16 



TABLE 4 - Mortality of sockeye alevins and fry (Cultus race, hatchory 

 reared) continuously exposed to tetrachlorocatechol and 

 dichlorocatechol at U5°^. Original numbers of fish m Groups 1 and 2 

 wore 360 and L^O, respectively. 



" Mortality occured in first nine days, remaining fish distressed^ 

 experiment halted. 



