Thermal Requirements of the Early Life History Stages of Walleye, 'Stizostedion vitreum vitreum', and Sauger, 'Stizostedion canadense'

摘要

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.