. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 10 100 1 1000 Weight (g) Sebastolobus alascanus 9°C 4°C. 100 Weight (g) 1000 Figure 2. Regressions of VO: on body mass (M) for Sforpaemi guttata and alascanus. Equations for S. gultata: 18°C, Log VO, + Log M. r = ; 9°C, Log VO2 = + Log M. r = For 5. alascanus: 9°C, Log VO: = + Log M, r2 = ; 4°C. Log VO, = + Log M, r = ear regression technique (Wilman software: Brooks and Suelter, 1986). Statistical analysis Linear regression analysis of log
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 10 100 1 1000 Weight (g) Sebastolobus alascanus 9°C 4°C. 100 Weight (g) 1000 Figure 2. Regressions of VO: on body mass (M) for Sforpaemi guttata and alascanus. Equations for S. gultata: 18°C, Log VO, + Log M. r = ; 9°C, Log VO2 = + Log M. r = For 5. alascanus: 9°C, Log VO: = + Log M, r2 = ; 4°C. Log VO, = + Log M, r = ear regression technique (Wilman software: Brooks and Suelter, 1986). Statistical analysis Linear regression analysis of log-transformed data was used to calculate the relationship between VO2 and body mass. The regression lines were tested by analysis of co- variance (ANCOVA). An unpaired Student t-test was used to compare the results of P5(> values and enzyme activities. The Tukey HSD pairwise analysis of variance (Wilkinson, 1990) was used to compare anaerobic/aerobic enzyme ac- tivity ratios between species. P < was taken as the criterion for significant differences. Results \'O: and temperature Relationships between VO2 and body mass at each temperature are shown for both species in Figure 2. Scaling equations describing the regression of VO2 on mass at each test temperature are shown in Table I. Although there were no significant differences in the slopes of the four lines, their intercepts did differ (P < ). Interspecific VO2 comparisons (Table I) feature the regression-calcu- lated VO2 of a 250 g fish (median body mass) at each temperature, along with the 95% confidence intervals of the value. The VO2 of S. guttata at 18°C, the temperature at which specimens were caught [and which was near the high end of its habitat range (about 10-20°C)], is and times that of S. alascanus at 9 and 4°C (habitat tem- perature range), respectively. At 9°C, however, the VO2 ofS. guttata is only about twice that of 5. alascanus. The Q10 of the VO2 for S. alascanus between 4
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Keywords: ., bookauthorlilliefrankrat, booksubjectbiology, booksubjectzoology
