首页> 外文期刊>International Journal of Marine Science >Total Hydrocarbon and Heavy Metal Concentrations in Body Parts of Fiddler Crab ( Uca tangeri ) ( Ocipodidae ) in the Niger Delta, Nigeria
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Total Hydrocarbon and Heavy Metal Concentrations in Body Parts of Fiddler Crab ( Uca tangeri ) ( Ocipodidae ) in the Niger Delta, Nigeria

机译:在尼日利亚尼日尔三角洲的小斗蟹(UCA Tangeri)(UCA曲折)(UCAIPODIDAE)的身体部位总碳氢化合物和重金属浓度

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This study is based on the hypothesis that the burrowing habit of fiddler crabs in polluted environment will predispose them to heavy metal contamination. The study was carried out in Eagle Island, a mangrove community. Thirty fiddler crabs ( Uca tangeri ) were captured by hand and butchered into parts and oven dried at 70°C for 48 hours. They were sent to laboratory to determine total hydrocarbon content (THC), Cadmium (Cd), Zinc (Zn) and Lead (Pb) concentrations. The laboratory procedure involved measurement by spectrophotometric method using the HACH DR 890 colorimeter (wavelength 420 nm) for heavy metals and microwave accelerated reaction system (MARS Xpress, North Carolina) for THC. The result indicate that there was no significant difference in THC and heavy metal concentration between crab parts (F 6, 49 = 0.32, P=0.925). However, Zinc had the highest concentration in the crab parts followed by Lead and Cadmium. Zinc was the highest in body tissue (83.57±17.04) mg/L followed by intestine (70.59±1.54) mg/L and ventral shell (67.44±1.1) mg/L. Lead was highest in ventral shell (44.5±34.5) mg/L while Cadmium was highest in carapace (10.02±3.99) mg/L. The order of concentration in the body parts of U. tangeri is ZnPbCdTHC. THC and Lead were higher in males than in females while Zinc and Cadmium were higher in females. External parts have higher THC, Cd and Pb while internal parts have higher Zn. This result indicates that heavy metals bioaccumulated in fiddler crabs, which can get biomagnified in humans if consumed.
机译:本研究基于假设,即污染环境中小提琴螃蟹的挖掘习惯将使他们倾向于重金属污染。该研究是在红树林群落的鹰岛进行的。手工捕获三十个小笛蟹(UCA Tangeri),并将其屠宰成零件,烘箱在70°C下干燥48小时。将它们送到实验室以确定总烃含量(THC),镉(CD),锌(Zn)和铅(PB)浓度。实验室程序涉及使用SpectoPolic方法使用HACH DR 890色度计(波长420nm)进行分光光度法测量,用于重金属和微波加速的反应系统(Mars Xpress,北卡罗来纳州)的THC。结果表明,蟹份(F 6,49 = 0.32,P = 0.925)之间的THC和重金属浓度无显着差异。然而,锌含有铅和镉的含量最高。锌在身体组织中最高(83.57±17.04)Mg / L,然后是肠(70.59±1.54)Mg / L和腹壳(67.44±1.1)mg / L.腹壳中的铅(44.5±34.5)mg / L最高,而镉在甲状腺上最高(10.02±3.99)mg / L. U. Tangeri身体部位的浓度顺序为Zn> Pb> CD> THC。男性比女性高于女性,锌和镉在女性中较高。外部部件具有更高的THC,CD和PB,而内部部件具有更高的Zn。该结果表明,如果消耗的话,可以在人类中获得生物狼疮的重金属生物累积。

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