极地研究

极地研究 ›› 2002, Vol. 13 ›› Issue (2-English): 129-136.

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The relationship between cyanobacteria and environmental factors in the Bering Sea

 Xiao Tian1, Sun Song1, Zhang Wuchang1, Li Chaolun1 and Jin Mingming2   

  1. 1 Key Laboratory of Marine Ecology and Environmental Sciences, Institute of Oceanology, Chinese Academy of Science, Qingdao 266071, China;
    2 Second Institute of Oceanography, State Oceanic Administration, Hangzhou 310012, China
  • 出版日期:1952-06-30 发布日期:1952-06-30
  • 通讯作者: Xiao Tian

The relationship between cyanobacteria and environmental fac-tors in the Bering Sea

Xiao Tian1, Sun Song1, Zhang Wuchang1, Li Chaolun1 and Jin Mingming2   

  1. 1 Key Laboratory of Marine Ecology and Environmental Sciences, Institute of Oceanology, Chinese Academy of Science, Qingdao 266071, China;
    2 Second Institute of Oceanography, State Oceanic Administration, Hangzhou 310012, China
  • Online:1952-06-30 Published:1952-06-30
  • Contact: Xiao Tian

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摘要：

During the first Chinese Scientific Expedition to the Arctic in July - September 1999, cyanobacteria in the Bering Sea were measured by epifluorescence microscopy. Cyanobacterial abundance varied from 0 to 7.93 × 103 cell/ml and decreased along a northerly directed latitudinal gradient in horizontal distribution. Cyanobacteria did not occur at station Bl - 12 (north of 60 °N). Vertically, high cya-nobacterial abundance appeared in the upper 25 - 50 m and decreased rapidly below 50 m. There were no cyanobacteria at the 150 m. Seawater temperature and NH4+-N are suggested to affect the distribution of cyanobacteria.

关键词: cyanobacteria, biomass, Bering Sea

Abstract:

During the first Chinese Scientific Expedition to the Arctic in July - September 1999, cyanobacteria in the Bering Sea were measured by epifluorescence microscopy. Cyanobacterial abundance varied from 0 to 7.93 × 103 cell/ml and decreased along a northerly directed latitudinal gradient in horizontal distribution. Cyanobacteria did not occur at station Bl - 12 (north of 60 °N). Vertically, high cya-nobacterial abundance appeared in the upper 25 - 50 m and decreased rapidly below 50 m. There were no cyanobacteria at the 150 m. Seawater temperature and NH4+-N are suggested to affect the distribution of cyanobacteria.

Key words: cyanobacteria, biomass, Bering Sea