I am looking for articles dealing with the calcium uptake in marine mollusks such as cephalopods, bivalves or gastropods. Specifically, whether the Ca comes from sea water or from food sources.
Thank you in advance!
Article Limacina helicina shell dissolution as an indicator of decli...
Maybe this article is a beginning. Basically about changing pH and effects of these tiny snail's shells.
Dear Bruce, thanks for the article.
Dear Abhijit is thee a dedicated chapter for shell formation?
Regards René
A few classic papers that should be useful (PDFs attached):
1. Van Der Borght & Van Puymbroeck (1966) Calcium metabolism in a freshwater mollusc quantitative importance of water and food as supply for calcium during growth. Nature 210:791-793.
From the conclusions: "Even when food is offered ad libitum and when the period of observation is relatively long (2.5 months versus the life-cycle of 4 months from egg to egg in laboratory conditions), about 80 percent of the calcium fixed by the animals is derived directly from the water."
2. Bevelander (1952) Calcification in molluscs. lll. Intake and deposition of the Ca45 and P32 in relation to shell formation. Biol. Bull. 102:9-15.
(...and references therein).
From the Introduction: "In regard to the source of calcium which is utilized in the formation of the shell, Orton (1925) observed that shells continue to grow in the English oyster in the absence of food. Similar observations were recorded for the American oyster by Galtsoff (1934) who states in this connection that the amount of calcium utilized is many times greater than could be stored in tissues."
You may be interested in calcium uptake in larval stages. Here are 2 papers using 45Ca to measure Ca uptake. They include species that brood their embryos in capsules which permeability to calcium changes during development.
Maeda-Martínez AN (1987) The rates of calcium deposition in shells of molluscan larvae. Comp Biochem Physiol A 86 (1):21-28
Maeda-Martínez AN (2008) Osmotic and ionic concentration of the egg capsule fluid of Crepidula fornicata in relation to embryonic development. Mar Biol 154:643-648
Some papers that may be useful.
Fournie, J. and Chetail, M., 1982. Evidence for a mobilization of calcium reserves for reproduction requirements in Deroceras reticulatum (Gastropoda: Pulmonata). Malacologia, 22: 285-291.
Heller, J. and Magaritz, M., 1983. From where do land snails obtain the chemicals to build their shells. Journal of molluscan studies, 49 (2): 116-121.
Hunter, R.D. and Lull, W.W., 1977. Physiologic and environmental factors influencing the calcium-to-tissue ratio in populations of three species of freshwater pulmonate snails. Oecologia, 29: 205-218.
Marxen, J.C. and Becker, W., 2000. Calcium binding constituents of the organic shell matrix from the freshwater snail Biomphalaria glabrata. Comparative biochemistry and physiology - Part B: Biochemistry and molecular biology, 127 (2): 235-242.
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