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Indications of age-dependent metabolism of calcium in the crayfish (Crustacea, Decapoda)
Adegboye D 
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Abstract
A review of previous works on calcium metabolism in the crayfish Procambarus acutus acutus (Adegboye, 1975), indicates that the regulation of calcium ion concentration in the tissues is under the influence of age-related processes of the crayfish. In certain instances, older crayfish store a greater proportion of calcium in certain tissues than younger crayfish. However, the influence of aging on hemolymph calcium varies with the stage in the moulting cycle. The observed age-dependent metabolism of calcium in the crayfish corroborates age-dependent processes of decapod crustaceans: These processes include, the frequency of moulting, increase in size per moult, onset of sexual maturity, fecundity, and rate of embryonic development.
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Adegboye D. (1983). Indications of age-dependent metabolism of calcium in the crayfish (Crustacea, Decapoda). Freshwater Crayfish 5(1):126-136. doi: 10.5869/fc.1983.v5.126
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