatoms; HMWDOM; Microalgae; Monosaccharide composition; Monosaccharides; North Sea Related to: Vidal-Melgosa, Silvia; Sichert, Andreas; Francis, T Ben; Bartosik, Daniel; Niggemann, Jutta; Wichels, Antje; Willats, William G T; Fuchs, Bernhard M; Teeling, Hanno; Becher, Dörte; Schweder, Thomas; Amann, Rudolf; Hehemann, Jan-Hendrik (2021): Diatom fucan polysaccharide precipitates carbon during algal blooms. Nature Communications, 12(1), https://doi.org/10.1038/s41467-021-21009-6 Coverage: LATITUDE: 54.188330 * LONGITUDE: 7.900000 DATE/TIME START: 2016-03-17T00:00:00 * DATE/TIME END: 2016-05-26T00:00:00 MINIMUM ELEVATION: -10.0 m * MAXIMUM ELEVATION: -10.0 m Event(s): HelgolandRoads_site (Kabeltonne) * LATITUDE: 54.188330 * LONGITUDE: 7.900000 * ELEVATION: -10.0 m * DEIMS ID: https://deims.org/1e96ef9b-0915-4661-849f-b3a72f5aa9b1 * LOCATION: German Bight, North Sea * COMMENT: Samples and Measurements were taken at HelgolandRoads site but independently of Helgoland Roads LTER project Parameter(s): Fraction, description (Fraction desc) * PI: Sichert, Andreas (https://orcid.org/0000-0002-1386-5535) DATE/TIME (Date/Time) * GEOCODE * PI: Sichert, Andreas (https://orcid.org/0000-0002-1386-5535) Fucose, relative abundance (Fuc) * PI: Sichert, Andreas (https://orcid.org/0000-0002-1386-5535) Rhamnose, relative abundance (Rha) * PI: Sichert, Andreas (https://orcid.org/0000-0002-1386-5535) Galactosamine, relative abundance (GalN) * PI: Sichert, Andreas (https://orcid.org/0000-0002-1386-5535) Arabinose, relative abundance (Ara) * PI: Sichert, Andreas (https://orcid.org/0000-0002-1386-5535) Glucosamine, relative abundance (GlcN) * PI: Sichert, Andreas (https://orcid.org/0000-0002-1386-5535) Galactose, relative abundance (Gal) * PI: Sichert, Andreas (https://orcid.org/0000-0002-1386-5535) Glucose, relative abundance (Glc) * PI: Sichert, Andreas (https://orcid.org/0000-0002-1386-5535) Mannose, relative abundance (Man) * PI: Sichert, Andreas (https://orcid.org/0000-0002-1386-5535) Xylose, relative abundance (Xyl) * PI: Sichert, Andreas (https://orcid.org/0000-0002-1386-5535) Muramic acid, relative abundance (Mur) * PI: Sichert, Andreas (https://orcid.org/0000-0002-1386-5535) Galacturonic acid, relative abundance (GalA) * PI: Sichert, Andreas (https://orcid.org/0000-0002-1386-5535) Glucuronic acid, relative abundance (GlcA) * PI: Sichert, Andreas (https://orcid.org/0000-0002-1386-5535) Mannuronic acid, relative abundance (ManA) * PI: Sichert, Andreas (https://orcid.org/0000-0002-1386-5535) License: Creative Commons Attribution 4.0 International (CC-BY-4.0) (URI: https://creativecommons.org/licenses/by/4.0/) Size: 266 data points */ Fraction desc Date/Time Fuc Rha GalN Ara GlcN Gal Glc Man Xyl Mur GalA GlcA ManA TFF-concentrated HMWDOM 2016-03-17 21.96350 0.75086 0 0.00000 17.09992 14.46432 21.59745 12.61682 6.29607 0 1.223858226 3.178691976 0.808518119 TFF-concentrated HMWDOM 2016-03-22 21.16112 0.70085 0 0.00000 18.65314 15.29171 16.53346 14.82942 7.63147 0 1.353908976 3.154892575 0.690024815 TFF-concentrated HMWDOM 2016-03-24 20.06713 0.71981 0 0.00000 20.22987 15.81807 14.82231 14.82429 7.01265 0 1.565719920 4.096313584 0.843837245 TFF-concentrated HMWDOM 2016-03-29 31.69545 0.77076 0 0.00000 17.41831 15.42052 10.70726 11.37051 6.64208 0 1.017782801 4.185731846 0.771601791 TFF-concentrated HMWDOM 2016-03-31 24.08741 0.63522 0 0.00000 17.95426 14.53076 17.74463 11.04109 7.41998 0 1.292084178 4.543379991 0.751192829 TFF-concentrated HMWDOM 2016-04-05 24.26205 0.78745 0 0.00000 18.01425 18.16668 11.25629 13.31610 7.49837 0 1.397255025 4.567184127 0.734373258 TFF-concentrated HMWDOM 2016-04-07 18.90441 0.65404 0 0.00000 21.21296 16.31553 18.05660 14.41728 5.27403 0 1.194974239 3.420432243 0.549751238 TFF-concentrated HMWDOM 2016-04-12 17.94794 0.64099 0 0.00000 15.37338 14.47924 29.95404 11.35088 5.07763 0 1.118702879 3.192500929 0.864704207 TFF-concentrated HMWDOM 2016-04-14 21.93064 0.86198 0 0.00000 15.31500 19.36852 14.33426 14.79458 6.91712 0 1.150345491 4.543107923 0.784454603 TFF-concentrated HMWDOM 2016-04-19 21.27224 1.23751 0 0.94096 13.81574 20.53206 14.25476 13.99794 7.11921 0 1.299503700 4.787613672 0.742466692 TFF-concentrated HMWDOM 2016-04-21 19.74318 1.67399 0 0.76860 14.35593 21.41874 12.73833 12.95159 9.11410 0 1.289576643 5.292889704 0.653073577 TFF-concentrated HMWDOM 2016-04-26 18.04979 1.39798 0 1.61044 13.61210 22.14086 11.26325 14.42892 9.41271 0 1.444035278 5.984227220 0.655696234 TFF-concentrated HMWDOM 2016-04-28 15.44624 0.98170 0 0.44118 16.18692 26.00162 14.85375 14.24123 6.73866 0 0.715238637 3.908382195 0.485081262 TFF-concentrated HMWDOM 2016-05-10 13.86683 1.09139 0 3.15749 8.66486 19.64303 23.39606 16.41865 7.55757 0 0.926183869 4.698819381 0.579105274 TFF-concentrated HMWDOM 2016-05-12 14.59832 0.74893 0 3.86548 10.39090 24.96352 10.36115 17.40286 9.80631 0 1.316282850 5.891034395 0.655206450 TFF-concentrated HMWDOM 2016-05-17 13.87889 0.60679 0 3.47898 8.34937 21.87072 17.28098 16.22255 10.53854 0 1.229491077 5.928331532 0.615366217 TFF-concentrated HMWDOM 2016-05-19 15.36465 0.55655 0 4.08433 8.07508 23.07598 11.32767 18.20484 10.26345 0 1.451632887 6.891056573 0.704755652 TFF-concentrated HMWDOM 2016-05-24 15.66375 1.02564 0 6.92541 7.31649 23.77580 11.35193 17.45194 10.22107 0 0.805779195 4.888427009 0.573782654 TFF-concentrated HMWDOM 2016-05-26 14.40452 0.89388 0 8.32730 7.03615 22.52314 11.93019 15.88077 11.96590 0 1.036818691 5.260413995 0.740915737