Table XXXIX. 

 Mean blood magnesium concentration ^ S. E. in £. aztecus 

 during the time course of salinity-temperature adaptation. 



Control Temperature 25°C Control Salinity 15 /oo 



Test Temperature 18°C 



Sampling Test Salinity - °/oo 

 Interval 



(hour) 2 5 10 15 25 36 



B40 



