Studies on Ionic Regulation in Carcinus Maenas (L.) I. Sodium Balance

摘要: 1. The mechanism of sodium balance in Carcinus maenas has been investigated. 2. Measurements outflux showed no evidence a decrease surface permeability to dilute sea water. 3. rate urine production normal water was 3.6% body weight per day and the loss through insignificant compared with total loss. In 40% increased 30% accounted for 20% 4. influx calculation active component that uptake fully saturated at all external concentrations which animals could survive. 5. Regulation blood concentration is effected largely by activation mechanism. This prevents falling below critical level as long itself not too low.