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Application of Chemometric Studies to Metal Concentrations in Molluscs from the Strait of Magellan (Chile)


Na, K, Ca, Mg, Fe, Cu, Zn, Mn, Se, Ni, and Cd concentrations were determined in 126 mollusc samples belonging to five different species (Mytilus chilensis, n = 47; Nacella deaurata, n = 65; Aulacomya ater, n = 4; Fissurella picta, n = 4; Acanthina monodon, n = 6) collected from the coasts of the Strait of Magellan. The metals analysed presented significant differences between the mean concentrations for the mollusc species considered. Factor and discriminant analyses made possible the differentiation of the mollusc species. In addition, when discriminant analysis was used, good classifications were obtained according to sampling zone and weight-to-length ratio of the organisms.

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This work was financed in part by the Education Minister of Chile, Projects Mineduc-Acuicultura, and MECESUP MAG002. We also gratefully acknowledge the help of P. Dennis for improving the English in the manuscript.

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Correspondence to C. Díaz Romero.

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España, M.S.A., Rodríguez, E.M.R. & Romero, C.D. Application of Chemometric Studies to Metal Concentrations in Molluscs from the Strait of Magellan (Chile). Arch Environ Contam Toxicol 52, 519–524 (2007).

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  • Metal Concentration
  • Discriminant Analysis
  • Linear Discriminant Analysis
  • Discriminant Function
  • Sampling Zone