Common Carp Implanted with Prostaglandin F Release a Sex Pheromone Complex that Attracts Conspecific Males in Both the Laboratory and Field

Hangkyo Lim, Peter W. Sorensen

Research output: Contribution to journalArticlepeer-review

15 Scopus citations

Abstract

When ovulated, female fish of many species are known to release a F-prostaglandin-derived sex pheromone that attracts conspecific males. Recently, this pheromone was identified in the common carp as a mixture of prostaglandin F (PGF ) and unidentified body metabolites, which we termed a 'pheromone complex'. The present study sought to test the activity of this pheromone complex in the field by developing a system using carps implanted with PGF as pheromone donors. An initial experiment determined that osmotic pumps that delivered up to 0. 4 mg of PGF per hour could be implanted into carp without any apparent effects on their health. A second experiment found that PGF -implanted male and female carp released biologically relevant (and equivalent) quantities of PGF , along with two of its seemingly inactive metabolites, for up to 2 weeks. Laboratory experiments demonstrated that the odor of PGF -implanted carp was highly attractive to male conspecifics, and included necessary body metabolites; it attracted males as strongly as ovulated carp odor, and much better than PGF alone. Finally, a field test demonstrated that PGF -implanted female carp attracted mature male, but not female carp, from a distance of 20 m. This is the first demonstration of the activity of a PGF -based pheromone in a natural environment and confirms the use of a PGF-pheromone complex in the carp. We suggest that the implant technique may be useful in future studies of how PGF pheromones function and could be further developed to attract invasive fish for use in control.

Original languageEnglish (US)
Pages (from-to)127-134
Number of pages8
JournalJournal of Chemical Ecology
Volume38
Issue number2
DOIs
StatePublished - Feb 2012

Bibliographical note

Funding Information:
Acknowledgements This study was funded by the Invasive Animals Cooperative Research Centre (Canberra, Australia). Arrangements for field tests were made by the Ramsey-Washington Metro Watershed District (Minnesota, USA). P. Bajer, C. Chizinski, E. Coil, E. Fox, C. Johnson, J. Maher, J. Osborne, J. Silbernagel, J. Sloan, M. J. Travaline, and J. Wein provided invaluable assistance in the laboratory and field.

Copyright:
Copyright 2012 Elsevier B.V., All rights reserved.

Keywords

  • Cyprinus carpio
  • Hormonal pheromone
  • Integrated pest management
  • Invasive species
  • Liquid chromatography-mass spectrometry (LC-MS/MS)
  • Pheromone complex
  • Prostaglandin metabolism
  • Synergism
  • Toxicity

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