The effect of temperature on activity in Antarctic marine species. a. The proportion of animals in a population of the limpet Nacella concinna capable of righting when turned over. b. The proportion of the infaunal bivale Laternula elliptica capable of reburying when removed from sediment. c. The proportion of scallops, Adamussium colbecki capable of swimming. A regression was fitted to data for temperatures above 0.3°C, where a clear relationship exists. Below this value no temperature restriction is apparent. In all 3 graphs regressions were fitted following arcsin transforms of the square root of % values. Dotted lines indicate 95% confidence intervals. Figure modified from .