Effect of Feeding a Trumpet Shell, <i>Charonia sauliae</i> with Toxic Starfish

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  • NARITA Hiroko
    Shizuoka Prefectural Institute of Public Health and Environmental Science
  • NARA Masato
    Shizuoka Prefectural Institute of Public Health and Environmental Science
  • BABA Keisuke
    Shizuoka Prefectural Fisheres Experiment Station
  • OHGAMI Hirohisa
    Shizuoka Prefectural Fisheres Experiment Station
  • AI Toshio K.
    Shizuoka Prefectural Fisheres Experiment Station
  • NOGUCHI Tamao
    Laboratory of Marine Biochemistry, Faculty of Agriculture, University of Tokyo
  • HASHIMOTO Kanehisa
    Laboratory of Marine Biochemistry, Faculty of Agriculture, University of Tokyo

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Other Title
  • ボウシュウボラにおけるテトロドトキシン毒化試験
  • ボウシュウボラ ニ オケル テトロドトキシン ドクカ シケン

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Description

In order to elucidate the mechanism involved in the toxification of trumpet shell, Charonia sauliae, with tetrodotoxin (TTX), nontoxic trumpet shells were fed with toxic specimens of a starfish, Astropecten polyacanthus, for one to four weeks. All the digestive glands of the trumpet shells became toxic after one week of feeding. The accumulation/administration value (percent) of TTX was 33% on average, and the total amount of accumulated toxin tended to increase with the amount administered.<br>It was found by feeding of the toxified trumpet shells with nontoxic mackerel meat that the accumulated toxin is not readily metabolized in and/or excreted from the trumpet shell.

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