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• W321498032 abstract "采用单克隆培养和群体培养的方法,研究了具有环境雌激素效应药物氰戊菊酯(Fenvalerate)和雌性雄性化激素效应药物三丁基氯化锡(TBTC)对萼花臂尾轮虫(Brachionus calyciflorus)生命周期中各发育阶段的历时以及种群增长的影响.结果表明,氰戊菊酯和TBTC对萼花臂尾轮虫的生长发育和种群增长有明显的效应.氰戊菊酯使生殖期延长(200和1000μg/L),生殖后期缩短,平均寿命也缩短(除1000μg/L),总产卵量和种群增长率升高;而经TBTC处理生殖前期延长(1和5μg/L),生殖期和生殖后期缩短,平均寿命也缩短,总产卵量和种群增长率较对照组也有下降.批次携卵量也受到两种药物的影响.且萼花臂尾轮虫的总产卵量随着氰戊菊酯和TBTC的浓度呈曲线相关,氰戊菊酯:Y=-0.6745X²+6.6884X+5.855(R²=0.7027);TBTC:Y=0.2054X²-2.3178X+16.666(R²=0.6535).研究表明环境雌激素氰戊菊酯和雌性雄性化激素TBTC对萼花臂尾轮虫生活史特征影响表现出一定差异.;Recent reports suggested that when certain contaminants may present in aquatic ecosystem at levels, it would disruptendocrine functions of a variety of aquatic invertebrates. For this hypothesis, we sought to determine whether the estrogeniccompound Fenvalerate and androgenic compound TBTC can individually inhibit the development and reproductive output of thefreshwater rotifer Brachionus calyciflorus. The present study focused on the life history characteristics of B. calyciflorus undereffects of different concentrations of Fenvalerate and TBTC. The result showed that Fenvalerate and TBTC had significant effectson the durations of different development stages of B. calyciflorus and the characterristics of its population growth. Treatmentwith Fenvalerate at the concentrations of 200 and 1000μg/L significantly lengthened the duration of reproductive period.However, the duration of pre-reproductive, post-reproductive periods and the lifespan were shortened. In treatment with 1 and5μg/L TBTC, the number of eggs and population growth rate were also increased compared to the control, however, thepre-productive period was significantly lengthened, and the reproductive, post-reproductive periods and the lifespan weresignificantly shortened compared to the control. The total number of eggs and population growth rate were both decreasedsignificantly when the rotifer was exposed to 0.001 and 1-5μg/L of the above contaminants, and the number of eggs wascurve-related with the concentrations of Fenvalerate and TBTC (Fenvalerate: Y=-0.6745X²+6.6884X+5.855(R²=0.7027); TBTC:Y=0.2054X²-2.3178X+16.666(R²=0.6535)). Consequently, Fenvalerate and TBTC showed differently effects on the durations ofdifferent development stages of B. calyciflorus and the characterristics of its population growth." @default.
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• W321498032 date "2009-01-01" @default.
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• W321498032 title "Effects of Fenvalerate and TBTC (EDCs) on life history characteristics of freshwater rotifer <i>Brachionus calyciflorus</i>" @default.
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• W321498032 doi "https://doi.org/10.18307/2009.0512" @default.
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