Hg and Se in Muscle and Liver of Blue Shark (Prionace glauca) from the Entrance of the Gulf of California: An Insight to the Potential Risk to Human Health

The blue shark ( Prionace glauca ) is the most commonly caught species of Elasmobranchii at the entrance to the Gulf of California. Although fins are the primary target commodity, the entire organism is consumed. This study examined the concentration of Hg and Se in muscle and liver to understand th...

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Bibliographic Details
Published in:Archives of environmental contamination and toxicology 2024-02, Vol.86 (2), p.165-177
Main Authors: Rechimont, M. E., Ruelas-Inzunza, J., Amezcua, F., Paéz-Osuna, F., Castillo-Géniz, J. L.
Format: Article
Language:English
Subjects:
Animals
Archives & records
Atomic absorption spectrophotometry
Commercial fishing
Earth and Environmental Science
Ecotoxicology
Environment
Environmental Chemistry
Environmental Health
Environmental Monitoring
Fins
Fish
Fisheries
Health risks
Humans
Liver
Liver - chemistry
Mercury - analysis
Metabolism
Monitoring/Environmental Analysis
Muscles
Muscles - chemistry
Physiology
Pollutants
Pollution
Prionace glauca
Seafood
Selenium
Selenium - analysis
Sharks
Soil Science & Conservation
Spectral analysis
Spectrophotometry
Toxicity
Toxicology
Water Pollutants, Chemical - analysis
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Summary:The blue shark ( Prionace glauca ) is the most commonly caught species of Elasmobranchii at the entrance to the Gulf of California. Although fins are the primary target commodity, the entire organism is consumed. This study examined the concentration of Hg and Se in muscle and liver to understand the antagonistic process that occurs between these two elements within the organism. Twenty-two individuals were captured at the Gulf of California inlet between September 2019 and March 2021. Hg was measured by cold vapor atomic absorption, and Se by atomic absorption spectrophotometry in a graphite furnace. All individuals studied showed higher concentrations (µg g −1 wet weight) of Hg (0.69) and Se (2.49) in liver than in muscle (Hg 0.63 and Se 0.08). Although the mean Hg values were below the maximum allowable limits (Hg 1.0 µg g −1 wet weight), the molar ratio (
ISSN:0090-4341
1432-0703
DOI:10.1007/s00244-024-01054-0