cr 



E 

 I 



O 

 a. 



6.0- ''t CONTROL 



40 



57c 



oo 



IZO 



100- 



80- 



60 



40 





_l I I L. 





.//•• 



^"^""SyJTROI " 



25»C 

 I8X 



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I0%o- 



120 



100 



80 



60 



-//- 

 -//- 



h^-^control" ^'^ , 



25*^ 



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15% 



12 4 6 



TIME— hours 



Figure 99. Comparison of the time course of potassium ion regula- 

 tion in Penaeus aztecus in relation to temperature change. Animals 

 were tested from control conditions of 15°/ooS and 18°C 



