Table 27 



Effect of Deviated Ions on the Mortality Rates of Penaeus aztecus 



The shrimp were tested from a background of 25 °C and 

 normal 5°/oo and 10°/ooS media. 



''The percentages represent the actual ion concentrations present in each 

 test medium. Mortalities are shown in terms of actual deaths (D) , shrimp 

 stressed (S) beyond the point of recovery, or deaths due to molting (in 

 parentheses) . Ten shrimp were tested in each condition. 



262 



