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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 biomass 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 hy-drographical dynamic pro
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 cells / dm3, with an average of 949 × 103 cells / 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 nitrogen and phosphorus nutrients of the water are lower than previous investigations, which The biomass of HNF is higher than the southern waters, where the 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 hy-drogr aphical dynamic pro