ABUNDANCE AND DISTRIBUTION OF TINTINNID CILIATES IN AN ICE EDGE ZONE DURING THE AUSTRAL AUTUMN

被引：27

作者：

BUCK, KR

GARRISON, DL

HOPKINS, TL

机构：

[1] Institute of Marine Sciences, University of California

[2] Monterey Bay Aquarium Research Institute, Pacific Grove, CA, 93950

[3] Department of Marine Sciences, University of South Florida, St. Petersburg

来源：

ANTARCTIC SCIENCE | 1992年 / 4卷 / 01期

关键词：

ANTARCTICA; ICE-EDGE; MICROZOOPLANKTON; TINTINNIDS; WEDDELL SEA;

D O I：

10.1017/S0954102092000038

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Tintinnid ciliates were present throughout the upper (100m) water column of the ice-edge zone when sampled in autumn 1986 in the Weddell Sea. Biomass ranged from 0.02-mu-gC l-1 under the sea-ice to 1.3-mu-gC l-1 in the ice-free water column. Cymatocylis, Codonellopsis, Laackmaniella and a small Salpingella were the most abundant and/or largest biomass contributors. The under ice assemblage was characterized by low biomass and dominated by small species (Salpingella and Codonellopsis); the ice edge stations were dominated by these same taxa but in higher abundances while the open water assemblage was characterized by high biomass and dominated by Cymatocylis, the largest taxa. All taxa exhibited maximum concentrations in the upper 50m of the water column. Both krill and salps grazed upon the Cymatocylis and Codonellopsis without preference in both the ice covered and open water regimes.

引用

页码：3 / 8

页数：6

共 31 条

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