Hydrostatic pressure and membrane permeability.
D000818:Animals; D001001:Anura; D002463:Cell Membrane Permeability; D004524:Eels; D005880:Gills / Q000378:metabolism; D006874:Hydrostatic Pressure; D011188:Potassium / Q000378:metabolism; D011312:Pressure; D012867:Skin; D012965:Sodium Chloride
D012965:Sodium Chloride; D011188:Potassium