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首页> 外文期刊>Anais da Academia Brasileira de Ciências >Mercury content in the fur of jaguars (Panthera onca) from two areas under different levels of gold mining impact in the Brazilian Pantanal
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Mercury content in the fur of jaguars (Panthera onca) from two areas under different levels of gold mining impact in the Brazilian Pantanal

机译：在巴西爪子的不同水平下的两个地区，捷豹（Panthera Onca）中的汞含量来自两个地区的巴西爪子

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摘要

The Pantanal is the largest inland wetland in the world and is under increasing anthropogenic threats, including long-term regionally intensive gold mining practices. Gold mining activities are known to cause the release of harmful pollutants such as mercury (Hg) to the surrounding environment. Jaguars (Panthera onca (Linnaeus, 1758)) are apex predators, and therefore show great potential to accumulate Hg by biomagnification. We hypothesize that total Hg content in the fur of jaguars from two sites within the Brazilian Pantanal would be significantly different as a function of distance from active gold mining operations. The Hg content was determined by fluorescence spectrometry. The mean +/- SD Hg content in jaguars from the study site influenced by gold mining (SB) was compared to jaguars sampled in the area free of gold mining activities (CA) using a one-way ANOVA. The mean Hg content in jaguars from SB (673.0 +/- 916.8 mu g g(-1)) is significantly different from jaguars sampled in CA (29.7 +/- 23.3 mu g g(-1)), p = 0.03. The maximum recorded content of Hg was 2,010.4 +/- 150.5 mu g g(-1), highest level ever recorded in a wild animal. The data indicate that Hg is an important threat to jaguars within at-risk regions of the Pantanal.
机译：潘塔纳尔是世界上最大的内陆湿地，正在增加人为威胁，包括长期地区密集的金矿实践。众所周知，金矿活动将导致释放有害污染物，如汞（HG）到周围环境。 Jaguars（Panthera Onca（Linnaeus，1758））是顶点捕食者，因此通过生物磁化显示出累积HG的巨大潜力。我们假设巴西爪子内的两个站点的捷豹毛皮中的HG含量与距离主动金矿运营的距离有显着不同。通过荧光光谱法测定Hg含量。与金矿（SB）影响的研究网站的平均+/- SD HG含量与使用单向ANOVA在没有金矿活动（CA）的区域中采样的Jaguars进行比较。来自SB的JaguARS中的平均Hg含量（673.0 +/- 916.8 mu g（-1））与加纳中采样的Jaguars显着不同（29.7 +/-23.3μg（-1）），p = 0.03。 Hg的最大记录含量为2,010.4 +/- 150.5 mu g g（-1），在野生动物中记录的最高水平。这些数据表明，HG对爪子风险区域内的捷豹的重要威胁。

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