Polar Biology

, Volume 3, Issue 4, pp 185–189 | Cite as

Distribution of Antarctic benthic foraminifers settling on the pecten Adamussium colbecki

  • L. S. Mullineaux
  • T. E. DeLaca
Article

Summary

Some benthic foraminifers in Explorers Cove, Antarctica, occur both in the sediment and on hard objects such as rocks and invertebrates. The abundances of four of these foraminiferal species have been measured from sediment samples and from the upper valve of the pecten Adamussium colbecki. The two calcareous species, Cibicides refulgens and Rosalina globularis were more abundant on the pecten shells than the sediment: the agglutinated species, Trochammina ochracea and T. malovensis were more abundant in the sediment. A zone of low foraminiferal density was observed around the outer margin of each shell, but no evidence of an influence of pecten feeding currents on the foraminiferal distributions was found. The size of the pecten shell influenced the density of epizoic foraminifers colonizing it; large shells (area >43 cm2) supported much higher densities than smaller ones.

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Copyright information

© Springer-Verlag 1984

Authors and Affiliations

  • L. S. Mullineaux
    • 1
  • T. E. DeLaca
    • 1
  1. 1.Scripps Institution of Oceanography, A-002University of CaliforniaLa JollaUSA

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