Ionic balance in the crustacea.
D000818:Animals; D002118:Calcium / Q000378:metabolism; D003445:Crustacea / Q000502:physiology*; D008274:Magnesium / Q000378:metabolism; D008433:Mathematics; D011188:Potassium / Q000378:metabolism; D012964:Sodium / Q000378:metabolism; D014882:Water-Electrolyte Balance
D012964:Sodium; D008274:Magnesium; D011188:Potassium; D002118:Calcium