| Lin Yuanshao,Cao Wenqing,Luo Wenxing,Li Shaojing. 2002. Abundance pattern of heterotrophic nanoflagellates in the southern Taiwan Strait. Acta Oceanologica Sinica, (3):415－422 |
| Abundance pattern of heterotrophic nanoflagellates in the southern Taiwan Strait |
| Abundance pattern of heterotrophic nanoflagellates in the southern Taiwan Strait |
| Received:December 10, 2001 Revised:February 05, 2002 |
| DOI： |
| Key words:Heterotrophic nanoflagellates abundance pattern the southern Taiwan Strait |
| 中文关键词: Heterotrophic nanoflagellates abundance pattern the southern Taiwan Strait |
| 基金项目:This work was supported by the National Natural Science Foundation of China under contract Nos 49636220 and 49776308. |
| Author Name | Affiliation | | Lin Yuanshao | Department of Oceanography, Xiamen University, Xiamen 361005, China | | Cao Wenqing | Department of Oceanography, Xiamen University, Xiamen 361005, China | | Luo Wenxing | Department of Oceanography, Xiamen University, Xiamen 361005, China | | Li Shaojing | Department of Oceanography, Xiamen University, Xiamen 361005, China |
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| Abstract: |
| The analysis of 103 samples collected quantitatively from the southern Taiwan Strait (22°4'~24°3'N, 117°5'~119°9'E), China, in August 1997 indicates that the abundance of heterotrophic nanoflagellates (HNF) ranges from 391 to 1 846×103 cell/dm3, with an average of 949×103 cell/dm3,and 96.2% of cells are in size of 2~22 μm in all HNF met in the samples. The HNF cells are 9.83~45.79 μg/dm3 after conversion from cell number to carbon content, with an average of 22.82 μg/dm3.The HNF abundance is relatively low in comparison with other areas. The nitrogen and phosphorus nutrients of the water are lower than previous investigations, which may be caused by the El Nino. The biormass of HNF is higher in southern waters, where cell concentration is 3~5 folds higher than that in other waters, and nearly 2-fold as high as the average of the investigated areas. The HNF is mainly habitat in 0~30 m water layer. Both horizontal and vertical HNF distribution must be influenced by hydrographical dynamic process to a great extent. Continuous in situ observations of HNF indicate the 24 h diurnal rhythm, with two peaks, one in night at one station (Station 9701) and one during the period of 12:00~24:00 at another (Station 9704). The factors controlling the diurnal variation of HNF are unclear, although vertical migration of HNF is obviously. |
| 中文摘要: |
| The analysis of 103 samples collected quantitatively from the southern Taiwan Strait (22°4'~24°3'N, 117°5'~119°9'E), China, in August 1997 indicates that the abundance of heterotrophic nanoflagellates (HNF) ranges from 391 to 1 846×103 cell/dm3, with an average of 949×103 cell/dm3,and 96.2% of cells are in size of 2~22 μm in all HNF met in the samples. The HNF cells are 9.83~45.79 μg/dm3 after conversion from cell number to carbon content, with an average of 22.82 μg/dm3.The HNF abundance is relatively low in comparison with other areas. The nitrogen and phosphorus nutrients of the water are lower than previous investigations, which may be caused by the El Nino. The biormass of HNF is higher in southern waters, where cell concentration is 3~5 folds higher than that in other waters, and nearly 2-fold as high as the average of the investigated areas. The HNF is mainly habitat in 0~30 m water layer. Both horizontal and vertical HNF distribution must be influenced by hydrographical dynamic process to a great extent. Continuous in situ observations of HNF indicate the 24 h diurnal rhythm, with two peaks, one in night at one station (Station 9701) and one during the period of 12:00~24:00 at another (Station 9704). The factors controlling the diurnal variation of HNF are unclear, although vertical migration of HNF is obviously. |
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