ホソメコンブに見られる植食性小型巻貝４種による摂餌痕跡

DOI 日本農学文献記事索引 Web Site 被引用文献1件 参考文献21件

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タイトル別名
  • Feeding Traces on the Kelp Laminaria religiosa by Four Species of Small Herbivorous Gastropods
  • ホソメコンブ ニ ミラレル ショクショクセイ コガタ マキガイ 4シュ ニ ヨル セツジ コンセキ

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To clarify the effects of small herbivorous gastropods on the kelp Laminaria religiosa, we examined feeding traces left on the kelp by gastropods, and the morphology of gastropod radula. We conducted laboratory experiments with four species of the small herbivorous gastropods, Chlorostoma lischkei, Omphalius rusticus rusticus, Homalopoma amussitatum and Littorina sitkana, which frequently occur in habitats of L. religiosa in Hokkaido, Japan, to examine feeding traces left on a sheet of kelp gametophytes settled on styrene chambers or glass slides. In the experiments, all gastropod species fed on the kelp gametophytes both on the styrene chamber and the glass slide. We observed species-specific differences in feeding traces among gastropod species that were considered to be because of differences in the species-specific morphology and size of their radula and differences in feeding patterns. We observed similar traces in adult L. religiosa collected from its natural habitat in Esashi, Hokkaido, to those in our laboratory experiments, suggesting that the four gastropod species used in this study feed on the surface of the adult kelp.

収録刊行物

  • 水産増殖

    水産増殖 54 (2), 217-224, 2006

    日本水産増殖学会

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