Body Fluids 



119 



+ 10 



X 



o - 



20 



40 



HOURS 



Fig 20. Changes in weight of Hyas aranea, Cancer pagurus, and 

 Carcinus meanas after transfer from the North Sea (salinity, 32%) 

 to brackish water (salinity, 2%). (After Schlieper, 1933.) ' 



