Concentration of Chl-a, DOC, nutrients and Non-methane hydrocarbons in the Jiaozhou Bay on the east coast of North China (2016.9-2017.8)

DOI

Seawater samples were collected monthly using a 5 L plexiglass water sampler from surface (<1 m) and subsurface (~1 m above bottom) layers at 14 study sites in Jiaozhou Bay during September 2016 and August 2017. Seawater NMHCs concentrations were measured with a customized purge and trap preconcentration setup coupled to a gas chromatography-mass spectrometer.Jiaozhou_Bay_2016-2017.

Analysis methods: Temperature,salinity was measured by CTD probe (SBE 38). Nutrients were determined with an AA3 nutrients analyzer (SEAL Analytical, UK). For Chl-a analysis, ~300 ml seawater was filtered through an 0.7 μm Whatman GF/F filter to collect phytoplankton biomass. The filters were soaked in 90% acetone solution for 24 hours and then centrifuged for 10 min at 4000 rpm. The supernatant was analyzed with a fluorescence spectrophotometer (Hitachi F-4500). DOC was determined using the high-temperature catalytic oxidation method by non-dispersive infrared gas analyzer (Shimadzu TOC-142 VCPH, Shimadzu Co., Japan).* Seawater NMHCs concentrations were measured with a customized purge and trap preconcentration setup coupled to a gas chromatography-mass spectrometer (GC-MS,Agilent 7890N/5973N, USA).

Identifier
DOI https://doi.org/10.1594/PANGAEA.935801
Related Identifier https://doi.org/10.1594/PANGAEA.935806
Metadata Access https://ws.pangaea.de/oai/provider?verb=GetRecord&metadataPrefix=datacite4&identifier=oai:pangaea.de:doi:10.1594/PANGAEA.935801
Provenance
Creator Li, Xiao-Jun ORCID logo; Liang, Hao-Rui; Zhuang, Guang-Chao ORCID logo; Wu, Ying-Cui ORCID logo; Li, Si-Tong; Zhang, Hong-Hai ORCID logo; Montgomery, Andrew; Yang, Gui-Peng ORCID logo
Publisher PANGAEA
Publication Year 2021
Rights Creative Commons Attribution 4.0 International; https://creativecommons.org/licenses/by/4.0/
OpenAccess true
Representation
Language English
Resource Type Dataset
Format text/tab-separated-values
Size 4886 data points
Discipline Earth System Research
Spatial Coverage (120.125W, 36.030S, 120.350E, 36.200N); North China
Temporal Coverage Begin 2016-09-01T00:00:00Z
Temporal Coverage End 2017-08-01T00:00:00Z