Kodama, Taketoshi; Nishimoto, Atsushi; Nakamura, Ken-ichi; Nakae, Misato; Iguchi, Naoki; Igeta, Yosuke; Kogure, Yoichi (2023): Carbon and nitrogen stable isotope ratios of particulate organic matter in the southern Sea of Japan from 2018 to 2021 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.963198
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Published: 2023-11-13 • DOI registered: 2023-12-12
Abstract:
Carbon and nitrogen stable isotope ratio of particulate organic matter (POM) was collected in the surface layer of the southern Sea of Japan. 0.9–11.5 L of seawater was filtered using a pre-combusted (450 °C, 6 h) glass fiber filter (GF/F, Whatman), and the carbon and nitrogen isotopic ratios were measured using an Isoprime 100 isotopic ratio mass spectrometer (Elementar, Langenselbold, Germany). The carbon: nitrogen ratio (C: N ratio) of POM occasionally showed outlier values. Therefore, the means and standard deviations (SDs) of the C: N ratio were calculated, and samples whose C: N ratio differed by > 3 × SD from the mean value were eliminated. With the POM, temperature, salinity, chlorophyll a concentration, and nutrient concentrations were measured.
Supplement to:
Kodama, Taketoshi; Nishimoto, Atsushi; Nakamura, Ken-ichi; Nakae, Misato; Iguchi, Naoki; Igeta, Yosuke; Kogure, Yoichi (2023): Multiple nitrogen sources for primary production inferred from δ 13 C and δ 15 N in the southern Sea of Japan. Biogeosciences, 20(17), 3667-3682, https://doi.org/10.5194/bg-20-3667-2023
Project(s):
JSPS KAKENHI (KAKENHI)
Funding:
Japan Society for the Promotion of Science (JSPS), grant/award no. 16K07831: Disturbances of plankton and benthic ecosystems in the coastal area of the Japan Sea with the coastal jets
Japan Society for the Promotion of Science (JSPS), grant/award no. 23H02285: Comparative biological oceanography between the Tsushima Warm Current and the Kuroshio
Coverage:
Median Latitude: 38.262682 * Median Longitude: 137.083042 * South-bound Latitude: 35.001167 * West-bound Longitude: 131.252333 * North-bound Latitude: 41.003333 * East-bound Longitude: 139.833333
Date/Time Start: 2016-07-24T20:40:00 * Date/Time End: 2021-07-24T13:02:00
Minimum DEPTH, water: 0 m * Maximum DEPTH, water: 100 m
Event(s):
Dai5Kaiyo_NJS-02r (NJS-02r) * Latitude: 37.566667 * Longitude: 138.033333 * Date/Time Start: 2016-09-03T22:35:21 * Date/Time End: 2016-09-03T22:37:30 * Location: Sea of Japan * Campaign: Dai5Kaiyo * Basis: Daigo-Kaiyo-Maru * Method/Device: CTD/Rosette (CTD-RO)
Dai5Kaiyo_NJS-04 (NJS-04) * Latitude: 38.083333 * Longitude: 137.766667 * Date/Time Start: 2016-09-04T18:02:47 * Date/Time End: 2016-09-04T18:03:46 * Location: Sea of Japan * Campaign: Dai5Kaiyo * Basis: Daigo-Kaiyo-Maru * Method/Device: CTD/Rosette (CTD-RO)
Dai5Kaiyo_NJS-07 (NJS-07) * Latitude: 38.333333 * Longitude: 138.083333 * Date/Time Start: 2016-09-05T17:59:08 * Date/Time End: 2016-09-05T17:59:08 * Location: Sea of Japan * Campaign: Dai5Kaiyo * Basis: Daigo-Kaiyo-Maru * Method/Device: CTD/Rosette (CTD-RO)
Parameter(s):
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
6150 data points
Download Data
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