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Quintero-Alvarez J.M.,National Autonomous University of Mexico | Soto-Jimenez M.F.,National Autonomous University of Mexico | Amezcua F.,National Autonomous University of Mexico | Voltolina D.,Laboratorio Of Estudios Ambientales Uas Cibnor | Frias-Espericueta M.G.,Autonomous University of Sinaloa
Bulletin of Environmental Contamination and Toxicology | Year: 2012

Mean Cd trend in the muscle of omnivorous (O), planktivorous (P), benthopelagic-carnivorous (BPC), and benthic carnivorous (BC) fish of one lagoon of NW Mexico was BPC >BC >P>O (0.89, 0.59, 0.55 and 0.24 μg g -1). That of Pb was P>BC>O>BPC (1.07, 0.48, 0.17 and 0.04 μg g-1). In the liver Cd was P>BPC>O>BC (5.09, 2.40, 2.07 and 1.95 μg g-1). Pb was P>O>BPC > BC (0.63, 0.40, 0.13 and 0.07 μg g-1). There were no differences in Cd and Pb contents due to feeding habits, and the correlations between metals and troph level were not significant (p > 0.05 in all cases). © Springer Science+Business Media, LLC 2012. Source


Frias-Espericueta M.G.,Autonomous University of Sinaloa | Vargas-Jimenez A.,Autonomous University of Sinaloa | Ruelas-Inzunza J.,Technological Institute of Mazatlan | Osuna-Lopez J.I.,Autonomous University of Sinaloa | And 3 more authors.
Bulletin of Environmental Contamination and Toxicology | Year: 2016

The mercury content of mullets and black mojarras of Urías lagoon (NW Mexico) were determined every second month from November 2012 to September 2013, to determine differences related to season or to trophic levels. The Hg contents of the muscle were significantly higher in mojarras, confirming that Hg contents tend to increase along the food chain, while the levels in liver were higher in mullets, suggesting different Hg storage strategies of these species. In mullets, the content of muscles did not vary seasonally and was significantly lower than in the liver. In black mojarras there were no significant differences between muscle and liver, and the lowest mean values were in May in both tissues. Given the low Hg contents, both species are safe for human consumption, but care should be taken in traditional fishing communities. © 2016 Springer Science+Business Media New York Source


Frias-Espericueta M.G.,Autonomous University of Sinaloa | Zamora-Sarabia F.K.G.,Autonomous University of Sinaloa | Marquez-Farias J.F.,Autonomous University of Sinaloa | Osuna-Lopez J.I.,Autonomous University of Sinaloa | And 2 more authors.
Latin American Journal of Aquatic Research | Year: 2015

We determined the Hg content of blood, placenta and umbilical cord of 20 pregnant females of the viviparous Pacific sharpnose shark, Rhizoprionodon longurio and of the livers of the embryos contained in their right and left uterus, aiming to provide information on the amount of this metal offloaded during pregnancy by the mother to the embryos. Hg content varied by close or higher than one order of magnitude in all tissues and showed the decreasing trend: maternal blood > umbilical cord > placenta > embryonic livers, with placenta and embryonic livers significantly lower than maternal blood. There were highly significant correlations (P < 0.001) between the Hg content of maternal blood, cord, and placenta. Those between embryonic livers and maternal blood, cord and placenta were not significant (P > 0.05). The results suggest transplacental Hg transfer and that the liver is not the main site of Hg accumulation. © 2015, Escuela de Ciencias del Mar. All rights reserved. Source


Frias-Espericueta M.G.,Autonomous University of Sinaloa | Cardenas-Nava N.G.,Autonomous University of Sinaloa | Marquez-Farias J.F.,Autonomous University of Sinaloa | Osuna-Lopez J.I.,Autonomous University of Sinaloa | And 3 more authors.
Bulletin of Environmental Contamination and Toxicology | Year: 2014

In this work we compared the cadmium (Cd), copper (Cu), lead (Pb), and zinc (Zn) contents of muscle, liver and placenta of gestating females of the viviparous shark Rhizoprionodonlongurio and of muscle, liver and umbilical cord of their respective embryos. The higher values of the essential Cu and Zn were in embryonic or embryo-related tissues (placenta and umbilical cord). Maternal muscle and liver had the highest values of Pb and Cd, respectively. There were significant direct correlations between the Zn and Cd concentrations of placenta and umbilical cord, as well as between maternal muscle and embryonic livers for Pb and Cd, but the relation between these tissues was inverse in the case of Zn. All correlations between the metal content of embryonic tissues and size of the embryos were negative, suggesting an inverse relation between the rate of mother-to-embryo metal transfer and embryonic growth. © 2014 Springer Science+Business Media New York. Source


Frias-Espericueta M.G.,Autonomous University of Sinaloa | Osuna-Lopez J.I.,Autonomous University of Sinaloa | Delgado-Alvarez C.G.,Autonomous University of Sinaloa | Muy-Rangel M.D.,CIAD | And 7 more authors.
Environmental Monitoring and Assessment | Year: 2015

This study shows the concentrations of Cd, Cu, Pb, and Zn in the muscle and hepatopancreas of Pacific white shrimps, Litopenaeus vannamei, cultured during 2010 in 26 commercial farms of the three main producer states of the Mexican NW, Sonora, Sinaloa, and Nayarit and compares the results to those obtained in 2000 using samples collected in16 farms of the same states. No significant changes were detected in Cd concentrations, but the 2010 Zn levels were significantly higher in all states in the hepatopancreas and in Sinaloa in the case of the muscle. Cu showed a tendency to higher hepatopancreas values in 2010, but differences were significant only in Sonora and for the global mean value. In contrast, Pb was one order of magnitude lower in both organs in 2010, possibly because of the almost 15 years since leaded gasoline was discontinued in Mexico. © 2015, Springer International Publishing Switzerland. Source

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