Presence of trace elements in fishes from Chaco-Pampeana plain

ALEJANDRA VOLPEDO; ESTEBAN AVIGLIANO; ALICIA FERNÁNDEZ CIRELLI

SUSTAINABILITY, AGRI ,FOOD AND ENVIRONMENTAL RESEARCH

Universidad Católica de Temuco, Facultad de Recursos Naturales, Escuela de Ciencias Ambientales

Lugar: Temuco, Chile ; Año: 2015 vol. 3 p. 1 - 12

The Chaco-Pampean plain is one of the greatest plains worldwide; present a wetlandmacro system (lagoons, marshes, rivers, streams, channels). The water quality of theseenvironments is diverse and has different trace elements natural (As, F, Mo and V) andanthropogenic (Cr, Cu and Pb). The Chaco Pampean plain has an important diversity of fishspecies however the species of commercial importance are limited. This paper presents thereviews of the studies related to the presence of trace elements in tissues of commercial fishes(shad Prochilodus lineatus and silversides Odontesthes bonariensis) in the Chaco-Pampean plainin recent decades and a discussion about associated information gaps is presented.The presence of trace elements in commercial fish muscle is a major problem for foodsecurity. The results showed that most of the elements present in shad are in lower levels than themaximum limits set by the Argentine Food Code (CAA, 2014). In the case of Pb present in themuscle of the shad, the determined values exceed those considered by the European Food SafetyAuthority. In the case of silversides the values of As, Pb, Hg are mostly lower than thosemaximum recommended by the Argentine Food Code. However, according to the European FoodSafety Authority, the lower limit on the benchmark dose for a 10% response (BMDL) valuesassociated with health risk for As.