Table 4.--A summary of plasma Na,K,and C1"values in steelhead trout (from published sources). Condition Na C1 K+ Reference June-July (55 g fish) Laboratory Freshwater test 是：18 range:.9=69 x=6.0 Houston(1959)） 137-185 March-May (13-15 cm fish) Laboratory tests Freshwater 102-149 105-161 Conte and Wagner (1965) (range of mean values) Spring 1975 hery rane Newcomb(1978) Laboratory tests Mean values range from: (control groups-Spring) 159t0169 133t01382.6t04.3 Newcomb (1978) Individual values range from: 155to182 128to1442.3t05.2