Integrated assessment with biomarker responses and metal concentrations on some fish species from İzmir Bay: A preliminary investigation

Mustafa Bilgin, Esin Uluturhan-Suzer, E. Darılmaz
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Abstract

Antioxidant related biomarkers (superoxide dismutase, catalase, malondialdehyde) were investigated to evaluate metal (Hg, Cd, Pb, Cr, Cu, Zn, and Mn) bioaccumulation in some organs of fish species (Sparus aurata, Chelon labrosus, Diplodus vulgaris) from the İzmir Bay. Samples were collected at November 2019 from Inner and Outer Bays. Metal and biomarker analyses were carried out by Atomic Absorption Spectrometer and microplate reader, respectively. For metal analyses in organs, higher metal bioaccumulations were found at liver tissues. Higher Hg and Zn concentrations were found in S. aurata, higher Cd, Cr, Cu and, Mn concentrations were detected in C. labrosus and higher Pb concentrations were determined in D. vulgaris. In biomarker results, superoxide dismutase (SOD) and catalase (CAT) activities were generally higher in gills, however, MDA contents were higher at liver. The highest biomarker results were detected at C. labrosus. Statistical analyses were demonstrated that especially MDA content were expressed strong responses for the metal bioaccumulations. Also, Mn levels were considerably correlated with all biomarkers as expected. This study revealed that combined utilization of biomarkers and metal concentrations could be a vital indicator to investigate health status of the marine ecosystems.
İzmir湾部分鱼类生物标志物反应和金属浓度综合评价的初步调查
研究了İzmir湾几种鱼类(Sparus aurata, Chelon labrosus, Diplodus vulgaris)的抗氧化相关生物标志物(超氧化物歧化酶,过氧化氢酶,丙二醛)对金属(Hg, Cd, Pb, Cr, Cu, Zn, Mn)在某些器官中的生物积累情况。样本于2019年11月从内湾和外湾采集。金属和生物标志物分析分别用原子吸收光谱仪和微孔板阅读器进行。对于器官中的金属分析,在肝脏组织中发现了较高的金属生物积累。金银花中汞、锌含量较高,花楸中镉、铬、铜、锰含量较高,花楸中铅含量较高。在生物标志物结果中,超氧化物歧化酶(SOD)和过氧化氢酶(CAT)活性在鳃中普遍较高,而MDA含量在肝脏中较高。在C. labrosus中检测到最高的生物标志物结果。统计分析表明,特别是丙二醛含量对金属的生物积累表现出强烈的响应。此外,正如预期的那样,锰水平与所有生物标志物都有很大的相关性。该研究表明,生物标志物和金属浓度的联合利用可以作为研究海洋生态系统健康状况的重要指标。
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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