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Figure 2


Fig. 2. A response surface describing mass-specific O2 consumption rate (MO2) as a function of body mass and PO2 based on data from 35 oscars ranging in mass from 8.8 to 308 g. The model is: logMO2=3.20686+0.786xlog(mass)–0.88913x0.96371PO2 (0.05–0.3 kg fish) (r2=0.948); logMO2=3.28076+0.786xlog(mass)–0.92331x0.97024PO2 (0.01–0.05 kg fish) (r2=0.928), where MO2 is in µmol O2 h–1, mass is in kg, and PO2 is in mmHg.