Publication Date:
2024-01-06
Description:
We investigated the seawater methanol abundance, the dynamic of microbial methanol (MeOH) metabolism and the geochemical parameters in the northwest Pacific Ocean (NWPO) area. Seawater samples were collected during May-June 2021 aboard the R/V “Dongfanghong 3” in the northwest Pacific Ocean. Seawater was sampled using a Seabird 911 CTD-Niskin rosette system equipped with conductivity, temperature and depth sensors. Methanol samples were collected directly without filters and then stored at -80℃ for laboratory analysis. Methanol concentrations were determined by a modified commercial purge and trap system combined with Agilent GC-8890 gas chromatograph with a flame ionization detector. Microbial methanol assimilation and oxidation rates were determined by quantifying 14C-MeOH incorporation into biomass and oxidation to CO2 (Zhuang et al., 2018). Nutrients were measured using Seal Analytical Quaatro nutrient autoanalyzer except for ammonium which was analyzed by a fluorometric method on board (Ning et al., 2013). Chlorophyll-a was measured by fluorometric method (Parsons et al., 1984).
Keywords:
14C radioactive tracer incubation (Zhuang et al., 2018); Agilent GC-8890 gas chromatograph with a flame ionization detector; air-sea exchange; Ammonium; Chlorophyll a; Continuous Segmented Flow Analyzer, SEAL Analytical, QuAAtro39; CTD, Sea-Bird, SBE 911; CTD/Rosette; CTD-RO; DATE/TIME; Depth, bathymetric; DEPTH, water; Dong Fang Hong 3; Event label; Fluorometric method (Ning et al., 2013); Fluorometric method (Parsons et al., 1984); LATITUDE; LONGITUDE; methanol; Methanol; Methanol, assimilation rate; Methanol, assimilation rate, standard deviation; Methanol, oxidation rate; Methanol, oxidation rate, standard deviation; Methanol, total uptake rate; Methanol, total uptake rate, standard deviation; microbial metabolism; Nitrate; Nitrite; North Pacific Ocean; Northwest Pacific Integrated Research Cruise; Northwest Pacific Ocean; NWPIRC; NWPIRC_D1; NWPIRC_D2-1; NWPIRC_D3; NWPIRC_D4; NWPIRC_D5; NWPIRC_D6-1; NWPIRC_E1; NWPIRC_E10; NWPIRC_E11; NWPIRC_E12; NWPIRC_E2; NWPIRC_E3; NWPIRC_E4; NWPIRC_E5; NWPIRC_E6; NWPIRC_E7; NWPIRC_E8; NWPIRC_E9; Phosphate; Salinity; Ships weather station; Site; source and sink; Temperature, water; Wind speed
Type:
Dataset
Format:
text/tab-separated-values, 248 data points
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