紀要論文 Estimation of CO_2 partial pressure and bicarbonate concentration in the hemolymph of the noble scallop Mimachlamys nobilis

Handa, Takeshi  ,  Yamamoto, Ken-ichi

64 ( 3 )  , pp.188 - 194 , 2016-03 , 水産大学校
ISSN:0370-9361
内容記述
We examined hemolymph pH, total CO_2 content (Tco_2, mM/l), CO_2 partial pressure (Pco_2, mmHg) and bicarbonate concentration ([HCO_3^-], mM/l) in order to evaluate the acid-base balance of the noble scallop Mimachlamys nobilis in normoxic conditions. Hemolymph was collectedanaerobically through a cannula after catheterization of the adductor muscle. The mean values of hemolymph pH and Tco_2 were 7.442 and 1.50 mM/l, respectively. Using the CO_2 solubility coefficient and apparent dissociation constant of carbonic acid determined in this study, Pco_2 and [HCO_3^-] were calculated as 1.55 mmHg and 1.44 mM/l, respectively. These values were in same range as those of the hemolymph of other marine bivalves of Mytiloida, Pterioida and Ostreoida
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http://ypir.lib.yamaguchi-u.ac.jp/fu/file/332/20161109171217/64-3-188-194.pdf

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