Some Heavy metals measurements (Cadmium, Copper, and Zinc) in the tissues of common carp Cyprinus carpioL . 1758 farmed in floating cages in the Euphrates River.

Abstract

The current study examined the concentrations of three heavy metals (cadmium, copper, and zinc) in the tissues of common carp fish. (gills-musclesintestines) collected from one of the private farms that raised fish in floating cages in the Euphrates River from 18/10/2021 to 18/3/2022. Every month, water samples were analyzed, as were fish tissue samples. Using an atomic absorption spectroscopy device, standard procedures were followed to assess the concentration of heavy metals in water and tissues. The results showed that the highest concentration of zinc, cadmium, and copper was detected in the water during the winter season, reaching (125.5-31.95-1.37) MKgm/L. The highest concentrations of cadmium in tissues were found in the autumn season for gills and muscles (1.58-0.81) mkgm/L dry weight, and the highest concentration in tissues (0.80) mkgm/L dry weight in the winter. The highest concentrations of copper were found in the gills and muscles, followed by the intestines. Where concentrations are at their highest in the autumn season (11-9.89, 12.31) mkgm/gm dry weight. As for zinc was found in high concentrations in the gills, intestines, and muscles, with the highest concentrations recorded in the autumn season (81.6-85-93 – 112) mkgm/gm dry weight. The results revealed that heavy metal accumulation occurred in the following pattern: Concentrations in water: cadmium

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鲤鱼组织中重金属镉、铜、锌的测定。1758年在幼发拉底河上养殖浮笼。

目前的研究检测了三种重金属(镉、铜和锌)在普通鲤鱼组织中的浓度。(鳃-肌肉-肠子)收集自幼发拉底河上一个私人养殖场，该养殖场于2021年10月18日至2022年3月18日在幼发拉底河上用浮动网箱养鱼。每个月，水样和鱼组织样本都会被分析。使用原子吸收光谱装置，按照标准程序评估水和组织中的重金属浓度。结果表明:冬季水体中锌、镉、铜的浓度最高，达到(125.5 ~ 31.95 ~ 1.37)MKgm/L;鱼鳃和肌肉组织中镉含量以秋季最高(1.58 ~ 0.81)mkgm/L干重)，冬季最高(0.80)mkgm/L干重。鱼鳃和肌肉中的铜含量最高，其次是肠道。其中秋季浓度最高(11-9.89,12.31)mkgm/gm干重。锌在鳃、肠和肌肉中含量较高，秋季含量最高(81.6-85-93 - 112)mkgm/gm干重。结果表明:水体中镉<铜<锌，组织中镉-鱼鳃-肌肉-肠-铜。锌-鳃-肠-肌肉。关键词:重金属，镉，铜，锌，鲤鱼，鲤

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