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Sterilization of sea lampreys ( Petromyzon marinus ) by immersion in an aqueous solution of bisazir

Lee H. Hanson
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Abstract

Groups of sea lamprey ( Petromyzon marinus ) eggs fertilized by males previously immersed in an aqueous solution of p , p -bis(1-aziridinyl)- N -methylphosphinothioic amide (bisazir) at concentrations of 10–100 mg/L produced fewer normal, live prolarvae after 15–17 d of incubation than did groups of eggs fertilized by normal males. Mortality of embryos or prolarvae was nearly 100% in groups of eggs fertilized by males that had been immersed in a 50 mg/L solution of bisazir for 4 h or in a 100 mg/L solution for 2 h. The immersion technique appears to be an efficient method of sterilizing large numbers of male sea lampreys for use in a proposed sterile-male-release program. Key words : sea lamprey, Petromyzon marinus ; pest control, fish control, sterile-male technique, sterilization, chemosterilants, bisazir, Great Lakes

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Canadian Journal of Fisheries and Aquatic SciencesArticle

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Lee H. Hanson. 1981. Sterilization of sea lampreys ( Petromyzon marinus ) by immersion in an aqueous solution of bisazir. https://doi.org/10.1139/f81-172

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