Journal of Chemical Ecology

, Volume 26, Issue 8, pp 1833–1847

Salmon Lice, Lepeophtheirus salmonis, Exhibit Specific Chemotactic Responses to Semiochemicals Originating from the Salmonid, Salmo salar

  • Gregor J. Devine
  • Anna Ingvarsdóttir
  • William Mordue
  • Alan W. Pike
  • John Pickett
  • Ian Duce
  • A. Jennifer Mordue (Luntz)
Article

Abstract

Adult male salmon lice, Lepeophtheirus salmonis, displayed kinetic and rheotactic behavioral responses to seawater conditioned with the Atlantic salmon, Salmo salar. The kinetic response was initiated by a range of skin, mucus, and flesh preparations from salmon and from a nonsalmonid, the turbot Scophthalmus maximus. Kinesis was quantified by digitally recording the movement of individual lice and by measuring both speed and distance traveled. A directional response, measured in Y-tube assays, was seen in the presence of salmon-conditioned water, but not of turbot-conditioned water. Thus, there is strong evidence that chemical signals are used by salmon lice to mediate host-finding behavior. It is hypothesized that, although salmon lice are excited by the presence of fish-derived semiochemicals, there is a salmonid-specific signal that mediates their positive rheotactic response to a host.

Salmon turbot salmon lice Lepeophtheirus salmonis behavior semiochemicals kinesis rheotaxis 

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

Copyright information

© Plenum Publishing Corporation 2000

Authors and Affiliations

  • Gregor J. Devine
    • 1
  • Anna Ingvarsdóttir
    • 1
  • William Mordue
    • 1
  • Alan W. Pike
    • 1
  • John Pickett
    • 3
  • Ian Duce
    • 4
  • A. Jennifer Mordue (Luntz)
    • 5
  1. 1.Department of ZoologyUniversity of AberdeenAberdeenUK
  2. 2.Biological & Ecological Chemistry Dept.IACR-Rothamsted, HarpendenHerts
  3. 3.Biological and Ecological Chemistry DepartmentIACR-Rothamsted, HarpendenHertsUK
  4. 4.Department of Life SciencesUniversity of NottinghamNottinghamUK
  5. 5.Department of ZoologyUniversity of AberdeenAberdeenUK

Personalised recommendations