TABLE 4. SURVIVAL, LENGTH, AND WEIGHT OF FATHEAD MINNOW AFTER 28 DAYS 

 AND 56 DAYS OF EXPOSURE TO HYDROGEN CYANIDE! . 



1 



Except where noted, chambers originally contained 80 larvae. Numbers were 

 reduced to a maximum of 40 per chamber after 28-day measurements. 



'Survival of fish present at beginning of period. 



Larvae spawned and hatched in control chambers of parent experiment. 

 l 

 Began with 42 larvae. 



'Began with 59 larvae. 



^Values are significantly different from control values according to 

 Dunnett's procedure (two-tailed; a = 0.05). 



46 



