Citation:

PANGAEA.962553

Name: Biological nitrogen fixation and stable isotopes of carbon in seston during Meteor cruise M130
Published: 2023-09-27
License: https://creativecommons.org/licenses/by/4.0/
Keywords: biological nitrogen fixation; diazotrophs; Equatorial Atlantic; Guinea Dome

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

RIS Citation BibTeX Citation Text Citation Facebook TwitterShow Map Google Earth

Abstract:

Biological nitrogen fixation is a key process balancing the loss of combined nitrogen in the marine nitrogen cycle. Its relevance in upwelling systems is not fully resolved. This dataset contains rates of nitrogen fixation through the euphotic layer in two size fractions measured following Montoya et al (1996) technique. It also contains the stable isotopes of carbon in seston expressed in delta notation (δ13C, ‰, VPDB). We sampled in the region of the Guinea Dome and Equatorial Atlantic Ocean along 23°W during Meteor cruise M130 in August-September 2016. Water samples were collected by niskin bottles attached to a rosette equipped with CTD sensors. Incubations were done in on-deck incubators refrigerated by running surface water continuously and simulating the light intensity of each depth by neutral density filters or meshes.

Keyword(s):

biological nitrogen fixation; diazotrophs; Equatorial Atlantic; Guinea Dome

Supplement to:

Fernández-Carrera, Ana; Kiko, Rainer; Hauss, Helena; Hamilton, Douglas S; Achterberg, Eric Pieter; Montoya, Joseph P; Dengler, Marcus; Brandt, Peter; Subramaniam, Ajit (2023): Nitrogen fixation rates in the Guinea Dome and the equatorial upwelling regions in the Atlantic Ocean. Biogeochemistry, https://doi.org/10.1007/s10533-023-01089-w

Related to:

Dengler, Marcus; Krahmann, Gerd (2019): Physical oceanography (CTD) during METEOR cruise M130 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.904367

References:

Montoya, Joseph P; Voss, Maren; Kähler, Paul; Capone, D G (1996): A Simple, High-Precision, High-Sensitivity Tracer Assay for N2 Fixation. Applied and Environmental Microbiology, 62(3), 986-993, https://doi.org/10.1128/aem.62.3.986-993.1996

Funding:

Gordon and Betty Moore Foundation, grant/award no. GBMF4886: Nitrogen Fixation in the Equatorial Atlantic Upwelling System

Xunta de Galicia, grant/award no. POS-A/2013/142: Xunta de Galicia 2013 postdoctoral fellowship

Coverage:

Median Latitude: 6.407904 * Median Longitude: -22.381609 * South-bound Latitude: -5.000000 * West-bound Longitude: -24.213830 * North-bound Latitude: 17.702830 * East-bound Longitude: -18.997500

Date/Time Start: 2016-08-30T19:20:00 * Date/Time End: 2016-09-19T01:51:00

Minimum Elevation: -5860.0 m * Maximum Elevation: -2042.3 m

Event(s):

M130_941-1 * Latitude: 17.702833 * Longitude: -24.213833 * Date/Time: 2016-08-30T19:20:00 * Elevation: -3598.5 m * Campaign: * Basis: * Method/Device: (CTD-RO)

M130_949-1 * Latitude: 15.000333 * Longitude: -22.999667 * Date/Time: 2016-09-02T10:19:00 * Elevation: -2712.3 m * Campaign: * Basis: * Method/Device: (CTD-RO)

M130_952-1 * Latitude: 14.499667 * Longitude: -22.999833 * Date/Time: 2016-09-02T15:55:00 * Elevation: -4091.4 m * Campaign: * Basis: * Method/Device: (CTD-RO)

