Acid-Base Balance during Emergence in the Freshwater Bivalve Corbicula fluminea

  title={Acid-Base Balance during Emergence in the Freshwater Bivalve Corbicula fluminea},
  author={Roger A. Byrne and Bradley N. Shipman and Neal J. Smatresk and Thomas H. Dietz and Robert F. Mcmahon},
  journal={Physiological Zoology},
  pages={748 - 766}
The Asian freshwater clam, Corbicula fluminea, was emersed at 23°C under three conditions: humid air, N₂ hypoxia, or air with valves clamped or bound shut. Under all conditions, clams became acidotic during emersion. In air, hemolymph pH declined from 790 to 7.14 in 72 h. Hypoxic clams displayed a similar decline in pH, but clams with valves clamped became acidotic more rapidly. Hemolymph CO₂ content (Cco₂) and Pco₂ rose with duration of aerial exposure in all treatment groups. However… 

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