Geographical variation in heat coma temperatures in Littorina species (Mollusca: Gastropoda)
Clarke, A.P.; Mill, P.J.; Grahame, J.; McMahon, R.F. (2000). Geographical variation in heat coma temperatures in Littorina species (Mollusca: Gastropoda). J. Mar. Biol. Ass. U.K. 80: 855-863. https://dx.doi.org/10.1017/S0025315400002836
In: Journal of the Marine Biological Association of the United Kingdom. Cambridge University Press/Marine Biological Association of the United Kingdom: Cambridge. ISSN 0025-3154; e-ISSN 1469-7769, more
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| Authors | | Top |
- Clarke, A.P.
- Mill, P.J.
- Grahame, J.
- McMahon, R.F.
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| Abstract |
Upper critical thermal limits were measured as heat coma temperatures in Littorina species (Mollusca: Gastropoda) from sites around the British Isles. Thermal tolerance was found to be stable within a population but extensive variation occurred between populations and species. The majority of species examined displayed heat coma values of around 30°C and did not show a positive correlation with shore height. The highest capacity for thermal tolerance was found along the coast of South Wales, while the lowest was found on the south-west coast of Ireland and on the east coast of Scotland. |
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