金属在淡水新热带鱼巴西丽体鱼中的生物富集和生物累积
Bioconcentration and bioaccumulation of metal in freshwater Neotropical fish Geophagus brasiliensis.
作者信息
Voigt Carmen Lúcia, da Silva Cleber Pinto, Doria Halina Binde, Randi Marco Antônio Ferreira, de Oliveira Ribeiro Ciro Alberto, de Campos Sandro Xavier
机构信息
Research Group on Environmental and Sanitary Analytical Chemistry (QAAS), Ponta Grossa State University (UEPG), PO Box: 992, Av. General Carlos Cavalcanti, 4748, Ponta Grossa, PR, 84030-900, Brazil,
出版信息
Environ Sci Pollut Res Int. 2015 Jun;22(11):8242-52. doi: 10.1007/s11356-014-3967-4. Epub 2014 Dec 19.
From the concentration in water and sediments, bioconcentration and bioaccumulation of copper (Cu), manganese (Mn), zinc (Zn), iron (Fe), cobalt (Co), cadmium (Cd), chrome (Cr), silver (Ag), lead (Pb), nickel (Ni), aluminum (Al), and arsenic (As) were determined in the gills, liver, and muscles of Geophagus brasiliensis in the Alagados Reservoir, Ponta Grossa, Paraná, Brazil. Metals were quantified through AAS, and a study was carried out on the existing relations between metal and body weight, size, and genre of this species. The level of metal in the water of the reservoir was lower than the maximum set forth in the legislation, except for that of Cd and Fe. In sediments, Cu, Cd, Cr, and Ni presented concentrations above the threshold effect level (TEL). Pb and Cr were above the limits for the G. brasiliensis. The tendency of metals present in the muscles of G. brasiliensis was Al > Cu > Zn > Fe > Co > Mn > Cr > Ag > Ni > Pb > Cd > As. In the gills, it was Al > Fe > Zn > Mn > Co > Ag > Cr > Ni > Cu > As > Pb > Cd, and the liver presented Al > Cu > Zn > Co > Fe > Mn > Pb > Ag > Ni > Cr > As > Cd. The bioconcentration and bioaccumulation of metal in the tissues follow the global tendency liver > gills > muscle. The statistical analysis did not point to significant differences in the metal concentration and body weight, size, and gender of the species in the three tissues under analysis.
根据巴西巴拉那州蓬塔格罗萨阿拉加多斯水库巴西丽体鱼鳃、肝脏和肌肉中铜（Cu）、锰（Mn）、锌（Zn）、铁（Fe）、钴（Co）、镉（Cd）、铬（Cr）、银（Ag）、铅（Pb）、镍（Ni）、铝（Al）和砷（As）在水中和沉积物中的浓度，测定了这些金属的生物富集和生物累积情况。通过原子吸收光谱法对金属进行定量，并对该物种金属与体重、体型和性别的现有关系进行了研究。水库水中的金属含量低于立法规定的最大值，但镉和铁除外。在沉积物中，铜、镉、铬和镍的浓度高于阈值效应水平（TEL）。铅和铬超过了巴西丽体鱼的限量。巴西丽体鱼肌肉中金属的含量趋势为铝＞铜＞锌＞铁＞钴＞锰＞铬＞银＞镍＞铅＞镉＞砷。在鳃中，含量趋势为铝＞铁＞锌＞锰＞钴＞银＞铬＞镍＞铜＞砷＞铅＞镉，而肝脏中的含量趋势为铝＞铜＞锌＞钴＞铁＞锰＞铅＞银＞镍＞铬＞砷＞镉。金属在组织中的生物富集和生物累积遵循肝脏＞鳃＞肌肉这一总体趋势。统计分析表明，在所分析的三种组织中，该物种的金属浓度与体重、体型和性别之间没有显著差异。
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