, Volume 483, Issue 1–3, pp 225–230 | Cite as

The potential use of PIT telemetry for identifying and tracking crayfish in their natural environment

  • Damian H. Bubb
  • Martyn C. Lucas
  • Timothy J. Thom
  • Philip Rycroft


A method for tracking crayfish and other benthic animals in rivers and streams, based on passive integrated transponder (PIT) technology, using a portable detector was investigated. The effect of implanting crayfish with PIT tags and the efficiency of the PIT tag detector system at locating tags is described. In a laboratory study 30 signal crayfish Pacifastacus leniusculus (>33.7 mm carapace length) were internally implanted with PIT tags (12-mm long×2.1-mm diameter) and 30 crayfish matched for size and sex were kept as controls and maintained for 6 months. Tagging had no significant effect on survival, moulting or growth of crayfish, and tag retention was 100%. The reader unit consists of an antenna coil mounted on a pole and designed to be moved over the streambed to search for tagged crayfish. Efficiency testing indicated that more than 80% of tags were identified and located when hidden within different stream microhabitats.

passive integrated transponder Pacifastacus leniusculus Crustacea streams tagging telemetry 


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Copyright information

© Kluwer Academic Publishers 2002

Authors and Affiliations

  • Damian H. Bubb
    • 1
  • Martyn C. Lucas
    • 1
  • Timothy J. Thom
    • 2
  • Philip Rycroft
    • 3
  1. 1.Department of Biological SciencesUniversity of Durham, Science LaboratoriesDurhamU.K.
  2. 2.Yorkshire Dales National Park Authority, ColvendNorth YorkshireU.K
  3. 3.UKID Systems Ltd.LancashireU.K

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