Record Display for the EPA National Library Catalog


Main Title Growth and Survival of Channel Catfish and Yellow Perch Exposed to Lowered Constant and Diurnally Fluctuating Dissolved Oxygen Concentrations.
Author Carlson, Anthony R. ; Blocher, John ; Herman, Lawrence J. ;
CORP Author Environmental Research Lab.-Duluth, MN.
Year Published 1980
Report Number EPA-600/J-80-192;
Stock Number PB81-129884
Additional Subjects Dissolved gases ; Oxygen ; Fresh water fishes ; Water pollution ; Growth ; Animal ecology ; Diurnal variations ; Concentration(Composition) ; Survival ; Catfishes ; Perch ; Reprints ; Perca flavescens ; Ictalurus punctatus
Library Call Number Additional Info Location Last
NTIS  PB81-129884 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 6p
Growth and survival were determined for duplicate lots of juvenile channel catfish (Ictalurus punctatus) and yellow perch (Perca flavescens) exposed for 69 and 67 days, respectively, to nearly constant dissolved oxygen (DO) concentrations at near air saturation (control), 6.5, 5.0, 3.5, and 2.0 mg/l. The following year juveniles of the same species were exposed to DO concentrations that gradually fluctuated diurnally at about 1.0 to 1.5 mg/l above and below the constant lowered DO levels of the previous year. At mean constant DO concentrations of 3.5 mg/l or less, channel catfish consumed less food and growth was significantly reduced. Survival of both species was unaffected by the reduced DO exposures.