Document of bibliographic reference 64722

BibliographicReference record

Type

Bibliographic resource

Type of document

Journal article

BibLvlCode

AS

Title

The distribution of zooplankton in an Antarctic fjord at South Georgia during summer and winter

Abstract

Zooplankton was sampled intensively with an RMT 1+8M system in the fjord of Cumberland East Bay, South Georgia during late winter 1983 and summer 1987. In summer, biomass was highest in the surface 20 m, reaching 142 g dw/1000 m3. Copepods dominated the zooplankton comprising 96-99% by numbers, of which 80-90% occurred in the top 100 m of the 265-m water column. The small clausocalanid Drepanopus forcipatus was particulary abundant. With increasing depth the proportion of non-copepod biomass, principally Mysidacea and Amphipoda increased significantly. Biomass throughout the water column in winter was generally 4-5 times lower than in summer although again copepods, and in particular D. forcipatus and members of the Metridinidae, still numerically dominated the plankton. Biomass levels were some 2-3 times greater than those found in Antarctic oceanic regions but were comparable with estimates from some boreal fjords. The mixture of neritic and oceanic species encountered, and the seasonal presence of some gelatinous zooplankton, particularly ctenophores, appears typical of the community structure of many fjord ecosystems.

WebOfScience code

https://www.webofscience.com/wos/woscc/full-record/WOS:A1989CE36300006

Bibliographic citation

Ward, P. (1989). The distribution of zooplankton in an Antarctic fjord at South Georgia during summer and winter. Antarctic Science 1(2): 141-150. dx.doi.org/10.1017/s0954102089000210

Topic

Marine

Is peer reviewed

true

Access rights

open access

Is accessible for free

true