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Journal of Consumer Protection and Food Safety

, Volume 14, Issue 4, pp 349–354 | Cite as

Risk assessment of mercury in sharks (Rhizoprionodon longurio) caught in the coastal zone of Northwest Mexico

  • Martín G. Frías-EspericuetaEmail author
  • Jorge Ruelas-Inzunza
  • Rubén Benítez-Lizárraga
  • Ofelia Escobar-Sánchez
  • C. Cristina Osuna-Martínez
  • Carolina G. Delgado-Alvarez
  • Marisela Aguilar-Juárez
  • J. Isidro Osuna-López
  • Domenico Voltolina
Original Article
  • 94 Downloads

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.

Keywords

Mercury Sharks Rhizoprionodon longurio Risk assessment 

Notes

Acknowledgements

The authors thank the program Cátedras CONACYT through project Number 2137. Karla Sánchez and Yovani Montaño helped with technical work, and Diana Fischer with editorial services in English. This study was supported by projects Programa de Fomento y Apoyo a Proyectos de Investigación UAS 2012/059, Programa para el Desarrollo Profesional Docente CANE (year 3) and Consejo Nacional de Ciencia y Tecnología INFRA 2012-01-188029.

Compliance with ethical standards

Conflict of interest

The authors declare that they have no conflict of interest.

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Copyright information

© Bundesamt für Verbraucherschutz und Lebensmittelsicherheit (BVL) 2019

Authors and Affiliations

  • Martín G. Frías-Espericueta
    • 1
    Email author
  • Jorge Ruelas-Inzunza
    • 2
  • Rubén Benítez-Lizárraga
    • 1
  • Ofelia Escobar-Sánchez
    • 3
  • C. Cristina Osuna-Martínez
    • 1
  • Carolina G. Delgado-Alvarez
    • 4
  • Marisela Aguilar-Juárez
    • 1
  • J. Isidro Osuna-López
    • 1
  • Domenico Voltolina
    • 5
  1. 1.Facultad de Ciencias del Mar, Universidad Autónoma de SinaloaMazatlánMexico
  2. 2.Instituto Tecnológico de MazatlánMazatlánMexico
  3. 3.Consejo Nacional de Ciencia y Tecnología (CONACYT), Dirección de Cátedras CONACYTMexico CityMexico
  4. 4.Universidad Politécnica de SinaloaMazatlánMexico
  5. 5.CIBNOR-UASMazatlánMexico

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