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Method/Device	Comment
1	Event label	Event		Subramaniam, Ajit
2	Gear	Gear		Subramaniam, Ajit
3	Abbreviation	Abbrev		Subramaniam, Ajit
4	DATE/TIME	Date/Time		Subramaniam, Ajit		Geocode
5	LATITUDE	Latitude		Subramaniam, Ajit		Geocode
6	LONGITUDE	Longitude		Subramaniam, Ajit		Geocode
7	ELEVATION	Elevation	m a.s.l.	Subramaniam, Ajit		Geocode
8	Location	Location		Subramaniam, Ajit
9	DEPTH, water	Depth water	m	Subramaniam, Ajit	CTD, Sea-Bird, SBE 11 plus	Geocode
10	Temperature, water	Temp	°C	Subramaniam, Ajit	CTD, Sea-Bird, SBE 11 plus	data from Dengler and Krahmann (2019)
11	Salinity	Sal		Subramaniam, Ajit	CTD, Sea-Bird, SBE 11 plus	water, PSU (data from Dengler and Krahmann 2019)
12	δ13C, seston	δ13C sest	‰ PDB	Subramaniam, Ajit	Continuous flow isotope ratio mass spectrometer (CF-IRMS), Micromass, Isoprime; coupled with Elemental analyser, Carlo Erba, NA 2500	VPDB
13	Trichodesmium, carbon in seston	Trichodesmium C sest	%	Subramaniam, Ajit	Calculated according to Fry (2006)	Percent contribution of Trichodesmium to C in seston derived by two-end-member mixing model. End members δ13C Tricho = -12.9‰, δ13C Phytoplankton = -22‰
14	Nitrogen	N	%	Subramaniam, Ajit	Continuous flow isotope ratio mass spectrometer (CF-IRMS), Micromass, Isoprime; coupled with Elemental analyser, Carlo Erba, NA 2500	atom%N at the beginning of incubation, natural abundance (time 0)
15	Sample volume	Samp vol	ml	Subramaniam, Ajit		V incubated
16	Nitrogen, 15N labeled	15N2	ml	Subramaniam, Ajit		added: Cambridge Isotopes98 atom%, Cambridge Isotopes Lot. #I-19168A
17	Incubation duration	Inc dur	h	Subramaniam, Ajit
18	Nitrogen, particulate, size fraction <10 µm	PN <10 µm	µmol/l	Subramaniam, Ajit	Continuous flow isotope ratio mass spectrometer (CF-IRMS), Micromass, Isoprime; coupled with Elemental analyser, Carlo Erba, NA 2500	Small T24, avg: Average of Particulate Nitrogen in the <10µm size fraction at the end of incubation (time 24)
19	Nitrogen, particulate, size fraction <10 µm, standard deviation	PN <10 µm std dev	±	Subramaniam, Ajit	Continuous flow isotope ratio mass spectrometer (CF-IRMS), Micromass, Isoprime; coupled with Elemental analyser, Carlo Erba, NA 2500	Small T24 SD: Standard Deviation of Particulate Nitrogen in the <10µm size fraction at the end of incubation (time 24)
20	Nitrogen, particulate, size fraction > 10 µm	PN >10 µm	µmol/l	Subramaniam, Ajit	Continuous flow isotope ratio mass spectrometer (CF-IRMS), Micromass, Isoprime; coupled with Elemental analyser, Carlo Erba, NA 2500	Large T24, avg: Average of Particulate Nitrogen in the >10µm size fraction at the end of incubation (time 24)
21	Nitrogen, particulate, size fraction > 10 µm, standard deviation	PN >10 µm std dev	±	Subramaniam, Ajit	Continuous flow isotope ratio mass spectrometer (CF-IRMS), Micromass, Isoprime; coupled with Elemental analyser, Carlo Erba, NA 2500	Large T24 SD: Standard Deviation of Particulate Nitrogen in the >10µm size fraction at the end of incubation (time 24)
22	Nitrogen fixation rate, size fraction < 10 µm	N2 fix <10 µm	nmol/l/day	Subramaniam, Ajit	Calculated according to Montoya et al. (1996)	BNF small, avg: Average of Biological Nitrogen Fixation (BNF) of the <10µm size fraction. Detection limit 0.05 nmol N L-1 d-1
23	Nitrogen fixation rate, size fraction < 10 µm, standard deviation	N2 fix <10 µm std dev	±	Subramaniam, Ajit	Calculated according to Montoya et al. (1996)	BNF small SD: Standard Deviation of Biological Nitrogen Fixation (BNF) of the <10µm size fraction. Detection limit 0.05 nmol N L-1 d-1
24	Nitrogen fixation rate, size fraction > 10 µm	N2 fix >10 µm	nmol/l/day	Subramaniam, Ajit	Calculated according to Montoya et al. (1996)	BNF large, avg: Average of Biological Nitrogen Fixation (BNF) of the >10µm size fraction. Detection limit 0.05 nmol N L-1 d-1
25	Nitrogen fixation rate, size fraction > 10 µm, standard deviation	N2 fix >10 µm std dev	±	Subramaniam, Ajit	Calculated according to Montoya et al. (1996)	BNF large SD: Standard Deviation of Biological Nitrogen Fixation (BNF) of the >10µm size fraction. Detection limit 0.05 nmol N L-1 d-1
26	Nitrogen fixation rate, total	N2 fix total	nmol/l/day	Subramaniam, Ajit	Calculated according to Montoya et al. (1996)	BNF total, avg: Standard Deviation of Biological Nitrogen Fixation (BNF) of the sum of both size fractions. Detection limit 0.05 nmol N L-1 d-1
27	Nitrogen fixation rate, total, standard deviation	N2 fix total std dev	±	Subramaniam, Ajit	Calculated according to Montoya et al. (1996)	BNF total SD: Average of Biological Nitrogen Fixation (BNF) of the sum of both size fractions. Detection limit 0.05 nmol N L-1 d-1

