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Condition and Sperm Characteristics of Perch Perca fluviatilis inhabiting Boreal Lakes Receiving Metal Mining Effluents.

受金属开采流出物的北方湖泊栖息河豚的条件和精子特征。

  • 影响因子:2.62
  • DOI:10.1007/s00244-020-00752-9
  • 作者列表:"Karjalainen J","Arola HE","Wallin J","Väisänen A","Karjalainen AK
  • 发表时间:2020-08-01
Abstract

:One of the world's largest, but low-grade, sulfide nickel deposits in northeastern Finland has been exploited by a bioheapleaching technology since 2008. Bioheapleaching is a relatively new, cost-effective technology, but humid climate, e.g., in boreal temperate environments, causes challenges to the management of the water balance in the ore heaps with wide catchment area, and the mining effluents have caused substantial metal and salting contamination of the receiving waterbodies. In our study, the impacts of metal-extracting bioheapleaching mine effluents on muscle and liver element concentrations, body condition, liver and testes mass, and sperm count and motility of male perch Perca fluviatilis were analysed. Liver, testes, and carcass mass of perch in relation to their length were lower in the mining-impacted lakes than in the reference lake, which may be due to the metal contamination, food availability, and energy demand under multistressor conditions. The sperm counts of the males in the mining-impacted lakes were lower, but the endurance of their sperm motility was longer than the endurance of sperm of the reference males. These findings suggested that the condition and sperm characteristics of perch were altered in lakes receiving metal mining effluents. Measured variables seem to be useful indicators for metal mining impacts on freshwater fish but only if high natural variation in these characteristics can be controlled by multiyear monitoring scheme.

摘要

: 芬兰东北部世界上最大但低品位的硫化物镍矿床之一,自2008年以来一直采用生物浓缩技术进行开采。生物堆是一种相对较新的、具有成本效益的技术,但是潮湿的气候,例如,在北方温带环境中,会对具有广阔集水区的矿堆中的水平衡管理造成挑战,并且采矿流出物已经导致接收水体的大量金属和盐析污染。在我们的研究中,分析了金属提取生物浸出矿流出物对雄性河豚肌肉和肝脏元素浓度、身体状况、肝脏和睾丸质量以及精子数量和活力的影响。受采矿影响的湖泊中鲈鱼的肝脏、睾丸和胴体质量与其长度相关,低于参考湖泊,这可能是由于金属污染、食物可用性和多应激条件下的能量需求。受采矿影响的湖泊中男性的精子数量较低,但其精子活力的耐力长于参考男性的精子耐力。这些发现表明,在接受金属矿废水的湖泊中,鲈鱼的状况和精子特征发生了改变。测量变量似乎是金属开采对淡水鱼影响的有用指标,但前提是这些特征的高自然变化可以通过多年监测方案来控制。

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影响因子:1.78
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DOI:10.1111/and.13378
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翻译标题与摘要 下载文献
影响因子:1.78
发表时间:2020-02-01
来源期刊:Andrologia
DOI:10.1111/and.13450
作者列表:["Rahimi Kalateh Shah Mohammad G","Karimi E","Oskoueian E","Homayouni-Tabrizi M"]

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翻译标题与摘要 下载文献
影响因子:1.78
发表时间:2020-02-01
来源期刊:Andrologia
DOI:10.1111/and.13451
作者列表:["Khazaei M","Asgari R","Bakhtiari M"]

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