Vertical distribution of oceanic tintinnid (Ciliophora: Tintinnida) assemblages from the Bering Sea to Arctic Ocean through Bering Strait
Vertical distribution of oceanic tintinnid (Ciliophora: Tintinnida) assemblages from the Bering Sea to Arctic Ocean through Bering Strait
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DOI:
10.1007/s00300-019-02585-2
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发表时间:
2019-09
期刊:
影响因子:
1.7
通讯作者:
Chaofeng Wang;Zhiqiang Xu;Cheng-gang Liu;Haibo Li;Chen Liang;Yuan Zhao;Guangtao Zhang;Wuchang Zhang;T. Xiao
中科院分区:
文献类型:
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作者:
Chaofeng Wang;Zhiqiang Xu;Cheng-gang Liu;Haibo Li;Chen Liang;Yuan Zhao;Guangtao Zhang;Wuchang Zhang;T. Xiao
Knowledge on the distribution of plankton species is fundamental to understand planktonic ecosystem structure and function. To understand the difference of tintinnid vertical distribution pattern in the Bering Sea and the Arctic Ocean and their connection through the Bering Strait, we reported the vertical distribution of tintinnid assemblages from the Bering Sea to the Arctic Ocean. Bering Sea-dominant species (Codonellopsis frigida,Ptychocylis obtusa,Parafavellaspp.,Acanthostomella norvegica) had abundance peak in the upper 50 m. In the Arctic Ocean, abundance peak of dominant species (P. urnula) occurred in surface and deep chlorophyllamaximum layers.Salpingella acuminataandS. faureioccurred from 50 to 80 m in Bering Sea and Arctic Ocean oceanic waters. Bering Strait-dominant species (P. acuta,Parafavellaspp.,A. norvegica) occurred from the surface to the bottom. BothS. acuminataandS. faureiwere absent in Bering Strait at depths shallower than 120 m. Bering Sea-dominant species (C. frigida,P. obtusa,Parafavellaspp.,A. norvegica) disappeared successively northward.Ptychocylis urnulaoccurred in the northern part of Bering Strait at depths exceeding 50 m. The size ofP. acuta(only occurring in Bering Strait) was between that ofP. urnulaandP. obtusa. Bering Sea-dominant species had wide temperature but narrow salinity ranges (32.7–33.3); their successive northward disappearance might reflect difference in the salinity tolerance.Ptychocylis urnulahad a wide salinity but narrow temperature range in the Arctic Ocean. Its distribution through Bering Strait is likely limited by temperature (− 1.8 to 1.2 °C). The vertical distribution ofS. acuminataandS. faureimight correlate with depth. Our results contribute to a better understanding of the vertical distribution of the microbial food web and serve as a baseline for future studies on the pelagic community change in the Arctic.