00000caa a22000003i 4500 UP-1685594773862387863 Buklod 20210216205839.0 m | | ta 210216s1988 xx r |||| u|eng d (iLib)UPBAG-00039292226 STII-DOST BAG rda eng ARTICLE-2140 Saha, A. author. The extrapallial fluid of Macomma Bimanica an environment for calcium carbonate deposition A. Saha, T.k. Jana and A. Choudhury. 1988. pages 395-399 26 cm text rdacontent unmediated rdamedia volume rdacarrier Includes bibliographical references (page 398) A comparison of concentrations of inorganic ions in the surrounding medium and extrapallial fluid of Macoma birmanica showed that in Macoma birmanica the differences in Na+ (160 ppm), K+ (30 ppm) C03-2 (0.06 mM[1) and chlorinity (1.96 ppt) were small except for Ca+2 (578 ppm) and HCO-3 (6.54 mM[-I). It was observed that the extrapallial fluid was three times more saturated with respect to both calcite and aragonite than the surrounding medium. The value of Ca/CI ratio of the extrapallial fluid (0.0515) was 69 % higher than the value of surrounding medium (0.0158). Thus a higher degree of saturation allows for the precipitation of calcium carbonate from the extrapallial fluid. Marine Science. Extrapallial fluid. Macomma Bimanica. Calcium carbonate. Jana,T.k. author. Choudhury, A. author. The Philippine Journal of Science Vol. 117, no.4, October-December 1988. FI UPBAG UPBAG-MAIN ARTICLE-2140 Analytics