460 



440 

 420 

 400 

 380 

 360 



-I 340 



tr 



liJ 



E 320 



I 



g 300 



3 280 



I 



o 



260 

 240 

 220 

 200 

 180 

 160 

 140 



-ff- 



ACCL 2'b'^ 

 TEST I8°C 



V/ 



12 



10 



V/- 



16 

 TIME -hours 



24 48 72 96 



36%, 



160 



150 



140 



130 



120 



110 J^ 

 UJ 



100 o 



X 



o 



90 



80 



70 



60 



50 



168 



Figure 60. Comparison of the blood chloride ion levels of Penaeus 

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



conditions were 15°/ooS and 25°C 



127 



