The relationship between simulated seasonal temperatures and depth distributions in the freshwater pulmonate, Lymnaea stagnalis

Publisher Website
Google Scholar
Abstract
Fall-collected specimens of Lymnaea stagnalis were placed in aerated aquaria and held under constant light inside a controlled environment chamber that was subjected to an artificial temperature cycle between 19 and 2 °C. At water temperatures between 19 and 9 °C there was no evidence that these snails sought out either specific water depths or substrata on which to cling, nor that they moved at different rates. However, at water temperatures below 9 °C, they moved to deeper water, being significantly concentrated in the deepest water at temperatures below 4 °C. They also moved less, becoming essentially immobile at 2 °C, and spent more time clinging to solid substrata and avoiding the loose bottom sediments at these lower temperatures. No snail was recorded burrowing, even at the lowest temperatures.
Keywords

This publication has 1 reference indexed in Scilit: