940 

 920 

 900 

 880 

 860 

 840 

 820 



800 



780 



760 



g 740 



(/) 



O 



E 720 



t voo 



_l 

 < 



_l 680 

 O 



g 660 

 640 

 620 

 600 

 580 

 560 

 540 

 520 

 500 

 480 

 460 



-//- 



ACCL 25'C 

 TEST 18"^ 



,^'"^-— « .^' 









- 145 



140 



135 



257o, 





 // 



\r 



/ CONTROL 





15%, 



I0%< 



V " 



■•//., 



■-•-// • 



5%, 



O /o^ 



2%. 



/ 



Z^- 



-1 1 1 I i_ 



-/f- 



130 



125 



120 



115 5? 



_J 

 110 < 



o 



•s. 



v> 

 o 



105 



100 



95 



90 



80 



75 



70 



1 2 



10 16 24 48 72 96 



TIME-hours 



168 



Figure 51. Comparison of the blood osmotic levels of Penaeus aztecus 

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



were 15°/ooS and 25°C 



116 