License:

Creative Commons Attribution 4.0 International (CC-BY-4.0)

Status:

Curation Level: Enhanced curation (CurationLevelC)

Size:

1101 data points

Data

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

1 Event	2 Gear	3 Abbrev	4 Date/Time	5 Latitude	6 Longitude	7 Elevation [m a.s.l.]	8 Location	9 Depth water [m]	10 Temp [°C]	11 Sal	12 δ13C sest [‰ PDB]	13 Trichodesmium C sest [%]	14 N [%]	15 Samp vol [ml]	16 15N2 [ml]	17 Inc dur [h]	18 PN <10 µm [µmol/l]	19 PN <10 µm std dev [±]	20 PN >10 µm [µmol/l]	21 PN >10 µm std dev [±]	22 N2 fix <10 µm [nmol/l/day]	23 N2 fix <10 µm std dev [±]	24 N2 fix >10 µm [nmol/l/day]	25 N2 fix >10 µm std dev [±]	26 N2 fix total [nmol/l/day]	27 N2 fix total std dev [±]
M130_941-1	CTD/Rosette	CTD-RO	2016-08-30T19:20	17.70283	-24.21383	-3598	Eastern Tropical Atlantic Ocean	8.9	8.9	26.6	-23.2	0.0	0.3662	4543	3.0	24.1	0.30	0.04			0.48	0.05	0.00	0.00	0.48	0.05
M130_949-1	CTD/Rosette	CTD-RO	2016-09-02T10:19	15.00033	-22.99967	-2712	Eastern Tropical Atlantic Ocean	9.1	27.8	36.3	-22.0	0.5	0.3663	4543	3.0	24.3	0.37	0.03	0.11		0.74	0.11	0.32		1.06	0.11
M130_952-1	CTD/Rosette	CTD-RO	2016-09-02T15:55	14.49967	-22.99983	-4091	Eastern Tropical Atlantic Ocean	9.7	27.2	36.3	-21.2	9.1	0.3650	4543	3.0	24.0	0.43	0.05			11.90	3.34	0.00	0.00	11.90	3.34
M130_955-1	CTD/Rosette	CTD-RO	2016-09-02T21:09	14.00017	-23.00000	-4323	Eastern Tropical Atlantic Ocean	9.3	28.2	36.3	-21.3	7.9	0.3649	4543	3.0	24.0	0.54	0.15	0.21	0.03	8.99	2.43	15.31	7.52	24.30	9.94
M130_957-1	CTD/Rosette	CTD-RO	2016-09-03T01:59	13.50033	-23.00017	-4539	Eastern Tropical Atlantic Ocean	9.8	28.1	36.3	-20.8	13.0	0.3650	4543	3.0	24.0	0.56	0.13	0.15	0.03	16.89	1.51	13.81	2.22	30.70	3.73
M130_959-1	CTD/Rosette	CTD-RO	2016-09-03T07:01	13.00317	-22.99967	-4742	Eastern Tropical Atlantic Ocean	12.1	28.2	36.0	-21.6	4.8	0.3662	4543	3.0	24.0	0.45	0.06			1.28	0.15	0.00	0.00	1.28	0.15
M130_962-1	CTD/Rosette	CTD-RO	2016-09-03T13:01	12.50067	-22.99967	-4921	Eastern Tropical Atlantic Ocean	9.3	27.5	36.1	-21.1	9.8	0.3657	4543	3.0	24.0	0.37	0.03			1.04	0.06	0.00	0.00	1.04	0.06
M130_966-1	CTD/Rosette	CTD-RO	2016-09-03T18:31	11.99700	-22.99683	-5044	Eastern Tropical Atlantic Ocean	9.5	28.3	35.9	-22.8	0.0	0.3639	4543	3.0	24.0	0.50	0.02			1.27	0.16	0.00	0.00	1.27	0.16
