460 

 440 

 420 

 400 



380 



360 



^ 340 

 UJ 



E 320 



UJ 



S 300 



c 

 o 



-I 



X 



o 



280 

 260 

 240 

 220 

 200 

 180 

 160 

 140 



■VA- 



ACCL 32"C 



TEST \ex 



.^ 36%« 



 90 



_l_ 



12 



10 



-//- 



_1_ 



160 



150 



140 



130 



120 



J« 



110 UJ 



a 



100 



-I 



X 



o 



- 80 



70 



. 60 



16 

 TIME -hours 



24 48 72 96 



168 



50 



Figure 63, Comparison of the blood chloride ion levels of Penaeus 

 aztecus during adaptation to various salinities at 18°C. The con- 

 trol conditions were 15°/°oS and 32°C 



131 



