J Integr Plant Biol. ›› 2003, Vol. 45 ›› Issue (4): 390-398.

• Research Articles •

### Phytoplankton in Prydz Bay and Its Adjacent Sea Area of Antarctica During the Austral Summer (1998/1999)

ZHU Gen-Hai, NING Xiu-Ren, CAI Yu-Ming, LIU Zi-Lin

• Published:2003-04-15

Abstract:

The cell density, species composition and distribution of phytoplankton, and their relations to environmental factors in Prydz Bay and its adjacent sea area, Antarctica (69°-77° E, 62°-70° S) during the austral summer of 1998/1999 were investigated. A total of 48 taxa belonging to 21 genera of phytoplankton in the sea area were identified. The average cell density of phytoplankton was 22.46×103 cells/dm3, of which diatoms were predominant (84.51%). The highest cell density of phytoplankton occurred in Prydz Bay and the adjacent continental shelf where the average cell density was 46.03×103 cells/dm3. The lowest cell density (3.34×103 cells/dm3) occurred in deep sea area. The dominant species of phytoplankton was Fragilariopsis curta. The vertical distribution of phytoplankton density was highest in the upper part of 0-50 m depth, lower in 100 m and lowest in 150 m. The species composition and cell density of phytoplankton were influenced by water circulation. The cell density was positively correlated with water temperature and salinity, and negatively correlated with the concentration of nutrients. Key words: phytoplankton; distribution; Prydz Bay and its and adjacent sea area; Antarctica

1988/1999年南极普里兹湾邻近海域浮游植物的分布特征

（国家海洋局海底科学重点实验室，国家海洋局海洋动力过程与卫星海洋学重点实验室，国家海洋局第二海洋研究所，杭州310012）

Editorial Office, Journal of Integrative Plant Biology, Institute of Botany, CAS
No. 20 Nanxincun, Xiangshan, Beijing 100093, China
Tel: +86 10 6283 6133 Fax: +86 10 8259 2636 E-mail: jipb@ibcas.ac.cn