Risk assessment of mercury in sharks (Rhizoprionodon longurio) caught in the coastal zone of Northwest Mexico. Frías-Espericueta, M., G.; Ruelas-Inzunza, J.; Benítez-Lizárraga, R.; Escobar-Sánchez, O.; Osuna-Martínez, C., C.; Delgado-Alvarez, C., G.; Aguilar-Juárez, M.; Osuna-López, J., I.; and Voltolina, D. Journal fur Verbraucherschutz und Lebensmittelsicherheit, 14(4):349-354, 2019.
abstract   bibtex   
Adult sharpnose sharks (Rhizoprionodon longurio) with a mean total length of 110.93 ± 5.30 cm were obtained from a local fishery in Mazatlán (Southeast Gulf of California, Mexico). The total mercury content in muscle was analyzed by cold vapor atomic absorption spectrophotometry. The minimum and maximum total mercury content were 0.77 ± 0.23 and 2.33 ± 0.57 µg/g (dry weight), respectively. Only 6.6 % of the organisms did show mercury content higher than the permissible limit. No significant relationship was observed between weight and total mercury content in edible muscle of the sharks (r = 0.364, p > 0.05). The Hazard Quotient values for total mercury (0.005–0.015) and methyl mercury (0.022–0.065) indicated no risk by edible muscle consumption of the shark Rhizoprionodon longurio.
@article{
 title = {Risk assessment of mercury in sharks (Rhizoprionodon longurio) caught in the coastal zone of Northwest Mexico},
 type = {article},
 year = {2019},
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 keywords = {E0723,GBMS},
 pages = {349-354},
 volume = {14},
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 abstract = {Adult sharpnose sharks (Rhizoprionodon longurio) with a mean total length of 110.93 ± 5.30 cm were obtained from a local fishery in Mazatlán (Southeast Gulf of California, Mexico). The total mercury content in muscle was analyzed by cold vapor atomic absorption spectrophotometry. The minimum and maximum total mercury content were 0.77 ± 0.23 and 2.33 ± 0.57 µg/g (dry weight), respectively. Only 6.6 % of the organisms did show mercury content higher than the permissible limit. No significant relationship was observed between weight and total mercury content in edible muscle of the sharks (r = 0.364, p > 0.05). The Hazard Quotient values for total mercury (0.005–0.015) and methyl mercury (0.022–0.065) indicated no risk by edible muscle consumption of the shark Rhizoprionodon longurio.},
 bibtype = {article},
 author = {Frías-Espericueta, Martín G. and Ruelas-Inzunza, Jorge and Benítez-Lizárraga, Rubén and Escobar-Sánchez, Ofelia and Osuna-Martínez, C. Cristina and Delgado-Alvarez, Carolina G. and Aguilar-Juárez, Marisela and Osuna-López, J. Isidro and Voltolina, Domenico},
 journal = {Journal fur Verbraucherschutz und Lebensmittelsicherheit},
 number = {4}
}
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