Algal bioassays: their significance in monitoring water quality with respect to nutrients and toxicants
Algal bioassays: their significance in monitoring water quality with respect to nutrients and toxicants
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藻类生物测定：其在监测水质营养物和毒物方面的重要性
DOI：
10.1007/bf02551938
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发表时间：
1985
期刊：
影响因子：
--
通讯作者：
C. Blaise
中科院分区：
文献类型：
--
作者：
P. Couture;S. Visser;R. Coillie;C. Blaise
审查的重点是利用初级生产者作为评价人类活动损害（富营养化、毒性）对水生环境影响的生物学工具。研究讨论以下还原论的方法，通过使用藻类生物测定（硒魔羯座）。流域内藻类生长潜力（AGP）的变化反映了农业和城市化等人类活动对水质的影响。AGP随时间变化的研究使得研究非生物因素（温度、流速）和生物因素（原生初级生产）对浮游植物潜在可利用营养物质浓度的影响成为可能。AGP的季节变化进一步显示了非点源（径流）或点源（污水）对水生系统的影响。原生浮游植物的AGP值与叶绿素A含量呈交错关系。因此，通过这种方法在实验室中获得的值似乎可以转移到自然系统中。还使用Capricornutum来确定物质（纯形式或配方中使用的）和排放到环境中的废水的毒性特征。结果表明，生物测定的使用者在评价需要预处理的试验结果（如储存、高压灭菌和过滤）时应谨慎。还建议谨慎解释，以便区分限制生长的基本元素的影响和有毒物质的存在。总的来说，从这篇综述看来，AGP为水生环境的健全管理提供了有益的信息。
The review focuses on the use of primary producers as a biological tool for evaluating the impact of damage by human activity (eutrophication, toxicity) on the aquatic environment. Studies are discussed following a reductionist approach by using algal bioassays (Selenastrum capricornutum). Variations of algal growth potential (AGP) within watersheds show the impact of human activities such as agriculture and urbanization, on water quality. The study of variation of the AGP in time allowed the investigation of the effect of abiotic (temperature, flow rate) and biotic factors (indigenous primary production) on the concentration of nutrients potentially available to phytoplankton. Seasonal changes of the AGP have further shown the impact of non-point (runoff) or point sources (sewage effluents) on the aquatic system. A staggered relationship was observed between AGP values and chlorophyll a content of indigenous phytoplankton. Values obtained in the laboratory by means of this type of approach would therefore appear to be transferably to natural systems.S. capricornutum was also used to identify toxic characteristics of substances (in pure form or used in formulations) and effluents released into the environment. It was shown that the user of bioassays should use care when evaluating results from tests requiring pretreatment such as storage, autoclaving and filtration. Cautious interpretation is also recommended in order to distinguish between effects of growth-limiting essential elements and the presence of toxic substances.In general it appears from this review that the AGP provides helpful information for a sound management of the aquatic environment.