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首页> 外文期刊>Environmental Management >Using a Multi-Component Indicator Toward Reducing Phytoplankton Bloom Occurrences in the Swan River Estuary
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Using a Multi-Component Indicator Toward Reducing Phytoplankton Bloom Occurrences in the Swan River Estuary

机译：使用多指标指标来减少天鹅河口浮游植物的爆发

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摘要

The Swan River estuary is an icon of the city of Perth, Western Australia, running through the city centre and dividing the northern from the southern part of the city. However, frequent phytoplankton blooms have been observed in the estuary as a result of eutrophication. The Index of Sustainable Functionality (ISF), a composite index able to indicate for sustainable health of the estuary, was applied, taking into account the hydrology and highly seasonal nature of the estuary to inform the management of the estuary, towards the aim of reducing bloom occurrences. The study period was from the beginning of intensive monitoring in 1995 to mid-2009. The results emphasize the importance of physical controls on the ecology of the estuary. No significant trend in the estuary's low functionality was found, indicating that despite extensive restoration efforts, the frequency of algal bloom occurrences has remained relatively stationary and other mitigating factors have maintained an annual average ISF value at around 70 % functionality. We identified that the low flow season consistently performs the worst, with (high) temperature found as the most dominant variable for phytoplankton growth and bloom. Thus in managing the estuary, vigilance is required during periods of high temperature and low flow. Focusing on the risk of phytoplankton bloom, a nutrient reduction program that is in place is a long term solution due to high concentrations in the estuary. Other management measures need to be considered and adopted to effectively reduce the occurrences of future phytoplankton blooms.
机译：天鹅河河口是西澳大利亚州珀斯市的标志性建筑，贯穿市中心，将北部与城市南部隔开。然而，由于富营养化，在河口发现了频繁的浮游植物开花。应用可持续功能指数（ISF），该综合指数能够表明河口的可持续健康状况，同时考虑到河口的水文状况和高度季节性，以告知河口管理，以期减少盛开的发生。研究阶段是从1995年开始进行密集监控到2009年中期。结果强调了物理控制对河口生态的重要性。在河口的低功能性方面没有发现明显的趋势，这表明尽管进行了大量的修复工作，但藻华发生的频率仍保持相对平稳，而其他缓解因素将其年平均ISF值保持在70％左右。我们发现低流量季节始终表现最差，而（高温）温度是浮游植物生长和开花的最主要​​变量。因此，在管理河口时，在高温和低流量期间需要保持警惕。着眼于浮游植物开花的风险，由于河口中的高浓度，适当的营养减少计划是一项长期解决方案。需要考虑并采取其他管理措施，以有效减少未来浮游植物开花的发生。

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  • 来源
    《Environmental Management》 |2012年第2期|p.237-256|共20页
  • 作者

    Ria Kristiana; Jason P. Antenucci; Jorg Imberger;

  • 作者单位

    Centre for Water Research, University of Western Australia,M023, 35 Stirling Highway, Crawley, WA 6009, Australia;

    Centre for Water Research, University of Western Australia,M023, 35 Stirling Highway, Crawley, WA 6009, Australia;

    Centre for Water Research, University of Western Australia,M023, 35 Stirling Highway, Crawley, WA 6009, Australia;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《化学文摘》(CA);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    indicators; phytoplankton blooms; swan river estuary; sustainability; water management; climate;

    机译：指标;浮游植物开花;天鹅河河口可持续性;水管理;气候;

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