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Antarctic Research Series

 

Keywords

  • Ecology—Research—Antarctica—Antarctic Peninsula Region

Index Terms

  • 4207 Oceanography: General: Arctic and Antarctic oceanography
  • 4227 Oceanography: General: Diurnal, seasonal, and annual cycles
  • 4815 Oceanography: Biological and Chemical: Ecosystems, structure and dynamics
  • 4855 Oceanography: Biological and Chemical: Plankton

Article

ANTARCTIC RESEARCH SERIES, VOL. 70, PP. 357-371, 1996

Factors affecting distribution and abundance of zooplankton, with an emphasis on Antarctic krill, Euphausia superba

L. B. Quetin, R. M. Ross, T. K. Frazer, and K. L. Haberman

Variation in the abundance and distribution of zooplankton is an inherent characteristic of pelagic marine ecosystems. In this chapter, we discuss how patterns of abundance and distribution arc affected by the life cycle characteristics of some of the predominant macrozooplankton west of the Antarctic Peninsula. Because of the importance of Antarctic krill, Euphausia superba, within this region, some aspects of its ecology are given special attention. Of particular relevance to current hypotheses is the association of krill and sea ice, and new evidence is presented for winter habitat segregation between adult and larval stages. Subsequent discussion focuses on strategies for winter survival, and variation in recruitment. Finally, we discuss the effects of abiotic factors such as frontal shifts, and biotic factors such as food composition, as they relate to abundance and distribution of zooplankton.

Citation: Quetin, L. B., R. M. Ross, T. K. Frazer, and K. L. Haberman (1996), Factors affecting distribution and abundance of zooplankton, with an emphasis on Antarctic krill, Euphausia superba, in Foundations for Ecological Research West of the Antarctic Peninsula, Antarct. Res. Ser., vol. 70, edited by E. E. Hofmann, R. M. Ross, and L. B. Quetin, pp. 357–371, AGU, Washington, D. C., doi:10.1029/AR070p0357.

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