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Brett, J. R. (1965). The relation of size to rate of oxygen consumption and sustained swimming speed of sockeye salmon Onchorynchus nerka. Journal of the Fisheries Research Board of Canada. 22:1491-1501.

The relation of size (log weight, g) to metabolic rate (log O 2-uptake, mg O 2/hr) of sockeye salmon was found to have a continuous change in slope (0.78-0.97) with increasing activity at 15 °C. The slope of the equation relating the 60- min sustained swimming speed (log speed, cm/sec) to length (cm) had a value of 0.50, demonstrating a rapid decrease in relative performance with increasing size. [abstract generated by bibliography authors]

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