Freshwater stingrays, Potamotrygon spp.: failure to concentrate urea when exposed to saline medium.
D000818:Animals; D001798:Blood Proteins; D002118:Calcium / Q000097:blood; D002712:Chlorides / Q000097:blood; D005400:Fishes, Poisonous / Q000378:metabolism*; D008274:Magnesium / Q000097:blood; D010758:Phosphorus / Q000097:blood; D011188:Potassium / Q000097:blood; D012623:Seawater; D012964:Sodium / Q000097:blood; D012965:Sodium Chloride; D014508:Urea / Q000097:blood / Q000378:metabolism*; D014882:Water-Electrolyte Balance
D001798:Blood Proteins; D002712:Chlorides; D010758:Phosphorus; D012965:Sodium Chloride; D014508:Urea; D012964:Sodium; D008274:Magnesium; D011188:Potassium; D002118:Calcium