4 6 

 440 

 420 

 400 

 380 

 360 



_j 340 



UJ 



E 320 



I 



g 300 



3 280 



X 



u 



260 

 240 

 220 

 200 



180 



160 

 140 



-//- 



ACCL I8°C 

 TEST ZZ'C 



^ ^5S5bs— -I 130 



/ 



---- y/ — 



25%, 





15%, 





//■ — ' 



'/>"' 



\OJJp 

 I0%o 



• •' 5%^ 



2% 



■y/- 



150 



140 



120 



- 110 



O 



100 o 



-I 

 I 

 o 



- 90 



- 80 



- 70 



60 



50 



12 



10 



16 24 4f 



TIME-hours 



72 96 



168 



Figure 66. Comparison of the blood chloride ion levels of Penaeus 

 aztecus during adaptation to various salinities at 32°C. The control 



conditions were 15°/ooS and 18°C 



134 



