期刊论文

ECOLOGICAL RISK ASSESSMENT OF MICROCYSTIS BLOOMS IN ERHAI LAKE

中文

水生生物学报

1000-3207

2018

42

5

1066-1074

10.7541/2018.131

国家水体污染控制与治理科技重大专项(2013ZX07105-005) 国家基金面上项目(31670464) 华中师范大学中央高校基本科研业务费项目(CCNU18TS023)资助。

本校为第一机构

以洱海微囊藻水华为研究对象,借鉴生态毒理学风险评估思路对藻类水华的水生态风险进行评价。研究通过暴露实验以及查阅文献获取了微囊藻水华对底栖动物、浮游动物、鱼类和沉水植物的效应数据,采用毒性百分数排序法推导了洱海微囊藻水华的急性和慢性效应藻密度,用风险商值评估微囊藻水华密度的水生态风险。进一步结合水华盖度和持续时间制定了微囊藻水华的急性、慢性生态风险评价表。研究结果表明,微囊藻水华的急性生态风险分为低中高三级,分别为微囊藻藻密度小于3.4×10^6 cells/L为低风险,微囊藻藻密度在3.4×10^6—3.4×10^7 cells/L之间为中风险,微囊藻密度大于3.4×10^7 cells/L为高风险。慢...

The ecological risk of a Microcystis bloom was evaluated on the basis of the ecotoxicological risk assessment method. The effects of Microcystis bloom on benthic fauna, zooplankton, fish, and submerged macrophytes were assessed by using acute and chronic exposures experiments and the findings reported by previous studies. The algal cell densities were calculated by using toxicity percentile rank (TPR) method, and aquatic ecological risk assessment for Microcystis bloom was performed by using risk quotient approach. The criteria required for acu...