Spatial distribution of dimethylsulfide and dimethylsulfoniopropionate in the Yellow Sea and Bohai Sea during summer

Yang, Jian; Yang, Gui‐Peng; Zhang, Honghai; Zhang, Shenghui

doi:10.1007/s00343-015-4188-5

Cited by 22 publications

(24 citation statements)

References 68 publications

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“…The Chl a contents generally decreased from the inshore to offshore areas, with minimum values in the medium and bottom layers of the offshore stations. High values of sulfur compounds in the surface seawater and higher concentrations in the YSCWM region than in the well-mixed shallow-water region were in agreement with the results of Yang et al (2015b). In addition, there was a relatively high value of DMS in the bottom layer of station H23.…”

Section: Vertical Distributions Of Aad Dms and Dmsp In The Bs And Yssupporting

confidence: 85%

Acrylic acid and related dimethylated sulfur compounds in the Bohai and Yellow seas during summer and winter

Zhang

et al. 2020

Biogeosciences

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Spatiotemporal distributions of dissolved acrylic acid (AAd) and related biogenic sulfur compounds including dimethylsulfide (DMS) and dissolved and total dimethylsulfoniopropionate (DMSPd and DMSPt) were investigated in the Bohai Sea (BS) and Yellow Sea (YS) during summer and winter. AAd and DMS production from DMSPd degradation and AAd degradation were analyzed. Significant seasonal variations in AAd and DMS(P) were observed. AAd exhibited similar distributions during summer and winter; i.e., relatively high values of AAd occurred in the BS and the northern YS, and the concentrations decreased from inshore to offshore areas in the southern YS. Due to strong biological production from DMSP and abundant terrestrial inputs from rivers in summer, the AAd concentrations in the surface seawater during summer (30.01 nmol L −1 ) were significantly higher than those during winter (14.98 nmol L −1 ). The average concentration sequence along the transects during summer (AAd > DMSPt > DMS > DMSPd) showed that particulate DMSP (DMSPp) acted as a DMS producer and that terrestrial sources of AAd were present; in contrast, the sequence in winter was AAd > DMSPt > DMSPd > DMS. High values of AAd and DMS(P) were mostly observed in the upper layers, with occasional high values at the bottom. High AAd concentrations in the porewater, which could be transported to the bottom water, might result from the cleavage of intracellular DMSP and reduce bacterial metabolism in sediments. In addition, the production and degradation rates of biogenic sulfur compounds were significantly higher in summer than in winter, and the removal of AAd was pri-marily attributed to microbial consumption. Other sources of AAd existed aside from the production from DMSPd.

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Section: Vertical Distributions Of Aad Dms and Dmsp In The Bs And Yssupporting

confidence: 85%

Acrylic acid and related dimethylated sulfur compounds in the Bohai and Yellow seas during summer and winter

Zhang

et al. 2020

Biogeosciences

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“…Both Chl a and DMS did not displayed obviously stratified distributions. High values of the sulfur compounds in the surface seawater and higher concentrations in the YSCWM region than in the well mixed shallow water 220 region were in line with the results of Yang et al (2015b). There was a high value of DMS in the bottom layer of station H23, which might result from the release from porewater (Andreae, 1985).…”

supporting

confidence: 79%

“…AA showed positive relationships with DMSPd in the SYS, which suggests that AA in the SYS is mainly produced by DMSPd degradation rather than the terrestrial inputs. Although phytoplankton plays an important role in controlling 175 the levels of sulfur products, some researchers still found no correlations between Chl a and them in this study area (Li et al, 2016;Yang et al, 2015b) .…”

Section: Incubation Experimentsmentioning

confidence: 69%

Acrylic acid and related dimethylated sulfur compounds in the Bohai and Yellow Seas during summer and winter

