llJ 



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 I 



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to 



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o 



Q. 



012 4 6 



10 16 24 48 72 96 



TIME— hours 



Figure 46. Changes in the blood potassium levels of Penaeus aztecus in 

 the process of salinity adaptation at 18°C. The control conditions were 

 15 /ooS and 18°C and the control sample size was 44 shrimp 



110 



