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壬基酚对蒙古裸腹溞(甲壳纲:无甲目)生长繁殖及跨代效应的影响。

Growth and reproduction effects and transgenerational effects of nonylphenol in Moina mongolica Daday (Crustacea: Cladocera).

机构信息

College of Fisheries and Life Science, Key Laboratory of Hydrobiology in Liaoning Province, Dalian Ocean University, Dalian, 116023, Liaoning, China.

出版信息

Environ Sci Pollut Res Int. 2021 Jun;28(23):29221-29230. doi: 10.1007/s11356-021-12592-8. Epub 2021 Feb 8.

Abstract

An experimental ecology method was used to study the acute toxicity of nonylphenol (NP) and the effects of NP on growth, reproduction, and population growth in Moina mongolica. The effects were studied in a parent generation exposed to NP and three generations of offspring (F1, F2, and F3) not exposed to NP. The acute 24- and 48-h median lethal concentrations (LC) of M. mongolica were 0.066 and 0.046 mg L, respectively, indicating that NP is very toxic to M. mongolica. In chronic exposure experiments using parent M. mongolica, NP clearly inhibited the lifespan, reproductive volume, total molting time, end-body length, and population growth parameters. In the recovery generations in a clean environment, three generations still suffered from toxic effects, with toxic amplification in generation F1. Generations F2 and F3 clearly followed a recovery trend in the groups in which the parents were exposed to 0.001-0.007 mg L NP but recovered slowly in the groups in which the parents were exposed to 0.009 and 0.011 mg L NP. The results indicated that NP has overt reproductive toxic and transgenerational effects on M. mongolica. Further studies of the damage caused to the aquatic environment by hormone-like chemicals such as NP should therefore be performed.

摘要

采用实验生态学方法研究了壬基酚(NP)对蒙古裸腹溞的急性毒性及NP 对蒙古裸腹溞生长、繁殖和种群增长的影响。研究了亲代暴露于 NP 以及三代未暴露于 NP 的后代(F1、F2 和 F3)的影响。蒙古裸腹溞的急性 24 小时和 48 小时半数致死浓度(LC)分别为 0.066 和 0.046mg/L,表明 NP 对蒙古裸腹溞毒性非常大。在使用亲代蒙古裸腹溞进行的慢性暴露实验中,NP 明显抑制了寿命、繁殖量、总蜕皮时间、尾长和种群增长参数。在清洁环境中的恢复代中,三代仍受到毒性影响,F1 代表现出毒性放大。在亲代暴露于 0.001-0.007mg/L NP 的组中,F2 和 F3 代明显呈现出恢复趋势,但在亲代暴露于 0.009 和 0.011mg/L NP 的组中恢复缓慢。结果表明,NP 对蒙古裸腹溞具有明显的生殖毒性和跨代效应。因此,应进一步研究 NP 等类激素化学品对水生环境造成的损害。

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