Accumulation of mercury in muscle of orange-spotted spinefoot(Siganus guttatus Bloch, 1787) by age and season in the coastal Quang Binh

Van Thiep Vo, Thi Thu Phuong Le, Thi Huong Binh Nguyen
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Abstract

Orange-spotted spinefoot (Siganus guttatus) is not only a fish with high economic value, rich in nutrients, but also popular with people for consumption. This research was carried out from November 2021 to May 2022, in the coastal and estuaries of Quang Binh province. A total of 60 samples of orange-spotted spinefoot were collected by age group, wet season, and dry season to analyse the accumulation of mercury (Hg) in their muscles. The Hg concentration was analysed by cold vapour atomic absorption spectroscopy. Research results showed a strong correlation between the length and weight of fish both in the wet and dry seasons. The age group has a strong influence on the accumulation of Hg in their muscles, the older fish group has a higher aggregation of Hg than the younger fish group. Although the average value of Hg concentration in the muscle of orange-spotted spinefoot in the dry season is higher than in the wet season, analysis results of “Tukey’s HSD test” showed that there was no significant difference.
广平沿海桔斑棘脚鹦鹉(Siganus guttatus Bloch, 1787)肌肉中按年龄和季节划分的汞积累情况
橙斑脊鳍鱼(Siganus guttatus)不仅经济价值高、营养丰富,而且深受人们的喜爱。这项研究于 2021 年 11 月至 2022 年 5 月在广平省沿海和河口进行。研究人员按年龄组、雨季和旱季收集了 60 份橙斑脊鳍鱼样本,分析其肌肉中汞的积累情况。汞浓度通过冷蒸气原子吸收光谱进行分析。研究结果表明,在雨季和旱季,鱼的体长和体重之间都有很强的相关性。鱼的年龄组对其肌肉中汞的积累有很大影响,年龄较大的鱼类比年龄较小的鱼类体内汞的聚集度更高。虽然旱季橙斑脊鳍鱼肌肉中汞浓度的平均值高于雨季,但 "Tukey's HSD 检验 "的分析结果表明两者没有显著差异。
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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