Flux data of total mass, particulate organic carbon, and zooplankton fecal pellet of time-series sediment trap samples at the mooring TJ-T in the southern South China Sea


This dataset includes the total mass flux (TMF, mg m-2 d-1), particulate organic carbon (POC) content (%), POC flux (mg C m-2 d-1), fecal pellet numerical flux (pellets m-2 d-1), and fecal pellet carbon (FPC) flux (mg C m-2 d-1) of time-series sediment trap samples at 500 m and 2190 m water depths of the mooring TJ-T in the southern South China Sea from June 2020 to May 2021. A total of 42 samples were obtained (21 samples from each water depth) for this dataset. TMF of sediment trap samples was derived when the dry weight (mg) was divided by the collecting area (0.5 m2) and collecting time (16 days). POC content of sediment trap samples was measured by a Cario EL Cube elemental analyzer at the Third Institute of Oceanography, Ministry of Natural Resources, with a precision of better than ±0.02% (SD, 1σ; n = 2). POC flux was calculated by the product of the TMF and POC content. Zooplankton fecal pellets in the sinking particles were observed under a Leica M125 stereomicroscope coupled to a Leica digital camera at the State Key Laboratory of Marine Geology, Tongji University. Fecal pellets were identified, counted, and measured according to three shapes: ellipsoidal, cylindrical, and spherical, and each shape was counted and measured separately using the Fiji software. The biovolumes of the first 50–100 pellets were calculated using formulas for each shape, and the biovolume-carbon content conversion factor used is 0.036 mg C mm-3 for all pellets. Fecal pellet numerical and carbon fluxes were obtained when the pellet number and carbon content were divided by the collecting area (0.5 m2) and collecting time (16 days).

DOI https://doi.org/10.1594/PANGAEA.946825
Related Identifier References https://doi.org/10.1029/2022JC019412
Metadata Access https://ws.pangaea.de/oai/provider?verb=GetRecord&metadataPrefix=datacite4&identifier=oai:pangaea.de:doi:10.1594/PANGAEA.946825
Creator Li, Jiaying; Liu, Zhifei; Lin, Baozhi ORCID logo; Zhao, Yulong ORCID logo
Publisher PANGAEA
Publication Year 2022
Funding Reference National Natural Science Foundation of China https://doi.org/10.13039/501100001809 Crossref Funder ID 42130407 Mooring observation of deep-sea sediment transport processes in the southern South China Sea and their effects on ocean carbon cycling
Rights Licensing unknown: Please contact principal investigator/authors to gain access and request licensing terms; Data access is restricted (moratorium, sensitive data, license constraints)
OpenAccess false
Resource Type Dataset
Format text/tab-separated-values
Size 672 data points
Discipline Earth System Research
Spatial Coverage (109.977 LON, 9.278 LAT); Southern South China Sea