(^) to obtain a growth-rate estimate, g.
(^) The results (Fig. 7.19) showed two seemingly odd things: (i) both D and g were
independent of body size, and (ii) both appeared to depend very strongly on
temperature. Both of these seemed odd because “everybody knows” that
physiological rates depend upon body size, being approximately proportional to W0.7
(where W is weight), or some similar rule, and because everyone thought of growth as
just as much dependent upon food, which varies in time, as upon temperature. Thus,
Huntley and Lopez were suggesting basically that food variation is much less
important than temperature variation.
Fig. 7.19 (a) Time from egg to adult for copepods of many species and adult sizes
from a wide range of latitudes as a function of temperature. (b) Relationship, for the
same copepods, of body growth rate (estimated from a simplified exponential growth
relation) to temperature.
(After Huntley & Lopez 1992.)
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