Jessen, Gerdhard L; Lichtschlag, Anna; Struck, Ulrich; Boetius, Antje: Biogeochemical measurements of sediments collected at station MSM15/1_492-PUC2 (reference site 1) in the Black Sea during the MSM15/1 cruise in 2010 [dataset]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.858225 (unpublished dataset), In supplement to: Jessen, GL et al. (2016): Distribution and composition of thiotrophic mats in the hypoxic zone of the Black Sea (150-170m water depth, Crimea margin). https://doi.org/10.3389/fmicb.2016.01011
Abstract:
Biogeochemical measurements in sediment cores collected with the submersible JAGO (pusch cores) and a TV-MUC in the Black Sea during MSM15/1, Northwest Crimea (HYPOX Project), at water depths between 152-156 m. A series of microbial mats were sampled on the hypoxic region of the Crimean Shelf. Concentrations of organic carbon (Corg) and nitrogen (N) were measured on finely powdered, freeze-dried subsamples of sediment using a using a Fisons NA-1500 elemental analyzer. For organic carbon determination samples were pre-treated with 12.5% HCl to remove carbonates. Chlorophyll a (chl a), phaeopigments (PHAEO) and chloroplastic pigment equivalents (CPE) was measured according to Schubert et al., (2005) and total hydrolyzable amino acids (THAA) and single amino acid: ASP, GLU, SER, HIS, GLY, THR, ARG, ALA, TYR, MET, VAL, PHE, ILE, LEU, LYS following Dauwe et al., 1998.
Further details:
Dauwe, Birgit; Middelburg, Jack J (1998): Amino acids and hexosamines as indicators of organic matter degradation state in North Sea sediments. Limnology and Oceanography, 43(5), 782-798, https://doi.org/10.4319/lo.1998.43.5.0782
Schubert, Carsten J; Niggemann, Jutta; Klockgether, Gabriele; Ferdelman, Timothy G (2005): Chlorin Index: A new parameter for organic matter freshness in sediments. Geochemistry, Geophysics, Geosystems, 6, Q03005, https://doi.org/10.1029/2004GC000837
Project(s):
Funding:
Seventh Framework Programme (FP7), grant/award no. 226213: In situ monitoring of oxygen depletion in hypoxic ecosystems of coastal and open seas and land-locked water bodies
Coverage:
Latitude: 44.626967 * Longitude: 32.912655
Date/Time Start: 2010-05-04T13:49:53 * Date/Time End: 2010-05-04T13:49:53
Minimum DEPTH, sediment/rock: 0.005 m * Maximum DEPTH, sediment/rock: 0.095 m
Event(s):
MSM15/1_492_PUC2 * Latitude: 44.626967 * Longitude: 32.912655 * Date/Time: 2010-05-04T13:49:53 * Elevation: -152.0 m * Location: Crimea * Campaign: MSM15/1 * Basis: Maria S. Merian * Method/Device: Push corer (PUC) * Comment: taken sample pc 2
Parameter(s):
Size:
104 data points