M130_969-1	CTD/Rosette	CTD-RO	2016-09-03T23:58	11.46450	-22.98883	-5514	Eastern Tropical Atlantic Ocean	9.5	28.3	35.9	-21.8	1.7	0.3667	4543	3.0	23.0	0.57	0.12	0.22		0.89	0.22	0.28	0.04	1.17	0.26
M130_972-1	CTD/Rosette	CTD-RO	2016-09-04T05:04	11.00017	-23.00183	-5155	Eastern Tropical Atlantic Ocean	9.1	28.2	35.9	-21.3	7.5	0.3660	4543	3.0	24.0	0.46	0.05			3.48	0.99	0.00	0.00	3.48	0.99
M130_974-1	CTD/Rosette	CTD-RO	2016-09-04T09:56	10.49883	-22.99900	-5192	Eastern Tropical Atlantic Ocean	8.8	28.0	35.7	-20.5	16.2	0.3651	4543	3.0	24.0	0.48	0.08	0.25	0.02	5.78	2.48	15.99	7.16	21.77	9.63
M130_976-1	CTD/Rosette	CTD-RO	2016-09-04T14:38	10.00333	-22.99917	-5009	Eastern Tropical Atlantic Ocean	9.6	28.1	35.5	-21.6	4.5	0.3649	4543	3.0	24.1	0.53	0.04	0.18	0.04	6.35	0.51	12.41	4.34	18.76	4.85
M130_981-1	CTD/Rosette	CTD-RO	2016-09-04T23:18	9.51083	-23.00767	-4637	Eastern Tropical Atlantic Ocean	10.0	28.0	35.6	-20.3	18.6	0.3653	4543	3.0	24.0	0.52	0.08	0.22	0.06	6.26	0.58	16.20	6.79	22.46	7.36
M130_983-1	CTD/Rosette	CTD-RO	2016-09-05T04:10	9.00017	-22.99967	-4818	Eastern Tropical Atlantic Ocean	9.5	28.2	35.4	-22.4	0.0	0.3642	4543	3.0	24.0	0.44	0.05			5.49	0.96	0.00	0.00	5.49	0.96
M130_989-1	CTD/Rosette	CTD-RO	2016-09-05T14:56	8.00083	-23.00017	-4417	Eastern Tropical Atlantic Ocean	8.8	28.1	35.2	-21.8	2.1	0.3651	4543	3.0	24.0	0.31	0.03			1.32	0.40	0.00	0.00	1.32	0.40
M130_994-1	CTD/Rosette	CTD-RO	2016-09-06T05:35	7.99250	-20.97467	-2822	Eastern Tropical Atlantic Ocean	73.2	17.9	35.8	-26.5	0.0	0.3648	4543	3.0	24.0	0.15	0.00			0.24	0.08	0.00	0.00	0.24	0.08
M130_994-1	CTD/Rosette	CTD-RO	2016-09-06T05:35	7.99250	-20.97467	-2822	Eastern Tropical Atlantic Ocean	27.1	27.4	35.7	-22.6	0.0	0.3652	4543	3.0	24.0	0.38	0.03	0.12		1.98	0.35	3.19		5.17	0.35
M130_994-1	CTD/Rosette	CTD-RO	2016-09-06T05:35	7.99250	-20.97467	-2822	Eastern Tropical Atlantic Ocean	9.1	27.7	35.5	-21.9	0.7	0.3648	4543	3.0	24.0	0.35	0.07	0.12	0.00	2.51	0.89	6.21	1.65	8.71	2.54
M130_998-1	CTD/Rosette	CTD-RO	2016-09-06T18:19	7.99950	-18.99750	-4570	Eastern Tropical Atlantic Ocean	11.7	27.7	35.1	-21.4	6.9	0.3654	4543	3.0	24.0	0.45	0.03	0.15	0.02	3.33	1.16	2.79	0.75	6.12	1.91
M130_1002-1	CTD/Rosette	CTD-RO	2016-09-07T12:12	9.99983	-19.99900	-4478	Eastern Tropical Atlantic Ocean	34.1	17.3	35.7	-27.2	0.0	0.3649	4543	3.0	24.0	0.30	0.05			0.14	0.01	0.00		0.14	0.01
