Ammonia Volatilization and Absorption by Terrestrial Gastropods: A Comparison between Shelled and Shell-Less Species

  title={Ammonia Volatilization and Absorption by Terrestrial Gastropods: A Comparison between Shelled and Shell-Less Species},
  author={Robert A. Loest},
  journal={Physiological Zoology},
  pages={461 - 469}
  • R. A. Loest
  • Published 1 October 1979
  • Environmental Science
  • Physiological Zoology
The volatilization of gaseous ammonia, NH₃, by terrestrial gastropods was examined in 11 shelled and four shell-less pulmonate species, and in one shelled prosobranch. All shelled species evolved gaseous NH₃ at rates up to 29 μmoles NH₃/g live wt/day; and most rates were between 1.0 and 0.01 μmole NH₃/g live wt/day. No slugs volatilized NH₃, but they did absorb up to 17.9 μmoles NH₃/g live wt/h from the atmosphere. The epidermal mucus of slugs appears to be responsible for absorption of NH… 
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