Effects of nutrient temporal variations on toxic genotype and microcystin concentration in two eutrophic lakes
文献类型：期刊论文
| 作者 | Shi, Wenqing; Zhang, Jianyun; Yi, Qitao; Hu, Liuming; Wang, Min; Chen, Qiuwen |
| 刊名 | ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
 |
| 出版日期 | 2018-12-30 |
| 卷号 | 166页码:192-199 |
| ISSN号 | 0147-6513 |
| 关键词 | Toxic Microcystis Microcystin Environmental factors Nitrogen Phosphorus |
| 文献子类 | Article |
| 英文摘要 | Harmful cyanobacterial blooms are a growing threat to freshwater ecosystems worldwide due to the production of microcystin (MC), which can have detrimental effects on water quality and human health. The relations between MC-producing Microcystis, MC production, and environmental variables especially nutrient conditions in eutrophic lakes, Lake Taihu and Lake Yanghe, were investigated during the bloom season of 2015. Results showed that toxigenic cells contributed to 8.94-75.68% and 7.87-58.69% of the total Microcystis in Lake Taihu and Lake Yanghe, respectively. The dynamics of toxigenic cells and MC production were positively associated with NH3-N concentration in Lake Taihu, while positively associated with the concentrations of TP, TDP and PO4-P in Lake Yanghe, indicating that the dominant nutrient factor affecting the toxic blooms was nitrogen in Lake Taihu, whereas it was phosphorus in Lake Yanghe. The significant relationship between TLR eq (total MC after transformation of MC-RR and MC-YR into MC-LR) and Chlorophyll-a (Chl-a) concentration implied that Chl-a could be an alternative measure to predict MC risk in the two lakes, and the safe threshold value of Chl-a was proposed as 25.38 and 31.06 mu g/L in Lake Taihu and Lake Yanghe, respectively. |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/41133]  |
| 专题 | 生态环境研究中心_环境水质学国家重点实验室 |
| 推荐引用方式 GB/T 7714 | Shi, Wenqing,Zhang, Jianyun,Yi, Qitao,et al. Effects of nutrient temporal variations on toxic genotype and microcystin concentration in two eutrophic lakes[J]. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY,2018,166:192-199. |
| APA | Shi, Wenqing,Zhang, Jianyun,Yi, Qitao,Hu, Liuming,Wang, Min,&Chen, Qiuwen.(2018).Effects of nutrient temporal variations on toxic genotype and microcystin concentration in two eutrophic lakes.ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY,166,192-199. |
| MLA | Shi, Wenqing,et al."Effects of nutrient temporal variations on toxic genotype and microcystin concentration in two eutrophic lakes".ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 166(2018):192-199. |
入库方式： OAI收割
来源：生态环境研究中心
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