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Ordiano-Flores Alfredo Galván-Magaña Felipe Sánchez-González Alberto Páez-Osuna Federico 《Biological trace element research》2020,195(1):215-225
Biological Trace Element Research - We report cadmium (Cd) concentrations in muscle, liver, and blood of striped marlin (Kajikia audax) and blue marlin (Makaira nigricans), caught in the southwest... 相似文献
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Bioaccumulation of Mercury in Muscle Tissue of Yellowfin Tuna, Thunnus albacares, of the Eastern Pacific Ocean 总被引:1,自引:0,他引:1
Ordiano-Flores A Galván-Magaña F Rosiles-Martínez R 《Biological trace element research》2011,144(1-3):606-620
Tuna, like most large pelagic fish, are highly exploited by man, and it is, therefore, important to determine mercury (Hg) levels in these species in order to establish allowable limits for their consumption and/or contamination levels in the environment. In this study, we evaluated Hg accumulation in yellowfin tuna (Thunnus albacares) muscle in two different geographic sites of the eastern Pacific Ocean. There was a positive association between Hg content and tuna size in the equatorial zone (EQZ). Using adjusted sizes, the site of origin was a determinant factor in Hg accumulation. Sex, by contrast, did not affect Hg levels, suggesting that males and females have similar feeding habits. No Hg concentration was over the Hg content thresholds for large marine predators adopted by Mexican norms and by North American authorities (1?μg?g(-1) w.w.). Hg input due to yellowfin tuna consumption represented from 9.84% to 35.87% in Baja California Sur and from 14.78% to 53.87% in EQZ of the provisional tolerable weekly intake adopted by the World Health Organization. The target hazard quotient for Hg was <1 in each group of the population studied, which indicates that consumption of yellowfin tuna is not a threat to human health. 相似文献
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Gabriel Nú?ez-Nogueira Laura Fernández-Bringas Alfredo Ordiano-Flores Alejandro Gómez-Ponce Claudia Ponce de León-Hill Fernando González-Farías 《Biological trace element research》2012,150(1-3):208-213
Environmental metal pollution is one of the major problems faced by humankind. This type of pollution affects aquatic systems (estuaries, coastal lagoons, etc.), which are very dynamic systems, therefore making the study of the effects on the organisms that inhabit them an essential issue. In this study, the capacity of metal regulation by decapod crustacean Penaeus vannamei juveniles was determined. The effects of zinc, lead, and cadmium were tested individually and as a metal mixture exposure to determine possible synergism. The results showed that juvenile shrimps were capable of regulating zinc and lead, whereas cadmium was accumulated without any excretion, at least within the concentrations studied. It was also proved that under the estuarine conditions tested here, P. vannamei juveniles showed capacity to act as a bioindicator for cadmium. 相似文献
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