88 American Fisheries Society 



degrees is still better. If the best results are to be obtained 

 unfavorable temperatures should, of course, be avoided. 



The eggs measure 180,000 to the fluid quart, are of a light 

 amber color and very glutinous. They "eye" in three to four 

 days at an average temperature of 62 degrees and hatch in nine or 

 ten days. The fry are approximately three-sixteenths of an inch 

 long when hatched, and the yolk sac is completely absorbed in 

 about three days. The fry swim up nicely and are not cannibalistic. 



A very fine meshed screen must be used in screening the fry 

 retaining-tank, in order to prevent the escape of the young fish. 



