Pajares, Silvia; Merino, Martin; Farías, Laura (2023): Concentrations of total N, total P, and gases in an oxygen-deficient upwelling system during El Niño (2019) [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.954152
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Published: 2023-01-13 • DOI registered: 2023-03-02
Abstract:
Seawater samples were collected in four stations along a cross-shore transect in front of the Port of Mazatlán (Mexico) during the oceanographic cruise Maz V (April 2019) on board the R/V “El Puma” (UNAM). Samples were collected at different depths based on the oxygen and chlorophyll-a profiles: surface (5 m depth); mixed layer, deep chlorophyll maximum (at 10–45 m depth); oxycline, base of the oxycline (at 60–125 m depth); upper OMZ; OMZ core (at 250 m depth); and bottom (between 23 m depth in S1 and 670 m depth in S4). Total N and P were determined using a Skalar San-Plus segmented-flow autoanalyzer. Dissolved gases were analyzed through the addition of 5 mL of ultrapure helium into the vials to generate a static-headspace equilibration. N2O was analyzed with a Varian 3380 gas chromatograph using an electron capture detector. CH4 was analyzed with a Schimadzu 17A gas chromatograph with a flame ionization detector and a capillary column.
Keyword(s):
Supplement to:
Pajares, Silvia; Farías, Laura (2023): Prokaryotic community dynamics and nitrogen-cycling genes in an oxygen-deficient upwelling system during La Niña and El Niño conditions. Environmental Microbiology, 1462-2920.16362, https://doi.org/10.1111/1462-2920.16362
Related to:
Pajares, Silvia; Merino, Martin; Farías, Laura (2021): Raw 16S rRNA sequence data of a microbial community in the oxygen minimum zone of the Mexican Pacific [dataset]. European Nucleotide Archive (ENA), insdc:PRJNA780024
Pajares, Silvia; Merino, Martin; Farías, Laura (2023): Abundance of N-cycling genes in an oxygen-deficient upwelling system during La Niña (2018) and El Niño (2019) [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.954155
Pajares, Silvia; Merino, Martin; Farías, Laura (2023): Oceanographic variables and nutrient concentrations in an oxygen-deficient upwelling system during La Niña (2018) and El Niño (2019) [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.954151
Pajares, Silvia; Merino, Martin; Farías, Laura (2023): Prokaryotic community (mayor clades contributing >0.1% of the total 16S rRNA sequences) in an oxygen-deficient upwelling system during La Niña (2018) and El Niño (2019) [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.954089
Funding:
Consejo Nacional de Ciencia y Tecnología (CONACYT), grant/award no. CF-2019-2266: Ciencia de Frontera
National Agency for Research and Development (ANID), grant/award no. ICM2019-015: Millennium Science Initiative Program
Coverage:
Median Latitude: 23.066404 * Median Longitude: -106.581346 * South-bound Latitude: 23.000000 * West-bound Longitude: -106.702216 * North-bound Latitude: 23.154416 * East-bound Longitude: -106.427883
Date/Time Start: 2019-04-02T02:00:00 * Date/Time End: 2019-04-02T15:00:00
Minimum DEPTH, water: 5 m * Maximum DEPTH, water: 670 m
Event(s):
Maz_V_S1 * Latitude: 23.154416 * Longitude: -106.427883 * Date/Time: 2019-04-02T02:00:00 * Elevation: -32.0 m * Location: Port of Mazatlán * Campaign: Maz_V * Basis: El Puma * Method/Device: CTD, Sea-Bird, SBE 19plus
Maz_V_S2 * Latitude: 23.078000 * Longitude: -106.555283 * Date/Time: 2019-04-02T15:00:00 * Elevation: -105.0 m * Location: Port of Mazatlán * Campaign: Maz_V * Basis: El Puma * Method/Device: CTD, Sea-Bird, SBE 19plus
