ABSTRACT 



Spring and summer water temperatures of streams 

 tributary to the south shore of Lake Superior from 1950-60 

 have been recorded as part of the biological and limno- 

 logical data collected at sea lamprey control devices. 

 These data are presented by 10- or 11-day averages as a 

 reference source fca: other fishery researchers. 



Maximum -minimum readings and single pocket- 

 thermometer temperatures gave closely similar averages. 