M130_1002-1	CTD/Rosette	CTD-RO	2016-09-07T12:12	9.99983	-19.99900	-4478	Eastern Tropical Atlantic Ocean	13.6	28.1	34.8	-22.7	0.0	0.3665	4543	3.0	24.0	0.54	0.03			0.41	0.10	0.00		0.41	0.10
M130_1002-1	CTD/Rosette	CTD-RO	2016-09-07T12:12	9.99983	-19.99900	-4478	Eastern Tropical Atlantic Ocean	8.7	28.1	34.7	-22.7	0.0	0.3664	4543	3.0	24.0	0.56	0.11	0.14	0.02	2.52	0.52	2.07	1.52	4.59	2.04
M130_1005-1	CTD/Rosette	CTD-RO	2016-09-08T04:18	11.99950	-20.99917	-4918	Eastern Tropical Atlantic Ocean	39.0	20.1	35.8	-23.5	0.0	0.3673	4543	3.0	24.0	0.56	0.05			0.13	0.06	0.00	0.00	0.13	0.06
M130_1005-1	CTD/Rosette	CTD-RO	2016-09-08T04:18	11.99950	-20.99917	-4918	Eastern Tropical Atlantic Ocean	18.5	28.0	35.7	-23.1	0.0	0.3675	4543	3.0	24.0	0.46	0.01	0.53		2.98	0.93	0.63		3.61	0.93
M130_1005-1	CTD/Rosette	CTD-RO	2016-09-08T04:18	11.99950	-20.99917	-4918	Eastern Tropical Atlantic Ocean	9.0	28.6	35.7	-21.7	3.7	0.3665	4543	3.0	24.1	0.38	0.09			2.58	0.45	0.00	0.00	2.58	0.45
M130_1010-1	CTD/Rosette	CTD-RO	2016-09-08T22:08	11.02517	-21.20867	-5076	Eastern Tropical Atlantic Ocean	44.1	16.8	35.7	-25.8	0.0	0.3652	4543	3.0	24.0	0.28	0.02	0.11		0.11	0.02	0.14		0.25	0.02
M130_1010-1	CTD/Rosette	CTD-RO	2016-09-08T22:08	11.02517	-21.20867	-5076	Eastern Tropical Atlantic Ocean	26.7	23.2	35.9	-22.4	0.0	0.3669	4543	3.0	24.0	0.45	0.02	0.13		0.52	0.01	0.12		0.64	0.01
M130_1010-1	CTD/Rosette	CTD-RO	2016-09-08T22:08	11.02517	-21.20867	-5076	Eastern Tropical Atlantic Ocean	9.9	28.5	35.8	-21.8	2.4	0.3653	4543	3.0	24.0	0.41	0.03	0.13	0.03	3.34	0.77	0.69	0.20	4.02	0.97
M130_1016-1	CTD/Rosette	CTD-RO	2016-09-09T14:45	9.00000	-20.99983	-2042	Eastern Tropical Atlantic Ocean	33.6	22.1	35.9	-22.6	0.0	0.3688	4543	3.0	24.0	0.32	0.10			0.00	0.00	0.00	0.00	0.00	0.00
M130_1016-1	CTD/Rosette	CTD-RO	2016-09-09T14:45	9.00000	-20.99983	-2042	Eastern Tropical Atlantic Ocean	26.9	24.1	36.0	-22.7	0.0	0.3669	4543	3.0	24.0	0.49	0.03	0.13		0.25	0.09	0.08		0.33	0.09
M130_1016-1	CTD/Rosette	CTD-RO	2016-09-09T14:45	9.00000	-20.99983	-2042	Eastern Tropical Atlantic Ocean	9.3	27.6	35.5	-21.3	7.5	0.3654	4543	3.0	24.0	0.46	0.04	0.17		8.23	2.19	4.38		12.61	2.19
M130_1019-1	CTD/Rosette	CTD-RO	2016-09-10T09:19	7.49967	-22.99983	-4392	Eastern Tropical Atlantic Ocean	9.6	27.8	35.3	-21.2	8.7	0.3651	4543	3.0	24.0	0.31	0.04			4.12	0.15	0.00	0.00	4.12	0.15
M130_1027-1	CTD/Rosette	CTD-RO	2016-09-10T20:27	6.49917	-23.00033	-3088	Eastern Tropical Atlantic Ocean	8.5	28.0	35.3	-21.1	9.8	0.3646	4543	3.0	24.0	0.30	0.02			3.94	0.92	0.00	0.00	3.94	0.92
