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

IF 3.6 3区医学 Q2 BIOCHEMISTRY & MOLECULAR BIOLOGY

Journal of Trace Elements in Medicine and Biology Pub Date : 2025-04-30 DOI:10.1016/j.jtemb.2025.127664

Barış Bayraklı , Mutlu Altuntas

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引用次数: 0

Abstract

Background

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 season-dependent 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.

查看原文本刊更多论文

大西洋鲣鱼微量元素和有毒金属的大小和月依赖性生物积累（Sarda Sarda, Bloch, 1793）：对营养安全和环境健康的影响

微量元素作为微量元素（如Cu、Fe、Se、Zn）或有毒污染物（如Hg、as）在海洋生态系统和人类健康中发挥着双重作用。本研究调查了14种微量元素在具有重要商业价值和生态价值的沙蚤体内的生物积累，以评估其大小和季节依赖性趋势及其对环境健康和营养安全的影响。方法本研究于2023年9月、10月和11月在土耳其Sinop渔场按体型分类（小、中、大，基于体长和体重）每月取样，研究了重金属（汞（Hg）、铅（Pb）、镉（Cd）、铬（Cr）、镍（Ni））和微量元素(砷（As）、锌（Zn）、铁（Fe）、硒（Se）、铜（Cu）、锰（Mn）、铝（Al）、硼（B)、锂（Li））在Sarda Sarda个体中的生物积累情况。采用电感耦合等离子体质谱法（ICP-MS）对肌肉组织中的金属浓度进行定量，并采用严格的质量保证方案。计算健康风险指数（EDI、THQ、TTHQ、CRR、ADC、CDR、HBVSe）来评估饮食暴露风险。结果shg和As水平随鱼的大小呈大小依赖趋势显著增加（p <； 0.05），反映了营养放大效应，而Li呈反比关系，越小的鱼体内浓度越高。季节性动态scu、Mn和Se在9月达到峰值。Pb和Cd未检出（<0.005 mg/kg），表明人为污染程度较低。健康风险所有金属均低于国际安全阈值。结论本研究强调了生物因素（鱼类大小、营养地位）和环境因素（季节性污染物通量）对沙颡鱼微量元素生物积累的双重影响。虽然目前的水平对健康构成的风险很小，但主动监测对于解决新出现的污染物和确保可持续渔业管理至关重要。这些发现为过渡性海洋生态系统的适应性监测框架提供了模板。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Trace Elements in Medicine and Biology 医学-内分泌学与代谢

CiteScore

6.60

自引率

2.90%

发文量

202

审稿时长

85 days

期刊介绍： The journal provides the reader with a thorough description of theoretical and applied aspects of trace elements in medicine and biology and is devoted to the advancement of scientific knowledge about trace elements and trace element species. Trace elements play essential roles in the maintenance of physiological processes. During the last decades there has been a great deal of scientific investigation about the function and binding of trace elements. The Journal of Trace Elements in Medicine and Biology focuses on the description and dissemination of scientific results concerning the role of trace elements with respect to their mode of action in health and disease and nutritional importance. Progress in the knowledge of the biological role of trace elements depends, however, on advances in trace elements chemistry. Thus the Journal of Trace Elements in Medicine and Biology will include only those papers that base their results on proven analytical methods. Also, we only publish those articles in which the quality assurance regarding the execution of experiments and achievement of results is guaranteed.