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Fig. 4. Tritonia diomedea; effect of temperature on metabolic rates at
three developmental stages (blue circles=12°C; orange circles=21°C).
(A) Direct measurements on embryos in egg capsules. Each datum point ±
s.e.m. was derived from a regression equation as shown in
Fig. 2. (B) Estimated
per-embryo metabolic rates calculated by dividing the per-capsule rate by the
number of embryos per capsule (the latter number was either directly counted
or estimated from the mean number of embryos per capsule in other capsules
from the same mass; see text).