Impacts of Atlantic water intrusion on interannual variability of the phytoplankton community structure in the summer season of Kongsfjorden, Svalbard under rapid Arctic change

Zhang, Yang; Zhuang, Yanpei; Ji, Zhongqiang; Chen, Jianfang; Bai, Youcheng; Wang, Bin; Jin, Haiyan

doi:10.1016/j.marenvres.2023.106195

Marine Environmental Research

2023

DOI: 10.1016/j.marenvres.2023.106195

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Impacts of Atlantic water intrusion on interannual variability of the phytoplankton community structure in the summer season of Kongsfjorden, Svalbard under rapid Arctic change

Yang Zhang,

Yanpei Zhuang,

Zhongqiang Ji

et al.

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2024

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Cited by 2 publications

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Responses to phytoplankton community succession and expression of key functional genes in plateau lakes under 17β-estradiol interference

Huang,

Shen,

Feng

et al. 2024

Journal of Hazardous Materials

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Responses to phytoplankton community succession and expression of key functional genes in plateau lakes under 17β-estradiol interference

Huang,

Shen,

Feng

et al. 2024

Journal of Hazardous Materials

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The characteristics of nutrient distribution and influencing factors in the Chukchi Plateau and adjacent waters

Ni,

Zhang,

Zhang

et al. 2024

Front. Mar. Sci.

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The Arctic is one of the regions under the most dramatic climate change. Global warming has led to elevated freshwater inflow into the western Arctic Ocean and significantly altered nutrient structure and biogeochemical cycling. In this work, inorganic dissolved nutrients in the Chukchi Plateau (CP) and adjacent regions were investigated to further understand their characteristics and influencing factors. Results showed that relatively high nutrient concentrations occurred in the water masses with salinity >32 psu, especially there was a nutrient-rich layer influenced by Winter Pacific Water in the water column (15.10±1.96, 2.23±0.26, and 23.46±6.64 µmol/L for DIN, PO43– and Si(OH)4, respectively). Contrarily, lower nutrient concentrations occurred in the mixing water of the upper layer (1.76±1.04, 1.15±0.16 and 3.76±2.29 µmol/L for DIN, PO43– and Si(OH)4, respectively) with a low DIN/P ratio (1.44±0.59), suggesting DIN has become the potentially biological limiting factor. Furthermore, the freshening and deepening of the upper layer driven by the Beaufort Gyre has hindered the nutrient transport from underlying layer into the upper layer. A maximum chla was observed at 36‒75 m water depth, and the phytoplankton biomass decreased from the western to the eastern CP, accompanied by a decreased contribution of micro-sized chla but an increased contribution of small-sized chla (74.0±0.1%). The phytoplankton resource use efficiency for DIN was estimated as (3.2±4.6)×10-3, which was primarily influenced by the physicochemical parameters of water and also largely regulated by the size structure of phytoplankton.

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Impacts of Atlantic water intrusion on interannual variability of the phytoplankton community structure in the summer season of Kongsfjorden, Svalbard under rapid Arctic change

Cited by 2 publications

References 43 publications

Responses to phytoplankton community succession and expression of key functional genes in plateau lakes under 17β-estradiol interference

Responses to phytoplankton community succession and expression of key functional genes in plateau lakes under 17β-estradiol interference

The characteristics of nutrient distribution and influencing factors in the Chukchi Plateau and adjacent waters

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