文章基本信息

标题：Concentration–response function of nitrite on survival, molting, and reproduction of Daphnia similoides
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作者：Fuhui Xiang ; Wei Yang ; Zhou Yang 等
期刊名称：Journal of Freshwater Ecology
印刷版ISSN：0270-5060
电子版ISSN：2156-6941
出版年度：2011
卷号：26
期号：1
页码：33-41
DOI：10.1080/02705060.2011.553823
出版社：Taylor & Francis
摘要：Abstract We assessed the chronic toxicity of nitrite to Daphnia similoides and modeled the concentration–response function of nitrite on survival, molting, and reproduction. Survival time, number of molting, number of total offspring per female, number of broods per female, and number of offspring per brood decreased significantly with increasing NO 2 –N concentration during the 21-day experiment. The EC 50 s for number of total offspring per female, number of broods per female, and number of offspring per brood were 1.56, 3.99, and 1.71 mg L −1 , respectively. A four-parameter logistic model was suitable for describing the concentration–response function and allows the estimation of reproduction indices of D. similoides at any given concentration of NO 2 –N.
关键词：Cladoceran; life history; modelling; nitrite; toxicity