Phytoplankton composition and its ecological effect in subsurface cold pool of the northern Bering Sea in summer as revealed by HPLC derived pigment signatures

Zhuang, Yanpei; Jin, Haiyan; Li, Hongliang; Chen, Jianfang; Wang, Bin; Chen, Fajin; Bai, Youcheng; Lu, Yinghua; Tian, Shichao

doi:10.1007/s13131-014-0495-5

Cited by 17 publications

(8 citation statements)

References 27 publications

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“…Analysis was conducted on an HPLC system (600, Waters, Milford, MA, USA) equipped with a C8 column (Eclipse XDB, Agilent Technologies, Santa Clara, CA, USA; 150 × 4.6 mm, 3.5 μm) and a photodiode array detector (2998, Waters). Detailed information about the pigment analysis methods is provided in Zhuang et al (2014). Pigment standards were purchased from DHI (Hørsholm, Denmark).…”

Section: Methodsmentioning

confidence: 99%

Phytoplankton Community Structure at Subsurface Chlorophyll Maxima on the Western Arctic Shelf: Patterns, Causes, and Ecological Importance

et al. 2020

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Subsurface chlorophyll maxima (SCM) layers are becoming more important to the Arctic shelf ecosystem as phytoplankton growing season and ice‐free water increase. We measured size‐fractionated pigments and environmental variables on the western Arctic shelf during the open‐water season in 2014, to study the spatial pattern and mechanisms of the phytoplankton community at the SCM. The SCM layers accumulated approximately 50% of the chlorophyll a (Chl a) standing stock in the water column, and the contribution increased to >70% for high‐biomass areas, suggesting the biological importance of the summer SCM in the shelf ecosystem. The spatial difference in phytoplankton biomass was caused mainly by bioavailable nitrogen concentrations, and the spatial difference in diatom size may be the result of differences in predominant species. High biomass and large diatoms dominated in the SCM layers, making the south and north of the Chukchi shelf a biological hotspot for the ecosystem's food chain and benthos of the western Arctic shelf in summer.

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Section: Methodsmentioning

confidence: 99%

Phytoplankton Community Structure at Subsurface Chlorophyll Maxima on the Western Arctic Shelf: Patterns, Causes, and Ecological Importance

et al. 2020

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“…Carotenoids were measured following the method of Van Heukelem and Thomas [] according to the procedure described in detail in Zhuang et al . []. The high‐performance liquid chromatography (HPLC) (Waters 600) system was equipped with an Eclipse SDB C8 column (150 mm × 4.6 mm, 3.5 µm) and a photodiode array detector (Waters 2998).…”

Section: Methodsmentioning

confidence: 99%

“…Samples for carotenoid (fucoxanthin, peridinin, and 19'-hexanoyloxyfucoxanthin) measurements were from 25 and 34 stations in spring and summer of 2011, respectively, and they were obtained on GF/F filters and stored at À80°C until analysis. Carotenoids were measured following the method of Van Heukelem and Thomas [2001] according to the procedure described in detail in Zhuang et al [2014]. The high-performance liquid chromatography (HPLC) (Waters 600) system was equipped with an Eclipse SDB C8 column (150 mm × 4.6 mm, 3.5 μm) and a photodiode array detector (Waters 2998).…”

Section: Methodsmentioning

confidence: 99%

Spatiotemporal variations of phytoplankton in the East China Sea and the Yellow Sea revealed by lipid biomarkers

Duan

et al. 2016

JGR Biogeosciences

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The East China Sea (ECS) and the Southern Yellow Sea (SYS) ecosystem is undergoing dramatic changes, but the spatiotemporal patterns and forcing mechanisms of phytoplankton variations remain understudied. Phytoplankton lipid biomarkers are useful proxies for productivity and community structure changes, and they were measured in suspended particles of more than 81 sites from spring and summer of 2011 in the ECS and SYS. In spring, the concentrations of brassicasterol (4.7-127 ng L À1 ) and dinosterol (0.7-37 ng L À1 ) were markedly higher in the northern and central SYS, while C 37 alkenones (0-15 ng L À1 ) were detected at only seven sites in the ECS. In summer, brassicasterol (25.3-1178 ng L À1 ) and dinosterol (0-125 ng L À1 ) showed high values off the Changjiang River Estuary (CRE), while C 37 alkenones (0-410 ng L À1 ) had high values in the northwest and central SYS. The mean concentrations of the three lipid biomarkers in summer were 3 to 61 times higher than those in spring. Spatiotemporal patterns of biomarkers reveal higher ratios of diatom/dinoflagellate and diatom/haptophyte in higher productivity areas, off the CRE in summer and the northern and central SYS in spring. This study validates the applicability of brassicasterol, dinosterol, and alkenones as proxies of productivity and community structure of the three phytoplankton taxa: diatoms, dinoflagellates, and haptophytes. The results indicate that nutrients (in summer) and turbidity-induced photosynthetic available radiation (in spring) play important roles in regulating spatiotemporal variations of phytoplankton in the ECS and SYS.

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“…Nutrient and organic matter inputs through the Yukon River may play an important role in biogeochemical cycles and may sustain primary productivity in the region off the Yukon River estuary. The phytoplankton community in the region of the Yukon River runoff was dominated by diatoms and chrysophytes at relative average contributions of 72% and 15%, respectively, whereas chlorophytes, dinoflagellates, and cryptophytes, on average, contributed 5%, 2%, and 2%, respectively, to the total Chl a (Zhuang et al, ). Diatoms overwhelmingly dominated the algal abundance in the whole seawater column of the Yukon‐River‐influenced region (72% in the surface layer, 91% in the depth of chlorophyll maximum, and 92% at the bottom).…”

Section: Resultsmentioning

confidence: 99%

“…Indeed, DMS production rates reached up to 18.5 n M /d, but DMS remained low in BSWC, varying from 0.05 to 0.95 n M , with an average of 0.45 n M . According to the study by Zhuang et al (), the distributions of chlorophyll derivatives indicate low zooplankton grazing rates when the cold pool emerges in the summer. Thus, low DMS levels in the cold water may primarily result from high rates of DMS consumption (13.2 n M /d) caused by the abundant bacteria.…”

Section: Resultsmentioning

confidence: 99%

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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Phytoplankton composition and its ecological effect in subsurface cold pool of the northern Bering Sea in summer as revealed by HPLC derived pigment signatures

Cited by 17 publications

References 27 publications

Phytoplankton Community Structure at Subsurface Chlorophyll Maxima on the Western Arctic Shelf: Patterns, Causes, and Ecological Importance

Phytoplankton Community Structure at Subsurface Chlorophyll Maxima on the Western Arctic Shelf: Patterns, Causes, and Ecological Importance

Spatiotemporal variations of phytoplankton in the East China Sea and the Yellow Sea revealed by lipid biomarkers

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

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