Regaudie-de-Gioux, Aurore; Huete-Ortega, Maria; Sobrino, Cristina; López-Sandoval, Daffne C; González, Natalia; Fernández-Carrera, Ana; Vidal, Montserrat; Marañón, Emilio; Cermeño, Pedro; Latasa, Mikel; Agustí, Susana; Duarte, Carlos (2019): Primary production using ¹⁴C method in subtropical gyres regions [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.899853, Supplement to: Regaudie-de-Gioux, Aurore; Huete-Ortega, Maria; Sobrino, Cristina; López-Sandoval, Daffne C; González, N; Fernández-Carrera, Ana; Vidal, Montserrat; Marañón, Emilio; Cermeño, Pedro; Latasa, Mikel; Agustí, Susana; Duarte, Carlos Manuel (2019): Multi-model remote sensing assessment of primary production in the subtropical gyres. Journal of Marine Systems, 196, 97-106, https://doi.org/10.1016/j.jmarsys.2019.03.007
Always quote citation above when using data! You can download the citation in several formats below.
Abstract:
Seawater was sampled from five depths in the euphotic zone corresponding to 100 % (ca. 3 m depth), 50 %, 20 %, 7 % and 1 % of incident Photosynthetically Active Radiation (PAR). For each depth, four 72 mL polystyrene bottles (three clear bottles and one dark bottle) were filled with unfiltered seawater, inoculated with 10 - 20 µCi NaH¹⁴CO₃ and incubated on-deck from dawn to dusk. Temperature and irradiance in the incubators simulated the water temperature and the incident irradiance at the corresponding depth of each sample by using a combination of neutral density and blue filters (Mist Blue, ref. 061, Lee Filters ®). After incubation, samples from three of the five depths (100 %, 20 % and 1 % PAR) were sequentially filtered through 20, 2 and 0.2 µm polycarbonate filters while the other depths (50 % and 7 % PAR) were directly filtered by 0.2 µm. Immediately after filtering, filters were then exposed to concentrated HCl fumes at least 12 h to remove the non-fixed inorganic ¹⁴C. Filters were placed in scintillation vials to which 5 mL of liquid scintillation cocktail was added. The radioactivity on each filter (disintegrations per minute, DPM) was determined using a Wallac scintillation counter. To compute the rate of photosynthetic carbon fixation, the dark-bottle DPM was subtracted from the light-bottle DPM values. A constant value of 24,720 µg L-1 (or 2,060 µmol L-1) was assumed for the concentration of dissolved inorganic carbon for surface waters in tropical ocean (Key et al., 2004). A correction factor of 1.05 was applied to this constant value for discrimination isotopic. Total primary production was calculated as the sum of the primary production on each size class.
Project(s):
Malaspina circumnavigation expedition (MALASPINA-2010)
Funding:
Ministerio de Ciencia e Innovación (MICINN), grant/award no. CSD2008-00077: Circumnavigation expedition Malaspina 2010: Global Change and Exploration of Biodiversity of the Global Ocean
Coverage:
Median Latitude: -6.124516 * Median Longitude: -34.203952 * South-bound Latitude: -40.550000 * West-bound Longitude: -178.210000 * North-bound Latitude: 32.910000 * East-bound Longitude: 142.500000
Date/Time Start: 2010-12-22T00:00:00 * Date/Time End: 2011-07-11T00:00:00
Minimum DEPTH, water: 0 m * Maximum DEPTH, water: 160 m
Event(s):
MALASPINA_LEG1_006-3 (MH008_006) * Latitude: 23.270000 * Longitude: -22.220000 * Date/Time: 2010-12-22T00:00:00 * Campaign: MALASPINA_LEG1 (29HE20101215) * Basis: Hespérides * Method/Device: CTD/Rosette (CTD-RO)
MALASPINA_LEG1_007-3 (MH009_007) * Latitude: 21.450000 * Longitude: -23.450000 * Date/Time: 2010-12-23T00:00:00 * Campaign: MALASPINA_LEG1 (29HE20101215) * Basis: Hespérides * Method/Device: CTD/Rosette (CTD-RO)
MALASPINA_LEG1_008-3 (MH010_008) * Latitude: 20.260000 * Longitude: -24.250000 * Date/Time: 2010-12-24T00:00:00 * Campaign: MALASPINA_LEG1 (29HE20101215) * Basis: Hespérides * Method/Device: CTD/Rosette (CTD-RO)
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Event label | Event | Regaudie-de-Gioux, Aurore | |||
| 2 | Latitude of event | Latitude | Regaudie-de-Gioux, Aurore | |||
| 3 | Longitude of event | Longitude | Regaudie-de-Gioux, Aurore | |||
| 4 | Date/Time of event | Date/Time | Regaudie-de-Gioux, Aurore | |||
| 5 | DEPTH, water | Depth water | m | Regaudie-de-Gioux, Aurore | Geocode | |
| 6 | Primary production of carbon per hour | PP C | mg/m3/h | Regaudie-de-Gioux, Aurore | see abstract | |
| 7 | Primary production of carbon, standard deviation | PP C std dev | ± | Regaudie-de-Gioux, Aurore | see abstract | mg/m³/h |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Size:
1241 data points