Get access

An in situ system for exposing aquatic invertebrates to contaminated sediments

Authors

  • Mark Crane,

    Corresponding author
    1. School of Biological Sciences, Royal Holloway, University of London, Egham, Surrey TW20 OEX, United Kingdom
    • School of Biological Sciences, Royal Holloway, University of London, Egham, Surrey TW20 OEX, United Kingdom
    Search for more papers by this author
  • Mia Higman,

    1. School of Biological Sciences, Royal Holloway, University of London, Egham, Surrey TW20 OEX, United Kingdom
    Search for more papers by this author
  • Tony Olsen,

    1. School of Biological Sciences, Royal Holloway, University of London, Egham, Surrey TW20 OEX, United Kingdom
    Search for more papers by this author
  • Peter Simpson,

    1. School of Biological Sciences, Royal Holloway, University of London, Egham, Surrey TW20 OEX, United Kingdom
    Search for more papers by this author
  • Amanda Callaghan,

    1. Division of Zoology School of Animal and Microbial Sciences, University of Reading, Whiteknights Reading RG6 6AJ, United Kingdom
    Search for more papers by this author
  • Tom Fisher,

    1. School of Biological Sciences, Royal Holloway, University of London, Egham, Surrey TW20 OEX, United Kingdom
    2. Division of Zoology School of Animal and Microbial Sciences, University of Reading, Whiteknights Reading RG6 6AJ, United Kingdom
    Search for more papers by this author
  • Rania Kheir

    1. School of Biological Sciences, Royal Holloway, University of London, Egham, Surrey TW20 OEX, United Kingdom
    Search for more papers by this author

Abstract

An in situ system was developed for exposing benthic invertebrates directly to contaminated sediments without exposure to natural overlying waters. This system was used to expose fourth instar Chironomus riparius Meigen larvae for 48 h at 13 uncontaminated river sites across southeast England and at sites along the contaminated River Aire in Yorkshire. Recovery of surviving C. riparius from uncontaminated sites was good (>65%) except when indigenous predatory insect larvae were trapped within test systems. Recovery of survivors from the uncontaminated upstream site in the River Aire was also good (mean survival at Gargrave = 70%), but survival at the two contaminated downstream sites was significantly lower (mean survival of 17.5% at Esholt and 10% at Calverley Bridge). This study has shown that sediments can be isolated from overlying water and effectively bioassayed in situ.

Get access to the full text of this article

Ancillary