International Journal of Agricultural Policy and Research
Vol.2 (12), pp. 414-420, December 2014
Article /14/ID/PR144/07 pages
Author(s) agree that this article remain permanently open access under the terms of the Creative Commons Attribution License 4.0 International License.
Original Research Article
Heavy metal concentrations in two important fishes caught in artisanal fisheries of southeastern pacific waters
Sebastian A. Lopez1*, Nicole Abarca1, Francisco Concha2,3 and Roberto Meléndez1
1Centro de Investigacion Marina Quintay CIMARQ. Escuela de Ciencias del Mar, Universidad Andres Bello. Republica # 440, Santiago, Chile.
2Laboratorio de Biología y Conservación de Condrictios, Universidad de Valparaíso, Chile.
3Department of Ecology and Evolutionary Biology, University of Connecticut. # 75 North Eagleville – unit 3043, Storrs CT, U.S.A.
*Corresponding Author E-mail: s.lopez(at)uandresbello.edu
Muscle tissues of 102 yellownose skate (Zearaja chilensis) and 51 plownose chimaera (Callorhinchus callorhynchus) caught as bycatch in the artisanal fisheries of common hake were analyzed to determine the concentrations of mercury (Hg) and lead (Pb) measured by cold vapour and acetylene flame methods, respectively. Mercury concentration showed no differences in the studied species (p=0.1413) with 0.088 ± 0.05 μg•g-1 w.w. for Z. chilensis and 0.044 ± 0.18 μg•g-1 for C. callorhynchus. The same situation occurred in lead concentration (p=0.986) for the skate and chimaera. However, the two studied species showed higher values of Pb, with 2.48 ± 2.50 μg•g-1 and 2.47 ± 3.11 μg•g-1. Based by WHO values, mercury concentrations reported in this study will not constitute a risk for human health, in contrast to the high contributions of lead that were found in the different tissues of the yellownose skate and the plownose chimaera, in which there will be a risk for human consumption.
Key words: Public health, fish human consumption, fisheries, elasmobranchs