C. Nathanailides, ARE CHANGES IN ENZYME-ACTIVITIES OF FISH MUSCLE DURING COLD-ACCLIMATION SIGNIFICANT, Canadian journal of fisheries and aquatic sciences, 53(10), 1996, pp. 2333-2336
An equation similar to the one used to obtain Q(10) values can be used
to estimate the significance of an increase in the activity of aerobi
c enzymes in cold-acclimated fish. The phenomenon of increased activit
y of mitochondrial enzymes in cold-acclimated fish is surveyed using d
ata from published studies, and whether or not this increase can count
eract the limiting effects of low temperatures on the rate of reaction
s implicated in oxidative phosphorylation is investigated. It is concl
uded that the significance of an increase in enzyme content can vary w
ith species. In some studies, data indicate an almost perfect compensa
tion, while in other cases an imperfect compensation is found in the r
ate of chemical reactions after cold acclimation It is suggested that
the range of temperature difference between the cold- and warm-acclima
ted fish does not always influence the magnitude of the response exhib
ited in cold-acclimated fish.