Risk assessment of mercury in sharks (Rhizoprionodon longurio) caught in the coastal zone of Northwest Mexico
| Autor: | Marisela Aguilar-Juárez, C. Cristina Osuna-Martínez, Martín G. Frías-Espericueta, Ofelia Escobar-Sánchez, Domenico Voltolina, J. Isidro Osuna-López, Jorge Ruelas-Inzunza, C. G. Delgado-Alvarez, Rubén Benítez-Lizárraga |
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| Rok vydání: | 2019 |
| Předmět: |
0106 biological sciences
biology 010604 marine biology & hydrobiology Rhizoprionodon chemistry.chemical_element 010501 environmental sciences biology.organism_classification 01 natural sciences Hazard quotient Mercury (element) Animal science Food Animals Dry weight chemistry Coastal zone Environmental science Cold vapour atomic fluorescence spectroscopy Agronomy and Crop Science 0105 earth and related environmental sciences Food Science Biotechnology |
| Zdroj: | Journal of Consumer Protection and Food Safety. 14:349-354 |
| ISSN: | 1661-5867 1661-5751 |
| DOI: | 10.1007/s00003-019-01232-6 |
| Popis: | Adult sharpnose sharks (Rhizoprionodon longurio) with a mean total length of 110.93 ± 5.30 cm were obtained from a local fishery in Mazatlan (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. |
| Databáze: | OpenAIRE |
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