Record Display for the EPA National Library Catalog
RECORD NUMBER: 653 OF 2293Main Title | Effects of Temperature, Ration, and Size on the Growth of Juvenile Steelhead Trout, Salmo Gairdneri. | |||||||||||
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Author | Wurtsbaug, Wayne A. ; | |||||||||||
CORP Author | Oregon State Univ., Corvallis. | |||||||||||
Year Published | 1973 | |||||||||||
Report Number | DI-14-31-0001-3633; OWRR-B-027-ORE; 14873,; B-027-ORE(2) | |||||||||||
Stock Number | PB-224 016 | |||||||||||
Additional Subjects | ( Trout ; Growth) ; ( Fisheries ; Water pollution) ; Temperature measurement ; Food consumption ; Animal nutrition ; Streams ; Seasonal variations ; Theses ; Salmo gairdneri ; Thermal pollution | |||||||||||
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Collation | 81p | |||||||||||
Abstract | The effects of temperature, temperature flution, and fish size on the growth of juvenile steelhead trout (Salmo gairdneri) were studied in experiments which lasted 10-25 days. Groups of fish were fed at ration levels varying from near-starvation to repletion. Decelerating, curvilinear relationships between rates of food consumption and growth were defined in most of the experiments. At ration levels near maintenance, temperatures raised 3-6C above the seasonal ambient temperatures decreased the growth of the trout. As feeding rate increased, the detrimental effect of temperature on growth was ameliorated. (Modified author abstract) |