THE PERFORMANCE OF THE LAKE TROUT, SALVELINUS NAMAYCUSH, AT VARIOUS LEVELS OF TEMPERATURE AND OXYGEN PRESSURE

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Abstract
The ultimate upper lethal temperature is estimated to be 23.5 °C. The temperature for maximum activity is from 15 °C.–17 °C. Active respiration becomes dependent on the oxygen pressure at approximately two-thirds air saturation. The minimum oxygen pressure for this species is approximately 40 mm. Hg at 20 °C. and 60 mm. Hg at 20 °C. These data pertain to one-and two-year fish.