Size- and month-dependent bioaccumulation of trace elements and toxic metals in atlantic bonito (Sarda sarda, Bloch, 1793): Implications for nutritional security and environmental health

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dc.contributor.authorBayrakli, Baris
dc.contributor.authorAltuntas, Mutlu
dc.date.accessioned2026-04-25T14:19:57Z
dc.date.available2026-04-25T14:19:57Z
dc.date.issued2025
dc.departmentSinop Üniversitesi
dc.description.abstractBackground: Trace elements play dual roles in marine ecosystems and human health, acting as trace elements (e. g., Cu, Fe, Se, Zn) or toxic contaminants (e.g., Hg, As). This study investigates the bioaccumulation of 14 trace elements in Sarda sarda, a commercially and ecologically important species, to evaluate size- and seasondependent trends and their implications for environmental health and nutritional security. Methods: This study investigated the bioaccumulation of heavy metals (mercury (Hg), lead (Pb), cadmium (Cd), chromium (Cr), nickel (Ni)) and trace elements (arsenic (As), zinc (Zn), iron (Fe), selenium (Se), copper (Cu), manganese (Mn), aluminum (Al), boron (B), lithium (Li)) in Sarda sarda individuals categorized by size classes (small, medium, large, based on body length and weight) sampled monthly from the Sinop fishery, Turkey, in September, October, and November 2023. Metal concentrations were quantified in muscle tissue using inductively coupled plasma mass spectrometry (ICP-MS) with strict quality assurance protocols. Health risk indices (EDI, THQ, TTHQ, CRR, ADC, CDR, HBVSe) were calculated to assess dietary exposure risks. Results size-dependent trends: Hg and As levels increased significantly with fish size (p < 0.05), reflecting trophic magnification, while Li exhibited an inverse relationship, with higher concentrations in smaller fish. Seasonal dynamics: Cu, Mn, and Se peaked in September. Pb and Cd were undetectable (<0.005 mg/kg), indicating low anthropogenic contamination. Health risks: All metals fell below international safety thresholds. Conclusion: This study highlights the dual influence of biological (fish size, trophic position) and environmental (seasonal pollutant fluxes) factors on trace element bioaccumulation in Sarda sarda. While current levels pose minimal health risks, proactive monitoring is essential to address emerging contaminants and ensure sustainable fisheries management. These findings provide a template for adaptive monitoring frameworks in transitional marine ecosystems.
dc.identifier.doi10.1016/j.jtemb.2025.127664
dc.identifier.issn0946-672X
dc.identifier.issn1878-3252
dc.identifier.pmid40359653
dc.identifier.scopus2-s2.0-105004667420
dc.identifier.scopusqualityQ2
dc.identifier.urihttps://doi.org/10.1016/j.jtemb.2025.127664
dc.identifier.urihttps://hdl.handle.net/11486/8285
dc.identifier.volume89
dc.identifier.wosWOS:001491974200001
dc.identifier.wosqualityQ2
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.indekslendigikaynakPubMed
dc.language.isoen
dc.publisherElsevier Gmbh
dc.relation.ispartofJournal of Trace Elements in Medicine and Biology
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_WOS_20260420
dc.subjectSarda sarda
dc.subjectMetal bioaccumulation
dc.subjectBlack sea
dc.subjectHealth risk assessment
dc.subjectSelenium
dc.subjectMercury
dc.titleSize- and month-dependent bioaccumulation of trace elements and toxic metals in atlantic bonito (Sarda sarda, Bloch, 1793): Implications for nutritional security and environmental health
dc.typeArticle

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