460 

 440 

 420 

 400 

 380 

 360 

 _l 340 



liJ 



E 320 



I 



tiJ 

 Q 300 



280 

 260 

 240 

 220 

 200 



180 

 160 



140 



-VA- 



ACCL ZS^C 

 TEST ZS'C 



— '/A -^ 



/, 



'>^^ CON TROL 



V 



f'/^ 



'//-- 



12 



-//- 



10 16 24 



TIME —hours 



48 72 96 



36 /o< 



25%, 



15%, 



10%, 



5%< 



2% 



160 



150 



140 



130 



120 



110 vO 



UJ 



9 

 cr 



100 o 



_l 



X 



o 



90 



80 



70 



60 



50 



168 



Figure 58. Comparison of the blood chloride ion levels of Penaeus 

 aztecus during adaptation to various salinities at 25°C. The control 



conditions were 15°/ooS and 25°C 



125 



