Table 26 



Effect of Deviated Ions on the Mortality Rates of Penaeus aztecus* 



The shrimp were tested in 15°/ooS with deviated ions from 15°/ooS 

 (normal ionic concentration) and 25 °C background. 



*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. 



258 