M130_1031-1	CTD/Rosette	CTD-RO	2016-09-11T05:30	5.50017	-23.00000	-4233	Eastern Tropical Atlantic Ocean	9.1	27.9	35.2	-21.5	5.9	0.3650	4543	3.0	24.0	0.33	0.01			2.82	0.21	0.00	0.00	2.82	0.21
M130_1037-1	CTD/Rosette	CTD-RO	2016-09-11T14:34	5.00017	-22.99983	-4217	Eastern Tropical Atlantic Ocean	8.6	27.9	35.0	-21.4	7.1	0.3646	4543	3.0	24.0	0.26	0.01			2.35	0.52	0.00	0.00	2.35	0.52
M130_1042-1	CTD/Rosette	CTD-RO	2016-09-12T04:09	4.50017	-22.99983	-4130	Eastern Tropical Atlantic Ocean	9.2	27.8	34.9	-22.4	0.0	0.3641	4543	3.0	24.0	0.28	0.04			2.14	0.27	0.00	0.00	2.14	0.27
M130_1045-1	CTD/Rosette	CTD-RO	2016-09-12T14:43	3.99933	-22.99983	-4220	Eastern Tropical Atlantic Ocean	8.8	27.7	35.2	-21.9	0.6	0.3644	4543	3.0	24.0	0.27	0.02			2.02	0.40	0.00	0.00	2.02	0.40
M130_1047-1	CTD/Rosette	CTD-RO	2016-09-12T20:39	3.50033	-22.99983	-4388	Eastern Tropical Atlantic Ocean	8.9	27.6	35.6	-21.8	2.4	0.3652	4543	3.0	24.0	0.24	0.02			2.20	0.44	0.00	0.00	2.20	0.44
M130_1050-1	CTD/Rosette	CTD-RO	2016-09-13T03:21	3.00050	-23.00000	-4650	Eastern Tropical Atlantic Ocean	8.9	27.4	36.0	-21.5	5.3	0.3653	4543	3.0	24.0	0.32	0.06			2.98	0.81	0.00	0.00	2.98	0.81
M130_1051-1	CTD/Rosette	CTD-RO	2016-09-13T09:21	2.50050	-23.00000	-4714	Eastern Tropical Atlantic Ocean	9.5	26.8	36.0	-22.7	0.0	0.3652	4543	3.0	24.0	0.32	0.03			1.89	0.08	0.00	0.00	1.89	0.08
M130_1054-1	CTD/Rosette	CTD-RO	2016-09-13T15:35	1.99800	-23.00167	-4332	Eastern Tropical Atlantic Ocean	8.9	26.7	35.9	-22.8	0.0	0.3666	4543	3.0	24.0	0.29	0.01			2.01	0.25	0.00	0.00	2.01	0.25
M130_1056-1	CTD/Rosette	CTD-RO	2016-09-14T01:34	1.33367	-23.00133	-4720	Eastern Tropical Atlantic Ocean	9.3	26.1	36.0	-22.5	0.0	0.3673	4543	3.0	24.1	0.34	0.02			2.10	0.23	0.00	0.00	2.10	0.23
M130_1060-1	CTD/Rosette	CTD-RO	2016-09-14T13:11	0.66817	-22.99967	-4314	Eastern Tropical Atlantic Ocean	9.2	26.0	36.1	-22.7	0.0	0.3660	4543	3.0	24.0	0.41	0.02			2.27	0.37	0.00	0.00	2.27	0.37
M130_1068-1	CTD/Rosette	CTD-RO	2016-09-14T22:17	0.33317	-22.99767	-3918	Eastern Tropical Atlantic Ocean	71.5	24.2	36.1	-23.4	0.0	0.3666	4543	3.0	23.9	0.22	0.01	0.05	0.01	0.07	0.00	0.00	0.00	0.07	0.00
M130_1068-1	CTD/Rosette	CTD-RO	2016-09-14T22:17	0.33317	-22.99767	-3918	Eastern Tropical Atlantic Ocean	35.2	25.8	36.1	-22.3	0.0	0.3676	4543	3.0	24.0	0.43	0.05	0.09	0.01	2.64	0.69	0.00	0.00	2.64	0.69
