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Olfactory Sensitivity of Pacific Lampreys to Lamprey Bile Acids

Summary

Pacific lampreys Lampetra tridentata are in decline throughout much of their historical range in the Columbia River basin. In support of restoration efforts, we tested whether larval and adult lamprey bile acids serve as migratory and spawning pheromones in adult Pacific lampreys, as they do in sea lampreys Petromyzon marinus. The olfactory sensitivity of adult Pacific lampreys to lamprey bile acids was measured by electro-olfactogram recording from the time of their capture in the spring until their spawning in June of the following year. As controls, we tested L-arginine and a non–lamprey bile acid, taurolithocholic acid 3- sulfate (TLS). Migrating adult Pacific lampreys were highly sensitive to petromyzonol sulfate (a component [...]

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robinson et al 2009_olfactory sensitivity of pacific lampreys.pdf
“robinson et al 2009_olfactory sensitivity of pacific lampreys”
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Communities

  • Pacific Lamprey Data Clearinghouse
  • Pacific Region, Region 1
  • US Fish and Wildlife Service (USFWS)

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