@article{oai:kochi.repo.nii.ac.jp:00002051, author = {和田, 哲 and 伊藤, 篤}, journal = {Bulletin of marine sciences and fisheries, Kochi University}, month = {Mar}, note = {application/pdf, In gastropods, there are two typical attachment manners, namely foot attachment and mucous attachment. Some littorinids are known to minimize heat stress by "tip-lip" attachment, which is the manner to attach with dried mucous thread to minimize contact with the hot substratum. Spatial variation on the frequency of "tip-lip" attachment was examined in the periwinkle, Nodilittorina radiata at two rocky coasts in Usa-cho, Kochi, Japan. Shell length, direction of attachment site and height of attachment site might not affect the attachment manners. Height of rocks was negatively correlated with the frequency of "tip-lip" attachment. These results suggest two possibilities: snails acquire lower thermal stress on higher rocks and/or snails exhibit "tip-lip" attachment more frequently on horizontal rocks than on vertical rocks.}, pages = {15--24}, title = {アラレタマキビ Nodilittorina radiata におけるつま先立ち行動}, volume = {20}, year = {2001} }