The effects of a synthetic pyrethroid pesticide on some aspects of reproduction in Atlantic salmon (Salmo salar L.)

  • Moore A
  • Waring C
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Abstract

The synthetic pyrethroid pesticide cypermethrin, a known contaminant of tributaries supporting spawning salmonid fish, had a significant sublethal impact upon the pheromonal mediated endocrine system in mature male Atlantic salmon (Salmo salar L.) parr. Previous studies have demonstrated that ovulated female salmon release a priming pheromone in their urine (considered to be the F-type prostaglandin, PGF2α) which is subsequently detected by the olfactory system of mature male salmon parr and results in increased levels of plasma sex steroids and expressible milt. Exposure of mature male parr for a 5 day period to a water concentration of

Author-supplied keywords

  • Atlantic salmon
  • Cypermethrin
  • Olfaction
  • Pyrethroid pesticide
  • Reproduction

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Authors

  • Andrew Moore

  • Colin P. Waring

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