title: The water balance of a serpulid polychaete, Mercierella enigmatica (Fauvel). II. Ion concentration.
mesh_terms: D000818:Animals; D000845:Annelida / Q000378:metabolism*; D002118:Calcium / Q000097:blood; D002712:Chlorides / Q000097:blood; D004777:Environment; D007477:Ions / Q000097:blood*; D008274:Magnesium / Q000097:blood; D009994:Osmolar Concentration; D011188:Potassium / Q000097:blood; D012964:Sodium / Q000097:blood; D014882:Water-Electrolyte Balance
chemical_list: D002712:Chlorides; D007477:Ions; D012964:Sodium; D008274:Magnesium; D011188:Potassium; D002118:Calcium