Marine Biology

, Volume 138, Issue 1, pp 87–92 | Cite as

Survival and bioturbation of the amphipod Monoporeia affinis in sulphide-rich sediments

  • H. Modig
  • E. Ólafsson

Abstract

Laboratory experiments were conducted to investigate the survival rate of Monoporeia affinis in sulphide-rich sediment with oxic overlying water, and the effect of amphipod bioturbation on sulphide and oxygen profiles. As long as the oxygen content in the water is high, the amphipods seem to avoid quite high concentrations (>200 μmol l−1) of sulphide in the sediment by creating microhabitats where sulphide is rapidly oxidised. In cores with amphipods, a decrease of sulphide concentration was found in upper layers, while an increase of sulphide was found in deeper layers. Aggregation of amphipods generated pockets of light-brown sediment, characterised by high oxygen concentrations and no sulphide, and their depth was clearly dependent on amphipod density. This indicates that M. affinis has a potential to recolonise sulphide-rich sediments, devoid of macroscopic life, after the overlying water column has become oxygenated.

Keywords

Oxygen Survival Rate Water Column Oxygen Concentration Laboratory Experiment 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2001

Authors and Affiliations

  • H. Modig
    • 1
  • E. Ólafsson
    • 1
  1. 1.Department of Zoology, University of Stockholm, 10691 Stockholm, Sweden e-mail: helene.modig@zoologi.su.seSE

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