Speed of back-swimming of Lymnaea

Kanako Aono, A. Fusada, Y. Fusada, W. Ishii, Y. Kanaya, Mami Komuro, Kanae Matsui, S. Meguro, Ayumi Miyamae, Yurie Miyamae, Aya Murata, Shizuka Narita, Hiroe Nozaka, Wakana Saito, Ayumi Watanabe, Kaori Nishikata, A. Kanazawa, Y. Fujito, R. Okada, K. LukowiakE. Ito

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

The pond snail, Lymnaea stagnalis, can locomote on its back utilizing the surface tension of the water. We have called this form of movement 'back-swimming'. In order to perform this behavior, the snail must flip itself over on its back so that its foot is visible from above. Little is known about the mechanism of this back-swimming. As a first step for the elucidation of this mechanism, we measured the speed of back-swimming of Lymnaea at the different times of the day. They back-swam significantly faster in the morning than just before dark. These data are consistent with our earlier findings on circadian-timed activity pattern in Lymnaea. Lymnaea appear to secrete a thin membrane-like substance from their foot that may allow them to back-swim. To confirm the existence of this substance and to examine whether this substance is hydrophobic or hydrophilic, we applied a detergent onto the foot during back-swimming. A single drop of 1% Tween 20 drifted Lymnaea away that were still kept at the water surface. These results suggest that Lymnaea secrete a hydrophobic substance from their foot that floats to the water surface allowing Lymnaea to back-swim.

Original languageEnglish
Pages (from-to)105-109
Number of pages5
JournalActa biologica Hungarica
Volume59
Issue numberSUPPL.
DOIs
Publication statusPublished - 2008 Jun 3
Externally publishedYes

Keywords

  • Back-swimming
  • Detergent
  • Interface
  • Lymnaea

ASJC Scopus subject areas

  • Biochemistry, Genetics and Molecular Biology(all)
  • Environmental Science(all)
  • Neurology

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  • Cite this

    Aono, K., Fusada, A., Fusada, Y., Ishii, W., Kanaya, Y., Komuro, M., Matsui, K., Meguro, S., Miyamae, A., Miyamae, Y., Murata, A., Narita, S., Nozaka, H., Saito, W., Watanabe, A., Nishikata, K., Kanazawa, A., Fujito, Y., Okada, R., ... Ito, E. (2008). Speed of back-swimming of Lymnaea. Acta biologica Hungarica, 59(SUPPL.), 105-109. https://doi.org/10.1556/ABiol.59.2008.Suppl.17