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Transfer of metal detoxification along marine food chains

  • J. A. Nott (a1) and Artemis Nicolaidou (a2)


It has been observed previously that the digestive gland of the carnivorous gastropod mollusc, Murex trunculus, does not accumulate metals which occur in high concentration in the digestive gland of its prey, the detritus-feeding gastropod, Cerithium vulgatum. It is proposed that mechanisms of metal detoxification which operate in C. vulgatum render metals biologically unavailable to M. trunculus. In the present work, this scheme is tested by feeding tissues containing detoxified metals from a gastropod, bivalve and barnacle to carnivorous gastropods. Metals in the prey are accumulated in insoluble granules in the digestive gland of the gastropod, kidney of the bivalve and gut connective tissue of the barnacle. These tissues are fed to the carnivores and the granules pass through the entire length of the gut. They are egested as clean preparations within the faecal pellets and they still contain the metals introduced by the tissues of the prey. This transfer of detoxification between species indicates that the food chain progression of material can result in the reduction of the bioavailability of metals. The observations are recorded by scanning electron microscopy and X-ray microanalysis.



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Carmichael, N.G., Squibb, K.S. & Fowler, B.A., 1979. Metals in the molluscan kidney: a comparison of two closely related bivalve species (Argopecten), using X-ray microanalysis and atomic absorption spectroscopy. Journal of the Fisheries Research Board of Canada, 36, 11491155.
George, S.G., 1982. Subcellular accumulation and detoxication of metals in aquatic animals. In Physiological Mechanisms of Marine Pollutant Toxicity (ed W.B., Vernberget al.), pp. 352. Academic Press.
George, S.G., Pirie, B.J.S. & Coombs, T.L., 1980. Isolation and elemental analysis of metal-rich granules from the kidney of the scallop Pecten maximus (L.). Journal of Experimental Marine Biology and Ecology, 42, 143156.
Mason, A.Z. & Nott, J.A. 1981. The role of intracellular biomineralized granules in the regulation and detoxification of metals in gastropods with special reference to the marine prosobranch Littorina littorea. Aquatic Toxicology, 1, 239256.
Mason, A.Z., Simkiss, K. & Ryan, K.P., 1984. The ultrastructural localization of metals in specimens of Littorina littorea collected from clean and polluted sites. Journal of the Marine Biological Association of the United Kingdom, 64, 699720.
Nicolaidou, A. & Nott, J.A., 1990. Mediterranean pollution from a ferro-nickel smelter: differential uptake of metals by some gastropods. Marine Pollution Bulletin, 21, 137143.
Nott, J.A. & Nicolaidou, A., 1989 a. The cytology of heavy metal accumulations in the digestive glands of three marine gastropods. Proceedings of the Royal Society (B), 237, 347362.
Nott, J.A. & Nicolaidou, A., 1989 b. Metals in gastropods - metabolism and bioreduction. Marine Environmental Research, 28, 201205.
Rainbow, P.S., 1987. Heavy metals in barnacles. In Barnacle Biology (ed. A.J., Southward), pp. 405417. Rotterdam: A.A. Balkema.
Ryan, K.P., Bald, W.B., Neumann, K., Simonsberger, P., Purse, D.H. & Nicholson, D.N., 1990. Cooling rate and ice-crystal measurement in biological specimens plunged into liquid ethane, propane, and Freon 22. Journal of Microscopy, 158, 365378.
Thomas, P.G. & Ritz, D.A., 1986. Growth of zinc granules in the barnacle Elminius modestus. Marine Biology, 90, 255260.
Walker, G., Rainbow, P.S., Foster, P. & Crisp, D.J., 1975 a. Barnacles: possible indicators of zinc pollution? Marine Biology, 30, 5765.
Walker, G., Rainbow, P.S., Foster, P. & Holland, D.L., 1975 b. Zinc phosphate granules in tissue surrounding the midgut of the barnacle Balanus balanoides. Marine Biology, 33, 161166.

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Transfer of metal detoxification along marine food chains

  • J. A. Nott (a1) and Artemis Nicolaidou (a2)


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