Functional adaptation for unique habitats in the species of intertidal limpets Patelloida

Shizuko Nakai, Norio Wakayama, Satoshi Chiba

研究成果: Article査読

抄録

Many studies have shown that physical environmental factors cause phenotypic diversity in limpets. However, no studies have documented how substrate conditions (surface shape and topology) affect adhesive force and how they regulate shell morphology in limpets. The intertidal limpet Patelloida pygmaea, having a flat shell, is found exclusively on oyster shells, while P. conulus, with an extremely high shell, is found on Batillaria cumingi. The adhesive force on the B. cumingi was significantly greater in P. conulus than in P. pygmaea, whereas the force on the oyster shell showed no significant difference between these species. On the B. cumingi, a significantly positive correlation was found between adhesive force and volume in P. conulus, and no significant correlation was found in P. pygmaea. In contrast, on the oyster shell, a significant positive correlation was found between adhesive force and volume in both of the two species. These results suggest that the shell of P. conulus becomes higher with increasing own shell size by keeping aperture area relative to body size as small as possible. These morphological differences are most likely due to an adaptation to utilize different habitats and adhere to substrates with different structure and topology.

本文言語English
ページ(範囲)547-552
ページ数6
ジャーナルJournal of the Marine Biological Association of the United Kingdom
92
3
DOI
出版ステータスPublished - 2012 5

ASJC Scopus subject areas

  • Aquatic Science

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