Wu¹,

Li²,

Zhang³

et al. 2019

Preprint

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Spatio-temporal distributions of acrylic acid (AA) and related biogenic sulfur compounds including 10 dimethylsulfide (DMS) and dissolved and total dimethylsulfoniopropionate (DMSPd and DMSPt) were investigated in the Bohai Sea (BS) and the Yellow Sea (YS) during summer and winter. AA and DMS production from DMSPd degradation and AA degradation were studied. Significant seasonal variations of AA and DMS(P) were observed. AA presented similar distributions during summer and winter, that is, relatively high values of AA emerged in the BS and the north YS and concentrations decreased from inshore to offshore areas in the south YS. Due to strong biological production 15 from DMSP and abundant terrestrial inputs from rivers in summer, AA concentrations at surface were higher during summer (30.01 nmol L -1 ) than during winter (14.98 nmol L -1 ). The average concentration sequence AA>DMSPt>DMS>DMSPd at transects during summer illustrated particulate DMSP (DMSPp) as a DMS producer and terrestrial sources of AA, whereas the sequence in winter was AA>DMSPt>DMSPd>DMS. High values of AA and DMS(P) were mostly observed in the upper layers with occasional high values at bottom. High AA concentrations in 20 porewater which could be transported into the bottom water might result from the cleavage of intracellular DMSP andreduce bacterial metabolism in sediments. In addition, the degradation/production rates of biogenic sulfur compounds were obviously higher in summer than in winter and the removal of AA was mainly attributed to the microbial consumption. Other sources of AA besides the production from DMSPd was also proved.

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“…3), where we found an inverse relationship between salinity and NO surface concentrations. Here high NO concentrations were associated with high DIN concentrations (data not shown; see Liu et al, 2015;Yang et al, 2015) indicating that DIN, especially NO − 2 , was a prerequisite for enhanced NO concentrations.…”

Section: No In the Surface And Bottom Layersmentioning

confidence: 90%

Nitric oxide (NO) in the Bohai Sea and the Yellow Sea

et al. 2019

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Abstract. Nitric oxide (NO) is a short-lived compound of the marine nitrogen cycle; however, our knowledge about its oceanic distribution and turnover is rudimentary. Here we present the measurements of dissolved NO in the surface and bottom layers at 75 stations in the Bohai Sea (BS) and the Yellow Sea (YS) in June 2011. Moreover, NO photoproduction rates were determined at 27 stations in both seas. The NO concentrations in the surface and bottom layers were highly variable and ranged from below the limit of detection (i.e., 32 pmol L−1) to 616 pmol L−1 in the surface layer and 482 pmol L−1 in the bottom layer. There was no significant difference (p>0.05) between the mean NO concentrations in the surface (186±108 pmol L−1) and bottom (174±123 pmol L−1) layers. A decreasing trend of NO in bottom-layer concentrations with salinity indicates a NO input by submarine groundwater discharge. NO in the surface layer was supersaturated at all stations during both day and night and therefore the BS and YS were a persistent source of NO to the atmosphere at the time of our measurements. The average flux was about 4.5×10-16 mol cm−2 s−1 and the flux showed significant positive relationship with the wind speed. The accumulation of NO during daytime was a result of photochemical production, and photoproduction rates were correlated to illuminance. The persistent nighttime NO supersaturation pointed to an unidentified NO dark production. NO sea-to-air flux densities were much lower than the NO photoproduction rates. Therefore, we conclude that the bulk of the NO produced in the mixed layer was rapidly consumed before its release to the atmosphere.

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Spatial distribution of dimethylsulfide and dimethylsulfoniopropionate in the Yellow Sea and Bohai Sea during summer

Cited by 22 publications

References 68 publications

Acrylic acid and related dimethylated sulfur compounds in the Bohai and Yellow seas during summer and winter

Acrylic acid and related dimethylated sulfur compounds in the Bohai and Yellow seas during summer and winter

Acrylic acid and related dimethylated sulfur compounds in the Bohai and Yellow Seas during summer and winter

Nitric oxide (NO) in the Bohai Sea and the Yellow Sea

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