M130_1068-1	CTD/Rosette	CTD-RO	2016-09-14T22:17	0.33317	-22.99767	-3918	Eastern Tropical Atlantic Ocean	7.4	26.0	36.1	-22.5	0.0	0.3676	4543	3.0	24.0	0.49	0.09	0.12		2.32	0.19	0.11		2.43	0.19
M130_1069-1	CTD/Rosette	CTD-RO	2016-09-15T02:10	0.00250	-23.03117	-3949	Eastern Tropical Atlantic Ocean	8.9	25.9	36.1	-22.9	0.0	0.3667	4543	3.0	24.0	0.35	0.06			2.44	0.32	0.00	0.00	2.44	0.32
M130_1078-1	CTD/Rosette	CTD-RO	2016-09-15T23:30	-0.33217	-22.99883	-4621	Eastern Tropical Atlantic Ocean	9.5	26.0	36.2	-21.8	1.9	0.3674	4543	3.0	24.0	0.36	0.04			1.91	0.38	0.00	0.00	1.91	0.38
M130_1080-1	CTD/Rosette	CTD-RO	2016-09-16T04:20	-0.66567	-22.99883	-3570	Eastern Tropical Atlantic Ocean	9.3	25.9	36.2	-22.7	0.0	0.3667	4543	3.0	24.0	0.47	0.08			2.43	0.24	0.00	0.00	2.43	0.24
M130_1090-1	CTD/Rosette	CTD-RO	2016-09-16T21:41	-1.32850	-22.99250	-4837	Eastern Tropical Atlantic Ocean	56.4	25.3	36.1	-22.9	0.0	0.3674	4543	3.0	23.1	0.37	0.04			0.10	0.02	0.00		0.10	0.02
M130_1090-1	CTD/Rosette	CTD-RO	2016-09-16T21:41	-1.32850	-22.99250	-4837	Eastern Tropical Atlantic Ocean	38.5	26.0	36.1	-22.1	0.0	0.3675	4543	3.0	23.1	0.40	0.08			1.86	0.26	0.00		1.86	0.26
M130_1090-1	CTD/Rosette	CTD-RO	2016-09-16T21:41	-1.32850	-22.99250	-4837	Eastern Tropical Atlantic Ocean	9.2	26.0	36.1	-21.9	1.0	0.3674	4543	3.0	23.1	0.39	0.03			2.39	0.44	0.00		2.39	0.44
M130_1092-1	CTD/Rosette	CTD-RO	2016-09-17T08:19	-1.99967	-23.00017	-5235	Eastern Tropical Atlantic Ocean	8.9	25.8	36.1	-21.0	11.5	0.3608	4543	3.0	24.0	0.30	0.04			2.24	0.40	0.00	0.00	2.24	0.40
M130_1094-1	CTD/Rosette	CTD-RO	2016-09-17T15:15	-2.50300	-23.00133	-5776	Eastern Tropical Atlantic Ocean	9.6	25.9	36.1	-22.4	0.0	0.3677	4543	3.0	24.0	0.33	0.01			2.23	0.24	0.00	0.00	2.23	0.24
M130_1096-1	CTD/Rosette	CTD-RO	2016-09-17T21:53	-2.99983	-23.00033	-5487	Eastern Tropical Atlantic Ocean	10.3	25.8	36.1	-23.3	0.0	0.3680	4543	3.0	24.0	0.31	0.01			2.28	0.15	0.00	0.00	2.28	0.15
M130_1100-1	CTD/Rosette	CTD-RO	2016-09-18T12:37	-3.99883	-23.00067	-5860	Eastern Tropical Atlantic Ocean	8.5	25.8	36.1	-22.6	0.0	0.3670	4543	3.0	24.0	0.33	0.04			1.78	0.28	0.00	0.00	1.78	0.28
M130_1104-1	CTD/Rosette	CTD-RO	2016-09-19T01:51	-5.00000	-23.00017	-5306	Eastern Tropical Atlantic Ocean	8.6	25.8	36.0	-22.9	0.0	0.3671	4543	3.0	24.0	0.29	0.02			1.70	0.40	0.00	0.00	1.70	0.40