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Singh, Arvind (2017): Nitrogen fixation and carbon uptake rates during METEOR cruise M97. PANGAEA,, Supplement to: Singh, Arvind; Bach, Lennart Thomas; Fischer, Tim; Hauss, Helena; Kiko, Rainer; Paul, Allanah J; Stange, Paul; Vandromme, Pieter; Riebesell, Ulf (2017): Niche construction by non-diazotrophs for N2 fixers in the eastern tropical North Atlantic Ocean. Geophysical Research Letters, 44(13), 6904-6913,

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Our observations in the ETNA region (8°N–15°N, 19°W–23°W) suggest that Prochlorococcus and Synechococcus, the two ubiquitous non‐diazotrophic cyanobacteria with cellular N:P ratios higher than the Redfield ratio, create an environment of excess phosphate, which cannot be explained by diapycnal mixing, atmospheric, and riverine inputs.
German Science Foundation (DFG), grant/award no. 27542298: Climate - Biogeochemistry Interactions in the Tropical Ocean
Median Latitude: 10.374615 * Median Longitude: -20.986154 * South-bound Latitude: 8.000000 * West-bound Longitude: -22.500000 * North-bound Latitude: 14.500000 * East-bound Longitude: -19.000000
Date/Time Start: 2013-05-29T08:40:00 * Date/Time End: 2013-06-22T07:52:00
Minimum DEPTH, water: m * Maximum DEPTH, water: 75 m
M97_1099-1 (CTD006) * Latitude: 12.000000 * Longitude: -21.000000 * Date/Time: 2013-05-29T08:40:00 * Elevation: -4908.6 m * Campaign: M97 * Basis: Meteor (1986) * Method/Device: CTD/Rosette (CTD-RO)
M97_1114-1 (CTD016) * Latitude: 11.500500 * Longitude: -22.500333 * Date/Time: 2013-05-31T03:00:00 * Elevation: -5072.1 m * Campaign: M97 * Basis: Meteor (1986) * Method/Device: CTD/Rosette (CTD-RO)
M97_1137-1 (CTD037) * Latitude: 11.000167 * Longitude: -21.749833 * Date/Time: 2013-06-02T05:26:00 * Elevation: -5098.8 m * Campaign: M97 * Basis: Meteor (1986) * Method/Device: CTD/Rosette (CTD-RO)
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
1Event labelEventSingh, Arvind
2Sample code/labelSample labelSingh, Arvind
3LATITUDELatitudeSingh, ArvindGeocode
4LONGITUDELongitudeSingh, ArvindGeocode
5DEPTH, waterDepth watermSingh, ArvindGeocode
6Nitrogen fixation rateN2 fixnmol/l/hSingh, Arvindmean
7Nitrogen fixation rate, standard deviationN2 fix std dev±Singh, Arvind
8Carbon uptake rateC upt ratenmol/l/hSingh, Arvindmean
9Carbon uptake rate, standard deviationC upt rate std dev±Singh, Arvind
10δ15Nδ15N‰ airSingh, Arvind
11δ13Cδ13C‰ PDBSingh, Arvind
340 data points

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