Distribution and interannual variation of water masses in the Bering Sea basin in summer

Liu, Na; Lin, LiNa; He, Yan; Tao, Li; Kong, Bin

doi:10.1360/n972015-00852

Cited by 3 publications

(3 citation statements)

References 3 publications

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“…According to the temperature‐salinity (T‐S) diagram (Figure a), three main water masses in the study area could be identified, similar to those described in previous studies (Liu et al, , ; Wang & Zhao, ): (1) Bering Basin Water (BBW), with salinities of 32.5–33.5 and temperatures of 4.2°C–11.0°C; (2) AW, with characteristic salinities of 32.5–33.0 and temperatures of 0.0°C–2.0°C; and (3) BSW, with salinities of 28.6–32.5 and temperatures of 1.0°C–10.5°C. BSW can be divided into low‐salinity (28.6–31.8) and high‐salinity (31.8–32.5) water masses, called BSW‐A and BSW‐B, respectively.…”

Section: Resultssupporting

confidence: 79%

“…The bacterial consumption rates were obtained as the difference between gross and net production rates. According to the temperature-salinity (T-S) diagram (Figure 3a), three main water masses in the study area could be identified, similar to those described in previous studies (Liu et al, 2016a(Liu et al, , 2016bWang & Zhao, 2011): (1) Bering Basin Water (BBW), with salinities of 32.5-33.5 and temperatures of 4.28C-11.08C;…”

Section: Biological Process Incubationssupporting

confidence: 78%

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Occurrence and Turnover of Biogenic Sulfur in the Bering Sea During Summer

Wang

Yang

et al. 2017

JGR Oceans

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The horizontal/geographical variations in dissolved dimethylsulfide (DMS), its precursor dimethylsulfoniopropionate (DMSPd and DMSPp), and chlorophyll a (Chl a), as well as the oceanographic parameters influencing the concentrations of dimethylated sulfur compounds, were investigated in the Bering Sea from July to August 2012. Similar to Chl a, the surface DMS and DMSPp levels, as well as DMS(P) production and consumption rates, exhibited a declining gradient from the central basin to the continental shelf, with high‐value areas appearing in the central basin, the slope regions, and Anadyr Strait but a low‐value area occurring on the outer‐middle continental shelf. Considerably high values of DMS and DMSP were measured in the saline Bering Sea Basin Deep Water (>2,000 m) located at the southwest of the Bering Basin because of the release of resuspension in 2,000 m depth and the DMSP production from endogenous benthic bacteria and cyanobacteria population. Chl a was positively correlated with DMSPp and DMS in the surface waters and the upper water of the basin, whereas significant negative correlations were found between DMS and nutrients (dissolved inorganic nitrogen [DIN], phosphorus, and silicate) in the inner shelf of the Bering Sea. DMS microbial consumption was approximately 6.26 times faster than the DMS sea‐air exchange, demonstrating that the major loss of DMS in the surface water occurred through biological consumption relative to evasion into the atmosphere. Average sea‐to‐air DMS fluxes were estimated to be 4.66 μmol/(m2·d), and consequently oceanic biogenic DMS emission had a dominant contribution to the sulfur budget over the observational area.

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Section: Resultssupporting

confidence: 79%

Section: Biological Process Incubationssupporting

confidence: 78%

Occurrence and Turnover of Biogenic Sulfur in the Bering Sea During Summer

Wang

Yang

et al. 2017

JGR Oceans

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“…On the basis of results reported by Liu, Lin, He, et al (), Liu, Lin, Wang, et al (), and Li (), our investigation was conducted during three summer cruises to the Bering Sea, one covering the cold year (2012) and two covering warm years (2014 and 2016). Summer seawater temperature in the BSBUW averaged 6.90 ± 0.62 °C in 2012, 8.52 ± 2.34 °C in 2014, and 8.70 ± 2.14 °C in 2016, respectively, and showed an increasing pattern from cold to warm years.…”

Section: Resultsmentioning

confidence: 99%

Spatial and Interannual Variability in Distributions and Cycling of Summer Biogenic Sulfur in the Bering Sea

Wang

et al. 2019

Geophysical Research Letters

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In the Bering Sea, summer dimethylsulfide (DMS) and dimethylsulfoniopropionate (DMSPd and DMSPp) exhibited substantial spatial and interannual variations during 2012–2016, encompassing both cold (2012) and warm (2014 and 2016) temperature regimes. Summer average chlorophyll a, DMS, and DMSPd concentrations in the upper water increased significantly, paralleling a 1.6 °C increase in seawater temperature. High DMS/DMSPp regions in the upper 50 m at 177°E–175°W extended both north‐eastward and south‐westward, which were associated with elevated phytoplankton biomass and concurrent proportion of dinoflagellates in phytoplankton community in warm years. Simultaneously, these patches spread vertically throughout the upper 200 m in warm years, which corresponded with rapid bacteria consumption and abundant small copepods at the 50–200‐m layer in 2014 and 2016. Starting from 4.88 μmol/(m2 day), summer average DMS fluxes increased sharply by threefold to fivefold in response to a warming of 2.8 °C in the surface water during 2012–2016.

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