Element concentrations of large rainbow trout (Oncorhynchus mykiss) in the Black Sea: selenium-mercury balance and the risk assessments for consumer health

Abstract

This research determined the element values, selenium, and mercury balance of the large rainbow trout (Oncorhynchus mykiss) cultured in the Black Sea and the possible health risk for the consumer. By the end of the investigation, the concentration of components in these cultivated large rainbow trout in the Black Sea met the requirements specified by national and international legislation. According to analyses of the hazard risk associated with consuming, it has been determined that independent of nutritional quality, large rainbow trout produced on Turkey’s Black Sea coast offers no risk to human consumption regarding element values and may be ingested safely.

HIGHLIGHTS

• Health risks associated with the consumption of large rainbow trout in the Black Sea were assessed.

• Particularly Se had a protective effect against the effects of Hg on human health.

• EDI, THQ, and CR_mm values did not pose a risk to human health.

• Biomagnification factors were low except Hg.

Keywords:

• Biomagnification factor
• Black Sea
• Oncorhynchus mykiss
• risk assessment
• selenium/mercury molar ratio

Acknowledgments

I thank Sagun Aquaculture Company (in Sinop Türkiye) for providing the experimental fish and feed samples.

Ethical approval

The fish were sampled by the operating personnel while they were harvested. Therefore this manuscript does not need ethical approval. Not applicable.

Consent to publish

The author agrees with the research.

Author contributions

The author contributed to the research conception and design. Material preparation. data collection and analysis were performed by Dr. Dilara Kaya Öztürk. The first draft of the manuscript was written by Dr. Dilara Kaya Öztürk. The author read and approved the final manuscript.

Disclosure statement

No potential conflict of interest was reported by the author(s).

Data availability statement

All data generated or analyzed during this research are included in this published article.

Additional information

Funding

The author declares that no funds, grants, or other support were received during the preparation of this manuscript.