宗加阿拉套山地河流(哈萨克斯坦)和西喀尔巴阡山脉(斯洛伐克)刮食者(蜉蝣目)和捕食者(褶翅目)体内微量元素的变化。

IF 5.8 3区 环境科学与生态学 0 ENVIRONMENTAL SCIENCES Environmental Science and Pollution Research Pub Date : 2024-11-12 DOI:10.1007/s11356-024-35527-5
Jaroslav Solár, Martina Haas, Patrik Pánik, Berikzhan Oxikbayev, Aibek Abduakassov
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引用次数: 0

摘要

水生环境中微量元素的生物累积会受到当地环境条件的影响,如温度波动、pH 值、沉积物成分、溶解有机物含量以及其他化学物质的存在。我们分析了从哈萨克斯坦和斯洛伐克山区溪流中采集的淡水底栖大型无脊椎动物的两个营养类群--捕食者(蜉蝣目)和掠食者(褶翅目)--在微量元素(S、Cl、K、Ca、Ti、Cr、Mn、Fe、Cu、Zn、Rb、Sr、Mo、Ba 和 Pb)积累方面的差异。使用 X 射线光谱仪分析了干燥昆虫尸体中的微量元素,并对每个采样点的溪水理化参数进行了调查。结果表明,哈萨克斯坦捕食者体内的铁、钛和锶含量与斯洛伐克捕食者体内的铜含量存在明显差异。尽管某些微量元素在一个组别的浓度高于另一个组别的浓度,但地区之间的总体差异更为明显。主成分分析(PCA)显示,影响微量元素变化的主要因素与环境条件有关,如温度、氧气水平和总溶解固体(TDS)。主成分分析表明,在温度较高、含氧量较低的溪流中,特别是在哈萨克斯坦,痕量元素的负荷较高。这些研究结果表明,生物因素(摄食策略)和非生物因素(地理和环境条件)对淡水生态系统中的微量元素动态具有重要影响。
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Variability of trace elements in bodies of scrapers (Ephemeroptera) and predators (Plecoptera) from mountain rivers of Dzungarian Alatau (Kazakhstan) and Western Carpathians (Slovakia).

Bioaccumulation of trace elements in aquatic environments can be influenced by local environmental conditions such as temperature fluctuations, pH levels, sediment composition, dissolved organic matter content, and the presence of other chemical substances. We analyzed the differences in trace elements accumulation (S, Cl, K, Ca, Ti, Cr, Mn, Fe, Cu, Zn, Rb, Sr, Mo, Ba, and Pb) between two trophic guilds-scrapers (Ephemeroptera) and predators (Plecoptera)-of freshwater benthic macroinvertebrates collected from mountain streams in Kazakhstan and Slovakia. Trace elements in dried insect bodies were analyzed using an X-ray spectrometer, and physicochemical parameters of stream water were investigated at each sampling site. Our results showed significant differences in Fe, Ti, and Sr levels in predators from Kazakhstan and Cu levels in predators from Slovakia. Despite some trace elements showing higher concentrations in one group over another, the overall differences between regions were more pronounced. Principal component analysis (PCA) revealed that the primary factors influencing trace elements variability were associated with environmental conditions such as temperature, oxygen levels, and total dissolved solids (TDS). PCA components indicated a higher load of trace elements in the warmer, less oxygenated streams, particularly in Kazakhstan. These findings suggest that both biotic (feeding strategies) and abiotic (geographical and environmental conditions) factors significantly influence trace elements dynamics in freshwater ecosystems.

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来源期刊
CiteScore
8.70
自引率
17.20%
发文量
6549
审稿时长
3.8 months
期刊介绍: Environmental Science and Pollution Research (ESPR) serves the international community in all areas of Environmental Science and related subjects with emphasis on chemical compounds. This includes: - Terrestrial Biology and Ecology - Aquatic Biology and Ecology - Atmospheric Chemistry - Environmental Microbiology/Biobased Energy Sources - Phytoremediation and Ecosystem Restoration - Environmental Analyses and Monitoring - Assessment of Risks and Interactions of Pollutants in the Environment - Conservation Biology and Sustainable Agriculture - Impact of Chemicals/Pollutants on Human and Animal Health It reports from a broad interdisciplinary outlook.
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