Abundances of mixotrophic, phototrophic, and heterotrophic nanoflagellates, and associated environmental data, synthesized from the scientific literature from 1990-10-04 to 2018-02-01 (NCEI Accession 0294396)
This dataset contains biological, chemical, and physical data collected in the Aegean Sea, Arctic Ocean, Beaufort Sea, Bering Sea, Kattegat, The Sound, Great Belt, Little Belt, Mediterranean Sea, North Atlantic Ocean, North Pacific Ocean, Ross Sea, South Pacific Ocean, and Southern Ocean from 1990-10-04 to 2018-02-01. These data include Nitrate, PAR, bacterial abundance, chlorophyll a, and depth. These data were collected by Kyle F. Edwards of University of Hawaii at Manoa as part of the "Eating themselves sick? Ecological interactions among a mixotrophic flagellate, its prokaryotic prey, and an ingestible giant virus. (Giant virus ecology)" project. The Biological and Chemical Oceanography Data Management Office (BCO-DMO) submitted these data to NCEI on 2021-04-22.
The following is the text of the dataset description provided by BCO-DMO:
Acquisition Description:
Data were compiled from 130 experiments in 11 publications that use fluorescently labeled bacteria or beads to estimate the abundance of bacterivorous mixotrophic nanoflagellates (MNF), defined as nanoflagellates with both ingested labeled prey and chlorophyll autofluorescence.These experiments simultaneously counted heterotrophic nanoflagellates (nanoflagellates with no chlorophyll autofluorescence, HNF) and total phototrophic nanoflagellates (all nanoflagellates with chlorophyll autofluorescence, PNF). In some cases researchers also estimated bulk ingestion rate by MNF and HNF, and these data were also extracted.
To ask whether MNF, HNF, and PNF shift in relative abundance across environmental gradients, data on environmental conditions were extracted from the same studies: temperature, chlorophyll-a concentration, nitrate concentration, and bacterial abundance. Although some samples were taken from below the mixed layer, mixed layer Chl-a and nitrate were used as predictors for all analyses, intended as proxies of total productivity or nutrient supply at that location. For two studies Chl-a was not reported and climatological values were used. To capture the light environment, climatological photosynthetically active radiation data (PAR) were used, because in situ PAR data were reported in few studies. Monthly climatological mean PAR from the SeaWiFS mission for each location was extracted from the NASA Giovanni portal ().
For samples taken within the mixed layer the light environment was characterized as the median mixed layer PAR, defined as PARin * e^(−(0.121*Chlmix^0.428)*MLD/2), where PARin is incident PAR (mole photons per square meter per day), Chlmix is mixed layer Chl-a (micrograms per liter), and MLD is mixed layer depth (meters). For samples taken below the mixed layer the light environment was characterized as PAR at the sample depth, defined as PARin * e^(-(0.121*Chlmix^0.428)*MLD)
For four studies mixed layer depth could not be estimated from data in the study and was taken from a climatology (http://www.ifremer.fr/cerweb/deboyer/mld/Surface_Mixed_Layer_Depth.php).
The following is the text of the dataset description provided by BCO-DMO:
Acquisition Description:
Data were compiled from 130 experiments in 11 publications that use fluorescently labeled bacteria or beads to estimate the abundance of bacterivorous mixotrophic nanoflagellates (MNF), defined as nanoflagellates with both ingested labeled prey and chlorophyll autofluorescence.These experiments simultaneously counted heterotrophic nanoflagellates (nanoflagellates with no chlorophyll autofluorescence, HNF) and total phototrophic nanoflagellates (all nanoflagellates with chlorophyll autofluorescence, PNF). In some cases researchers also estimated bulk ingestion rate by MNF and HNF, and these data were also extracted.
To ask whether MNF, HNF, and PNF shift in relative abundance across environmental gradients, data on environmental conditions were extracted from the same studies: temperature, chlorophyll-a concentration, nitrate concentration, and bacterial abundance. Although some samples were taken from below the mixed layer, mixed layer Chl-a and nitrate were used as predictors for all analyses, intended as proxies of total productivity or nutrient supply at that location. For two studies Chl-a was not reported and climatological values were used. To capture the light environment, climatological photosynthetically active radiation data (PAR) were used, because in situ PAR data were reported in few studies. Monthly climatological mean PAR from the SeaWiFS mission for each location was extracted from the NASA Giovanni portal ().
For samples taken within the mixed layer the light environment was characterized as the median mixed layer PAR, defined as PARin * e^(−(0.121*Chlmix^0.428)*MLD/2), where PARin is incident PAR (mole photons per square meter per day), Chlmix is mixed layer Chl-a (micrograms per liter), and MLD is mixed layer depth (meters). For samples taken below the mixed layer the light environment was characterized as PAR at the sample depth, defined as PARin * e^(-(0.121*Chlmix^0.428)*MLD)
For four studies mixed layer depth could not be estimated from data in the study and was taken from a climatology (http://www.ifremer.fr/cerweb/deboyer/mld/Surface_Mixed_Layer_Depth.php).
Dataset Citation
- Cite as: Edwards, Kyle F. (2024). Abundances of mixotrophic, phototrophic, and heterotrophic nanoflagellates, and associated environmental data, synthesized from the scientific literature from 1990-10-04 to 2018-02-01 (NCEI Accession 0294396). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://www.ncei.noaa.gov/archive/accession/0294396. Accessed [date].
Dataset Identifiers
ISO 19115-2 Metadata
gov.noaa.nodc:0294396
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NOAA National Centers for Environmental Information +1-301-713-3277 NCEI.Info@noaa.gov |
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NOAA National Centers for Environmental Information ncei.info@noaa.gov |
Time Period | 1990-10-04 to 2018-02-01 |
Spatial Bounding Box Coordinates |
West: 168
East: 25
South: -77.71
North: 81
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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 |
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: 2024-06-28T10:25:17Z
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