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Resumen del producto
Lara, A., F., Galván-Magaña, F., Elorriaga-Verplancken, A.J., Marmolejo-Rodríguez, R., González-Armas & L., Arreola-Mendoza
(2020).
Identifying safe marine foods: Organotropism of some elements trace in the pelagic thresher shark Alopias pelagicus in western Pacific coast, Mexico.
Northeast Pacific Shark Symposium IV.
La Pa, Baja California Sur, México, marzo 5 - 7, 2020,
7.
Identifying safe marine foods: Organotropism of some elements trace in the pelagic thresher shark Alopias pelagicus in western Pacific coast, Mexico
Ariagna Lara, Felipe Galván-Magaña, Fernando Elorriaga-Verplancken, Ana Judith Marmolejo-Rodríguez, Rogelio González-Armas y Laura Arreola-Mendoza
The pelagic thresher shark Alopias pelagicus is a high trophic-leveled predator with ecological and economic importance in the field of fisheries, both for local consumption and export. Due to environmental and human health impacts, biological monitoring of metals and trace element concentrations in species of human consumption is increasingly important. Concentration of mercury, selenium and cadmium in the muscle and liver tissue of A. pelagicus was determined for individuals captured in Baja California Sur, Mexico. The average concentrations of Hg (0.76 mg kg-1) and Cd (0.18 mg kg-1) in muscle tissue were below maximum permissible limits established for human consumption. Likewise, the mean concentration of Se in muscle was relatively low (0.30 mg kg-1) resulting in a molar excess of Hg over Se. However, average Cd concentration in the liver is much higher than the maximum permissible limit for consumption. Mercury concentration presented more accumulation in the muscle than in the liver which is also contrary to selenium and cadmium presenting an inverse relationship (liver> muscle).
Palabras clave: Sharks; Mercury; Selenium; cadmium; muscle & Liver
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