||Thermal Requirements of the Early Life History Stages of Walleye, 'Stizostedion vitreum vitreum', and Sauger, 'Stizostedion canadense'.
Koenst, Walter M. ;
Smith, Jr, Lloyd L. ;
||Minnesota Univ., St. Paul. Dept. of Entomology, Fisheries, and Wildlife.;Environmental Research Lab., Duluth, MN.
Fresh water fishes ;
Thermal pollution ;
Life cycles ;
Temperature measurement ;
Stizostedion vitreum ;
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Walleye Stizostedion vitreum and sauger Stizostedion canadense eggs were exposed to temperatures ranging from 6 to 21C to determine temperature effects on fertilization, incubation, and fry survival. Optimum fertilization temperatures were 6-12C for walleye and 9C for sauger. Optimum incubation temperatures were 9-15C for both walleye and saugar. When acclimated at 10-26C, the 96-h upper lethal temperatures for sauger juveniles was 26.6-30.4C, in order as with the walleye.