Impacts of invasive quagga mussels (Dreissena rostriformis bugensis) on reservoir water quality, as revealed by progressive-change BACIPS analysis.
Impacts of invasive quagga mussels (Dreissena rostriformis bugensis) on reservoir water quality, as revealed by progressive-change BACIPS analysis.
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DOI：
10.1016/j.watres.2021.117105
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发表时间：
2021-04
期刊：
影响因子：
12.8
通讯作者：
Sam A. Reynolds;D. Aldridge
中科院分区：
文献类型：
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作者：
Sam A. Reynolds;D. Aldridge
入侵白斑贻贝（Dreissena rostriformis bugensis）是淡水生态系统功能和管理的新威胁。斑驴贻贝于2014年首次在英国被记录，随后在许多主要水库中高密度地建立起来。通过实施渐进式变化BACIPS（控制影响前后配对系列）分析，我们发现在斑马贻贝建立后观察到以下趋势：硅藻和蓝藻丰度降低；可溶性活性磷和活性二氧化硅浓度增加；并减少了幻影现象的丰度。一种潜在有毒的蓝藻。我们还发现，已建立斑马贻贝种群的水库总体叶绿素a浓度略有增加，但浑浊度和微囊藻没有变化。丰度，通常被认为是德雷森氏菌入侵的常见指标。我们的研究结果表明，渐进式变化BACIPS分析是一个强大的工具，可以用来询问行业标准的长期水质指标数据集，以便在物种到达的大致时间框架已知时识别和量化入侵物种的影响。我们还证明，斑驴贻贝可能对水库生态系统有重大影响，主要是通过它们对浮游植物群落的影响，可能对水库管理有影响。
Invasive quagga mussels (Dreissena rostriformis bugensis)are an emerging threat to the functioning and management of freshwater ecosystems. Quagga mussels were first recorded in the UK in 2014 and have subsequently established at high densities in a number of major reservoirs. Through implementing a Progressive-Change BACIPS (Before-After-Control-Impact Paired Series) analysis, we found that the following trends were observed following quagga mussel establishment: reduced diatom and cyanobacteria abundances; increased soluble reactive phosphorus and reactive silica concentrations; and reduced abundances ofAphanizomenonsp., a potentially toxic cyanobacterium. We also found reservoirs with established quagga mussel populations experienced slightly increased overall chlorophyll a concentration but no changes in turbidity orMicrocystissp. abundance, which are often considered common indicators of dreissenid invasion. Our results show that Progressive-Change BACIPS analysis is a powerful tool which can be used to interrogate industry standard long-term datasets of water quality metrics in order to identify and quantify the impacts of invasive species when the approximate timeframe of species arrival is known. We also demonstrate that quagga mussels may have had significant effects on reservoir ecosystems which, primarily through their impacts on phytoplankton communities, may have implications for reservoir management.