Trace element concentrations in six fish species from freshwater lentic environments and evaluation of possible health risks according to international standards of consumption

To determine if bearded seals (Erignathus barbatus) harvested near a zinc and lead mine (Red Dog, Alaska , USA) by subsistence hunters from Kivalina, Alaska, were as safe to eat as bearded seals from other locations in Alaska, we compared 19 trace element concentrations in liver tissue. Liver concentrations from nine bearded seals harvested near the Red Dog Mine (RDM) port site were compared with 15 bearded seals from two reference sites (Hooper Bay and Little Diomede, Alaska, USA). Concentrations did not differ by gender, but we found statistically significant trends in concentrations of cadmium, mercury, manganese, selenium, and vanadium with age. Arsenic and copper were the only elements found to be more concentrated in the liver of bearded seals harvested near RDM than in the other locations. The predominant form of arsenic in marine mammals is known to be a nontoxic organic form, not the toxic inorganic form, and copper is an essential element. Although elevated near RDM, neither element was found at concentrations that presented health risks. We found no evidence that bearded seals harvested near RDM were less safe to eat or that trace element concentrations were greater than those found in bearded seals harvested elsewhere in Alaska or Canada.

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Evaluation of Trace Element Contaminations in the Skin Tissue of Rutilus kutum (Kamensky, 1901) From the South of the Caspian Sea

Journal of Advances in Environmental Health Research ◽

10.32598/jaehr.9.2.1201 ◽

2021 ◽

Vol 9 (2) ◽

pp. 139-148

Author(s):

Mohammad Forouhar Vajargah ◽

◽

Masoud Sattari ◽

Javid Imanpour Namin ◽

Mehdi Bibak ◽

...

Keyword(s):

Trace Element ◽

Human Health ◽

Fish Species ◽

Caspian Sea ◽

Skin Tissue ◽

Icp Oes ◽

The South ◽

The Caspian Sea ◽

Element Concentrations

Background: The Caspian Sea is surrounded by Kazakhstan, Azerbaijan, Iran, Turkmenistan, and Russia. Rutilus kutum is a highly steamed fish species caught from the South Caspian Sea, but little data available on Trace Element (TE) concentrations in its skin. Methods: We caught 51 R. kutum from three stations (i.e., Anzali, Astara, and Kiashahr) in the southern shoreline of the Caspian Sea from September 2017 to January 2018, and ICP-OES was used to assay TE concentrations in their skin. Results: The Trace Element Concentrations (TECs) measured in the skin (except for potassium) did not display significant differences between the stations and only the concentration of potassium was higher in Kiashahr than in other areas. Conclusion: TE levels in the R. kutum skin were lower than those in the previous reports from the Caspian Sea, which could not result in any risk to human health.

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Toxic and essential trace element concentrations in fish species in the Lower Amazon, Brazil

The Science of The Total Environment ◽

10.1016/j.scitotenv.2020.138983 ◽

2020 ◽

Vol 732 ◽

pp. 138983 ◽

Cited By ~ 2

Author(s):

Fabio Edir Amaral Albuquerque ◽

Antonio Humberto Hamad Minervino ◽

Marta Miranda ◽

Carlos Herrero-Latorre ◽

Raimundo Alves Barrêto Júnior ◽

...

Keyword(s):

Trace Element ◽

Fish Species ◽

Essential Trace Element ◽

Element Concentrations

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Discrimination of trait-based characteristics by trace element bioaccumulation in riverine fishes

Canadian Journal of Fisheries and Aquatic Sciences ◽

10.1139/f08-036 ◽

2008 ◽

Vol 65 (6) ◽

pp. 1087-1100 ◽

Cited By ~ 4

Author(s):

Terry M. Short ◽

Lawrence R. Deweese ◽

Neil M. Dubrovsky

Keyword(s):

Trace Elements ◽

Trace Element ◽

Fish Species ◽

Open Water ◽

Strong Relationship ◽

Species Traits ◽

Contaminant Exposure ◽

Element Concentrations ◽

Relative Differences ◽

Large Adult

Relations between tissue trace element concentrations and species traits were examined for 45 fish species to determine the extent to which trait-based characteristics accounted for relative differences among species in trace element bioaccumulation. Percentages of fish species correctly classified by discriminant analysis according to traits predicted by tissue trace element concentrations ranged from 72% to 87%. Tissue concentrations of copper, mercury, selenium, and zinc appeared to have the greatest overall influence on differentiating species according to trait characteristics. Discrimination of trait characteristics did not appear to be strongly influenced by local sources of trace elements in the streambed sediment. Bioaccumulation was greatest for those species classified as primarily detritivores, having relatively large adult body size, considered nonmigratory with respect to reproductive strategy, occurring mostly in large or variable size streams and rivers, preferring depositional areas within the stream channel, and preferring benthic rather than open-water habitats. Our findings provide evidence of the strong relationship between bioaccumulation of environmental trace elements and trait-based factors that influence contaminant exposure.

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