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Le métabolisme du manganèse chez Cancer irroratus (Say, 1817) (crustacé, décapode) = Manganese metabolism in Cancer irroratus (Say, 1817) (Crustacea, Decapoda)
Martin, J.-L.M. (1976). Le métabolisme du manganèse chez Cancer irroratus (Say, 1817) (crustacé, décapode) = Manganese metabolism in Cancer irroratus (Say, 1817) (Crustacea, Decapoda). Cah. Biol. Mar. 17(3): 359-373
In: Cahiers de Biologie Marine. Station Biologique de Roscoff: Paris. ISSN 0007-9723, more
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    Marine

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  • Martin, J.-L.M.

Abstract
    The rates of manganese metabolism in the tissues of C. irroratus, exoskeleton, hepatopancreas, hypoderm, gills, hemolymph and muscles, are generally low and show variations during the intermoult cycle. These variations are, for the most part, dependent on the water content fluctuations in the tissues. For each tissue or organ, the rates of Mn metabolism are higher than those in sea water and hemolymph, showing that each of them is able to concentrate Mn. In C. irroratus, Mn seems to be more an intracellular or constituent element than an active metabolite. In the gills, this metal seems to be accumulated essentially by filtration of Mn in a particulate or colloidal form in sea water. In the exoskeleton, a very close correlation occurs between the rates of Mn and Mg metabolism. The accumulation of this metal in the exoskeleton could be linked with the growing amounts of carbonate crystals. Gills and exoskeleton show the highest rates of Mn metabolism. The process of accumulation of this metal in those tissues is essentially physical or physico-chemical, follows carbonate kinetics adsorption and filtration, and plays a leading part, with regard to the biological process, in the accumulation of Mn in C.irroratus.

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