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Growth of the white crappie in a reservoir receiving a thermal discharge, Thomas Hill, Missourir

Technical Report ·
OSTI ID:7308395
The age and growth of white crappie was studied in a thermally loaded 4,500 acre reservoir. Growth of fish from the Hotwater Arm was compared to that from a Control Arm. Maximum discharge temperature was 37C which elevated the Hotwater Arm 0.5-11.5C above the Control Arm. The reservoir was formed in 1966, clear for three years, but became turbid in '69-'70, the time of this study. After a detailed analysis of 2,454 fish it is difficult to state categorically what effect heated water had on the growth rate. Of note is that a 'normal' frequency distribution of fish was composed of 2 to 4 classes. Young fish of several year classes grew to 140-160 mm and then stopped growing. Turbidity and available forage may have been determinant factors in growth of this fish population.
Research Organization:
Missouri Univ., Columbia (USA). School of Forestry, Fisheries and Wildlife
OSTI ID:
7308395
Report Number(s):
PB-265154
Country of Publication:
United States
Language:
English