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Sommer, Stefan; Domeyer, Bettina; Surberg, Regina (2022): Nutrients measured from water bottle samples during METEOR cruise M156 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.950358, In: Devresse, Quentin; Becker, Kevin W; Engel, Anja (2022): Microbial activity measured from water bottle samples in a cyclonic eddy during METEOR cruise M156, off Mauritania [dataset bundled publication]. PANGAEA, https://doi.org/10.1594/PANGAEA.950510

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Abstract:
This dataset includes measured and calculated data over the epipelagic layer (0-200 m depth) of 25 stations with 14 of them inside or in the vicinity of a cyclonic eddy that formed off Mauritania along the ∼ 900 km zonal corridor between Mauritania and the Cabo Verde islands in the eastern Tropical North Atlantic during the M156 cruise on the RV Meteor from July 3rd to August 1st 2019. Seawater samples were collected using 10 L Niskin bottles attached to the CTD Rosette. Ammonium was analysed based on Solórzano (1969, https://doi.org/10.4319/lo.1969.14.5.0799) and nitrate, nitrite, phosphate and silicate were measured photometrically with continuous-flow analysis on an auto-analyser based on Hansen and Koroleff, (1999, https://doi.org/10.1002/9783527613984.ch10).
Keyword(s):
bacteria growth efficiency; bacterial production; bacterial respiration; cyclonic eddy; Phytoplankton; primary production
Funding:
Federal Ministry of Education and Research (BMBF), grant/award no. 03F0815A: Küstennahe Auftriebsgebiete REEBUS: Physikalisch-biogeochemische sowie pelagisch-benthische Kopplung in Wirbeln vor Westafrika
Coverage:
Median Latitude: 18.278841 * Median Longitude: -19.361949 * South-bound Latitude: 17.999540 * West-bound Longitude: -24.333700 * North-bound Latitude: 18.582290 * East-bound Longitude: -16.516260
Date/Time Start: 2019-07-04T03:19:56 * Date/Time End: 2019-07-29T01:17:00
Minimum DEPTH, water: m * Maximum DEPTH, water: 200 m
Event(s):
M156_1-1 * Latitude: 18.000100 * Longitude: -24.333500 * Date/Time: 2019-07-04T04:44:00 * Elevation: -3694.0 m * Location: North Atlantic Ocean * Campaign: M156 * Basis: Meteor (1986) * Method/Device: CTD/Rosette (CTD-RO)
M156_7-1 * Latitude: 18.000050 * Longitude: -23.608570 * Date/Time: 2019-07-05T06:25:00 * Elevation: -3632.0 m * Location: North Atlantic Ocean * Campaign: M156 * Basis: Meteor (1986) * Method/Device: CTD/Rosette (CTD-RO)
M156_21-1 * Latitude: 17.999930 * Longitude: -22.783350 * Date/Time: 2019-07-08T05:26:00 * Elevation: -3432.0 m * Location: North Atlantic Ocean * Campaign: M156 * Basis: Meteor (1986) * Method/Device: CTD/Rosette (CTD-RO)
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
1Event labelEventDevresse, Quentin
2Station labelStationDevresse, Quentin
3Profile IDProfile IDDevresse, QuentinCTD
4DATE/TIMEDate/TimeDevresse, QuentinGeocode
5LATITUDELatitudeDevresse, QuentinGeocode
6LONGITUDELongitudeDevresse, QuentinGeocode
7DEPTH, waterDepth watermDevresse, QuentinGeocode
8Nitrogen, inorganic, dissolvedDINµmol/lDevresse, QuentinCalculatedsum of NO3- NO2- and NH4+
9Nitrate[NO3]-µmol/lDevresse, Quentinmeasured photometrically with a Continuous Flow Analyzer (CFA)detection limit: 0.1 µmol/l
10Nitrite[NO2]-µmol/lDevresse, Quentinmeasured photometrically with a Continuous Flow Analyzer (CFA)detection limit: 0.02 µmol/l
11Phosphate[PO4]3-µmol/lDevresse, Quentinmeasured photometrically with a Continuous Flow Analyzer (CFA)detection limit: 0.02 µmol/l
12SilicateSi(OH)4µmol/lDevresse, Quentinmeasured photometrically with a Continuous Flow Analyzer (CFA)detection limit: 0.2 µmol/l
13Ammonium[NH4]+µmol/lDevresse, QuentinPhenolhypochloride (Solorzano, 1969)detection limit: 0.1 µmol/l
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
1102 data points

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