Not logged in
PANGAEA.
Data Publisher for Earth & Environmental Science

Arnone, Veronica; Santana-Casiano, Juana Magdalena; González, Aridane G (2024): Dissolved copper-binding ligands measured in seawater samples from the POLARSTERN cruise PS94 (GEOTRACES GN04) [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.967014

Always quote citation above when using data! You can download the citation in several formats below.

RIS CitationBibTeX CitationShow MapGoogle Earth

Abstract:
Copper (Cu) is an important micronutrient involved in different phytoplankton metabolic processes. In seawater, Cu speciation is controlled by the formation of organic complexes with natural binding ligands, which controls its bioavailability and toxicity. The information about Cu organic speciation in the ocean is scarce, particularly in the Arctic Ocean where the ongoing climate change is altering the seawater chemistry. This dataset contains measurements of Cu-binding ligands from station depth profiles sampled between from the Norwegian Coast to the Central Arctic Ocean. Samples were collected during GEOTRACES expedition GN04 (Polarstern cruise PS94) between 17 August and 14 October 2015, following GEOTRACES guidelines (https://www.geotraces.org). The Competitive-Ligand Exchange Adsorptive Cathodic Stripping Voltammetry (CLE-ACSV), using Salicylaldoxime (SA) as competitive ligand (Campos and van den Berg, 1994), was the technique applied to determine the Cu-binding ligand concentrations (LCu) and conditional stability constants (logKcu2+L). The concentration of dissolved copper used for the analysis has been reported by Gerringa et al. (2021) (doi:10.1594/PANGAEA.932797).
Keyword(s):
Arctic Ocean; copper; Eurasian Basin; GEOTRACES; GN04; Organic-binding ligands; PS94
Related to:
Arnone, Veronica; Santana-Casiano, Juana Magdalena; González-Dávila, Melchor; Planquette, Hélène; Sarthou, Géraldine; Gerringa, Loes J A; González, Aridane G (2023): Natural copper-binding ligands in the Arctic Ocean. The influence of the Transpolar Drift (GEOTRACES GN04). Frontiers in Marine Science, 10, 1306278, https://doi.org/10.3389/fmars.2023.1306278
Gerringa, Loes J A; Rijkenberg, Micha; Laan, Patrick; Middag, Rob; Rutgers van der Loeff, Michiel M (2021): Dissolved trace metals cadmium (Cd), cobalt (Co), copper (Cu), iron (Fe), manganese (Mn), nickel (Ni), zinc (Zn) measured in samples from the Polarstern cruise PS94 to the Arctic Ocean from August to October 2015 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.932797
References:
Lucia, Melcarne; Campos, A M; van den Berg, Constant M G (1994): Determination of copper complexation in sea water by cathodic stripping voltammetry and ligand competition with salicylaldoxime. Analytica Chimica Acta, 284(3), 481-496, https://doi.org/10.1016/0003-2670(94)85055-0
Funding:
Centre National de la Recherche Scientifique (CNRS), grant/award no. ANR-17-EURE-0015: ISblue
Ministerio de Economía y Competitividad (MEC), grant/award no. CTM2017-83476-P
Spanish Ministry of Science, Innovation and Universities (MICINN), grant/award no. PRE2018-084476
Coverage:
Median Latitude: 84.494613 * Median Longitude: 107.537676 * South-bound Latitude: 70.999300 * West-bound Longitude: 21.192800 * North-bound Latitude: 89.930200 * East-bound Longitude: -116.679800
Date/Time Start: 2015-08-20T01:23:00 * Date/Time End: 2015-10-09T04:27:00
Minimum Elevation: -4826.0 m * Maximum Elevation: -151.5 m
Event(s):
PS94/004-2 * Latitude: 79.253330 * Longitude: 30.046170 * Date/Time: 2015-08-20T01:23:00 * Elevation: -228.2 m * Location: Barents Sea * Campaign: PS94 (ARK-XXIX/3) * Basis: Polarstern * Method/Device: CTD/Rosette, ultra clean (CTD-UC)
PS94/032-4 * Latitude: 81.854000 * Longitude: 30.893330 * Date/Time: 2015-08-22T14:35:00 * Elevation: -3169.0 m * Location: Arctic Ocean * Campaign: PS94 (ARK-XXIX/3) * Basis: Polarstern * Method/Device: CTD/Rosette, ultra clean (CTD-UC)
PS94/050-3 * Latitude: 84.394000 * Longitude: 30.544170 * Date/Time: 2015-08-26T12:21:00 * Elevation: -4055.7 m * Location: Arctic Ocean * Campaign: PS94 (ARK-XXIX/3) * Basis: Polarstern * Method/Device: CTD/Rosette, ultra clean (CTD-UC)
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
1Cruise/expeditionExpeditionArnone, Veronica
2Event labelEventArnone, Veronica
3Station labelStationArnone, Veronica
4LATITUDELatitudeArnone, VeronicaGeocode
5LONGITUDELongitudeArnone, VeronicaGeocode
6DATE/TIMEDate/TimeArnone, VeronicaGeocode
7ELEVATIONElevationm a.s.l.Arnone, VeronicaCTD, Sea-Bird SBE 911plusGeocode – neg. bottom depth
8Bottle numberBottleArnone, Veronica
9DEPTH, waterDepth watermArnone, VeronicaCTD, Sea-Bird SBE 911plusGeocode
10Pressure, waterPressdbarArnone, VeronicaCTD, Sea-Bird SBE 911plus
11Copper-binding ligandCu ligandnmol/lArnone, VeronicaCompetitive-ligand exchange adsorptive cathodic stripping voltammetry (CLE-ACSV)
12Copper-binding ligand, standard deviationCu ligand std dev±Arnone, VeronicaCompetitive-ligand exchange adsorptive cathodic stripping voltammetry (CLE-ACSV)
13Copper-binding ligand, conditional stability constantlog KcondCu2+LArnone, VeronicaCompetitive-ligand exchange adsorptive cathodic stripping voltammetry (CLE-ACSV)
14Copper-binding ligand, conditional stability constant, standard deviationlog KcondCu2+L e±Arnone, VeronicaCompetitive-ligand exchange adsorptive cathodic stripping voltammetry (CLE-ACSV)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
1806 data points

Download Data

Download dataset as tab-delimited text — use the following character encoding:

View dataset as HTML