台湾海峡异养性鞭毛虫生态研究I：1997年夏季南部海域鞭毛虫丰度及生物量分布

采用AO染色、荧光计数方法，报道1997年8月台湾海峡南部（117°5’～119°9’E,22°4’～24°3’N）海域异养性鞭毛虫丰度、生物量及其分布.结果表明，调查海域各测站异养性鞭毛虫丰度范围391×103～1846×10

Studies on HeterotrophicNanoflagellates in Taiwan Strait I: Distribution of Abundance and Biomass of HNF inSouthern Waters, Summer of 1997

Abundance and biomass of heterotrophic nanoflagellates (HNF) in southern Taiwan Strait (117°5’～119°9’E, 22°4’～24°3’N) were firstly investigated in August, 1997 and reported. Based on analysis of 103 samples collected from the waters, the abundance of HNF were in the range 391×103～1 846×103 cell*L-1, average 949×103 cell*L-1, with 96.2% of cell size composed of 2～22 μm in all HNF met in the samples. These abundance correlated to carbon contents was 3.64～16.96 μg*C*L-1, average 8.45 μg*C*L-1. The highest biomass of HNF was found in southern waters where cell amount was higher of 3～5 folds than other waters and near 1 fold than average biomass in whole investigated areas. The HNF occurred mainly between 0～30 m water layers in vertical distribution. In-situ continuous observation in two anchored stations of HNF indicated 24-hour rhythm in diurnal amount variation but the difference of peak time, with a delay of about 6 hours between the two stations.