Maz_V_S3 * Latitude: 23.033200 * Longitude: -106.640000 * Date/Time: 2019-04-02T11:00:00 * Elevation: -230.0 m * Location: Port of Mazatlán * Campaign: Maz_V * Basis: El Puma * Method/Device: CTD, Sea-Bird, SBE 19plus
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Event label | Event | Pajares, Silvia | |||
| 2 | Sample code/label | Sample label | Pajares, Silvia | |||
| 3 | Campaign | Campaign | Pajares, Silvia | |||
| 4 | Station label | Station | Pajares, Silvia | |||
| 5 | DEPTH, water | Depth water | m | Pajares, Silvia | Geocode | |
| 6 | Depth, description | Depth desc | Pajares, Silvia | |||
| 7 | Nitrogen, total | TN | µmol/l | Pajares, Silvia | Segmented flow auto-analyzer, Skalar Analytical B.V, San++ | |
| 8 | Phosphorus, total | TP | µmol/l | Pajares, Silvia | Segmented flow auto-analyzer, Skalar Analytical B.V, San++ | |
| 9 | Methane, dissolved | CH4 diss | nmol/l | Pajares, Silvia | Gas chromatograph, Shimadzu, 17A | |
| 10 | Nitrous oxide, dissolved | N2O | nmol/l | Pajares, Silvia | Gas chromatograph, Varian, Inc.. 3380 |
License:
Creative Commons Attribution-ShareAlike 4.0 International (CC-BY-SA-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
192 data points
Data
| 1 Event | 2 Sample label | 3 Campaign | 4 Station | 5 Depth water [m] | 6 Depth desc | 7 TN [µmol/l] | 8 TP [µmol/l] | 9 CH4 diss [nmol/l] | 10 N2O [nmol/l] |
|---|---|---|---|---|---|---|---|---|---|
| Maz_V_S1 | S1.1.V | Maz V | S1 | 5 | Surface | 1.13 | 18.41 | 3.69 | 17.33 |
| Maz_V_S1 | S1.2.V | Maz V | S1 | 10 | Mixed | 1.11 | 16.64 | 6.89 | 19.13 |
| Maz_V_S1 | S1.3.V | Maz V | S1 | 15 | Deep chlorophyll maximum | 0.78 | 18.64 | 8.47 | 20.87 |
| Maz_V_S1 | S1.4.V | Maz V | S1 | 23 | Bottom | 1.05 | 23.65 | 7.18 | 26.83 |
| Maz_V_S2 | S2.1.V | Maz V | S2 | 5 | Surface | 2.80 | 46.90 | 13.53 | 16.38 |
| Maz_V_S2 | S2.2.V | Maz V | S2 | 20 | Mixed | 1.02 | 32.20 | 13.46 | 20.52 |
| Maz_V_S2 | S2.3.V | Maz V | S2 | 30 | Mixed | 2.16 | 29.13 | 0.10 | 27.07 |
| Maz_V_S2 | S2.4.V | Maz V | S2 | 40 | Deep chlorophyll maximum | 2.10 | 32.45 | 4.17 | 37.13 |
| Maz_V_S2 | S2.5.V | Maz V | S2 | 70 | Base of the oxycline | 2.26 | 34.09 | 6.70 | 58.51 |
| Maz_V_S2 | S2.6.V | Maz V | S2 | 93 | Bottom | 3.31 | 63.44 | 5.08 | 39.25 |
| Maz_V_S3 | S3.1.V | Maz V | V.S3 | 5 | Surface | 2.33 | 34.24 | 2.00 | 13.49 |
| Maz_V_S3 | S3.2.V | Maz V | V.S3 | 30 | Deep chlorophyll maximum | 1.11 | 24.63 | 10.89 | 16.82 |
| Maz_V_S3 | S3.3.V | Maz V | V.S3 | 85 | Oxycline | 2.15 | 42.70 | 15.13 | 55.28 |
| Maz_V_S3 | S3.4.V | Maz V | V.S3 | 108 | Base of the oxycline | 2.33 | 40.97 | 1.18 | 46.52 |
| Maz_V_S3 | S3.5.V | Maz V | V.S3 | 120 | Upper OMZ | 2.17 | 36.69 | 15.81 | 29.67 |
| Maz_V_S3 | S3.6.V | Maz V | V.S3 | 150 | OMZ core | 2.42 | 32.97 | 15.59 | 20.76 |
| Maz_V_S3 | S3.7.V | Maz V | V.S3 | 215 | Bottom | 6.00 | 105.00 | 28.31 | 15.49 |
| Maz_V_S4 | S4.1.V | Maz V | S4 | 5 | Surface | 1.03 | 19.94 | 10.84 | 11.30 |
| Maz_V_S4 | S4.3.V | Maz V | S4 | 35 | Deep chlorophyll maximum | 1.22 | 19.34 | 8.17 | 23.04 |
| Maz_V_S4 | S4.4.V | Maz V | S4 | 81 | Oxycline | 2.10 | 36.49 | 1.42 | 57.91 |
| Maz_V_S4 | S4.5.V | Maz V | S4 | 125 | Base of the oxycline | 2.12 | 36.10 | 13.58 | 48.87 |
| Maz_V_S4 | S4.6.V | Maz V | S4 | 200 | Upper OMZ | 2.81 | 45.33 | 8.72 | 34.65 |
| Maz_V_S4 | S4.7.V | Maz V | S4 | 400 | OMZ core | 2.75 | 39.45 | 5.60 | 63.21 |
| Maz_V_S4 | S4.8.V | Maz V | S4 | 670 | Bottom | 3.20 | 61.96 | 0.10 | 71.00 |