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Fig. 3. Changes in gluconeogenic enzyme specific activities (i.u. mg-1
protein) in liver of Fundulus grandis held under normal and reduced
oxygen levels for 4 weeks at 27°C. The y axis represents the percent
change in the mean value for each enzyme measured from hypoxic fish relative
to the normoxic value. Asterisks indicate significant differences between mean
specific activity values from normoxic and hypoxic groups
(*P
0.05; **P
0.001; see
Table 3). MDH, malate
dehydrogenase; PEPCK, phosphoenolpyruvate carboxykinase; FBPase,
fructose-1,6-bisphosphatase; G6Pase, glucose-6-phosphatase.