Nitrate uptake from short-term 6-hour deckboard incubations on NOAA Ship Nancy Foster cruises NF1704 and NF1802 in the Gulf of Mexico in May of 2017 and 2018 (NCEI Accession 0278656)
This dataset contains chemical, optical, and physical data collected on R/V Nancy Foster during cruises NF1704 and NF1802 in the Gulf of Mexico from 2017-05-11 to 2018-05-16. These data include Ammonium, Nitrate, depth, irradiance, and particulate organic nitrogen. The instruments used to collect these data include CTD profiler, Elemental Analyzer, Isotope-ratio Mass Spectrometer, and Photosynthetically Available Radiation Sensor. These data were collected by Michael Stukel and Thomas Kelly of Florida State University as part of the "Collaborative Research: Mesoscale variability in nitrogen sources and food-web dynamics supporting larval southern bluefin tuna in the eastern Indian Ocean (BLOOFINZ-IO)" and "Effects of Nitrogen Sources and Plankton Food-Web Dynamics on Habitat Quality for the Larvae of Atlantic Bluefin Tuna in the Gulf of Mexico (GoMex Tuna Foodweb B)" projects and "Second International Indian Ocean Expedition (IIOE-2)" program. The Biological and Chemical Oceanography Data Management Office (BCO-DMO) submitted these data to NCEI on 2021-04-06.
The following is the text of the dataset description provided by BCO-DMO:
Dataset Description:
In addition to the funding sources listed in the "Funding Source" section, this dataset was partially funded by:
National Oceanic and Atmospheric Administration's RESTORE Program Grant (Project Title: Effects of nitrogen sources and plankton food-web dynamics on habitat quality for the larvae of Atlantic bluefin tuna in the Gulf of Mexico) under federal funding opportunity NOAA-NOS-NCCOS-2017-2004875, including NOAA JIMAR Cooperative Agreement, award #NA16NMF4320058, NOAA CIMAS Cooperative Agreement, award #NA15OAR4320064, and NOAA CIMEAS Cooperative Agreement, award #NA15OAR4320071.
The following is the text of the dataset description provided by BCO-DMO:
Dataset Description:
In addition to the funding sources listed in the "Funding Source" section, this dataset was partially funded by:
National Oceanic and Atmospheric Administration's RESTORE Program Grant (Project Title: Effects of nitrogen sources and plankton food-web dynamics on habitat quality for the larvae of Atlantic bluefin tuna in the Gulf of Mexico) under federal funding opportunity NOAA-NOS-NCCOS-2017-2004875, including NOAA JIMAR Cooperative Agreement, award #NA16NMF4320058, NOAA CIMAS Cooperative Agreement, award #NA15OAR4320064, and NOAA CIMEAS Cooperative Agreement, award #NA15OAR4320071.
Dataset Citation
- Cite as: Stukel, Michael; Kelly, Thomas (2023). Nitrate uptake from short-term 6-hour deckboard incubations on NOAA Ship Nancy Foster cruises NF1704 and NF1802 in the Gulf of Mexico in May of 2017 and 2018 (NCEI Accession 0278656). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://www.ncei.noaa.gov/archive/accession/0278656. Accessed [date].
Dataset Identifiers
ISO 19115-2 Metadata
gov.noaa.nodc:0278656
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Ordering Instructions | Contact NCEI for other distribution options and instructions. |
Distributor |
NOAA National Centers for Environmental Information +1-301-713-3277 NCEI.Info@noaa.gov |
Dataset Point of Contact |
NOAA National Centers for Environmental Information ncei.info@noaa.gov |
Time Period | 2017-05-11 to 2018-05-16 |
Spatial Bounding Box Coordinates |
West: -89.396
East: -87.209
South: 25.506
North: 28.354
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Dataset Progress Status | Complete - production of the data has been completed Historical archive - data has been stored in an offline storage facility |
Data Update Frequency | As needed |
Supplemental Information | Acquisition Description: We conducted short term (6-h) NO3- uptake experiments in deckboard incubators. Each incubator was uniformly shaded using clear or blue-tinted acrylic sheets to achieve three light levels as determined by simultaneously using a 2-π LI-COR photosynthetically active radiation (PAR) sensor to measure downwelling irradiance and a 4-π water-proof LI-COR PAR sensor to measure ambient irradiance within the incubator. These calibrations were done on the ship to account for light reflection or ship shading. Incubation light levels for the NF17 cruise were determined to be 145% (clear, surface), 79% (mixed layer), and 21% (lower mixed layer) of surface irradiance. For the NF1802 cruise, the clear incubator was replaced with one screened to 1.7% surface irradiance to mimic deep chlorophyll maximum light. All incubators were cooled with mixed-layer seawater. Samples were drawn from depths near these light levels (as determined from noon CTD casts with CTD-mounted PAR sensor). To determine patterns of nitrate uptake with depth, three 2.7-L samples from each of the three incubator light levels (e.g. 5 m, 15 m, 45 m for surface, 79% and 21% light levels, respectively) were collected near dusk and placed in the incubators until dawn (ship schedule and CTD water budget did not allow dawn sampling for these experiments). At dawn triplicate samples from each depth were spiked with 15NO3- (final concentration of 10 or 8 nmol L-1 on NF17 and NF18, respectively) and incubated for 6-h (dawn to roughly local noon). At the end of the incubation bottles were immediately vacuum filtered onto pre-combusted 25-mm GF/F filters in the dark. Filters were rinsed with filtered seawater, wrapped in foil and stored at 80°C. On land, samples were fumigated with HCl vapor to remove inorganic carbon, dried, and placed inside a tin cup for C/N and isotopic analysis at the UC Davis stable isotope facility. NO3- uptake rates in each incubation bottle (and associated uncertainties) were determined using equations in Stukel (2020). |
Purpose | This dataset is available to the public for a wide variety of uses including scientific research and analysis. |
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Last Modified: 2024-06-04T18:34:55Z
For questions about the information on this page, please email: ncei.info@noaa.gov
For questions about the information on this page, please email: ncei.info@noaa.gov