Blood acid-base balance in the pearl oyster was examined by measuring blood pH, total CO_2 content（T_{CO2}), CO_2 partial pressure（P_{co2}）and bicarbonate concentration（[HCO_3^-]). The blood pH, Tco_2, Pco_2 and [HCO_3^-] under normoxic condition at 28 ℃ were 7.35-7.42, 1.8-2.1 mM, 1.4-1.8 torr and 1.7-2.0 mM, respectively, although temporary respiratory acidosis was observed just after the surgery for blood collection.
Pearl oyster
Pinctada fucata martensii
Blood acid-base balance
Cannulation
Surgery