Endocrine disrupting effects of domestic wastewater on reproduction, sexual behavior, and gene expression in the brackish medaka Oryzias melastigma 机翻标题: 暂无翻译,请尝试点击翻译按钮。

来源
Chemosphere
年/卷/期
2000 / 150 /
页码
566-575
出版商
Elsevier B.V., P.O. Box 800 Kidlington Oxford OX5 1DX United Kingdom
ISSN号
0045-6535
作者
Chen, Te-Hao 1;Chou, Shi-Ming;Tang, Cheng-Hao;Chen, Chia-Yang;Meng, Pei-Jie;Ko, Fung-Chi;Cheng, Jing-O 1 National Museum of Marine Biology and Aquarium, Pingtung 944, Taiwan;
摘要
The objective of this study was to investigate the endocrine disrupting effects of domestic wastewater on fish using the brackish medaka Oryzias melastigma as the animal model. Estuarine water samples were collected from Sihchong Creek and Baoli Creek estuaries, Taiwan, in March of 2012 to assess the whole effluent toxicity (WET) of domestic wastewater produced by the local residents and tourists. Chemical analysis detected various pharmaceuticals and personal care products (PPCPs) in the field water samples. Some of these PPCPs are endocrine disrupting chemicals. In the laboratory-based bioassay, breeding pairs were exposed to the water samples (Sihchong, Baoli, and control) for 21 days. Cumulative number of eggs spawned was significantly higher in the Sihchong group. While fish swimming activity was not affected, sexual behavior of the male fish was significantly induced in both Sihchong and Baoli groups. Male and female gonad histology was not affected. Expression level of biomarker genes CYP1A1, HSP70, and VTG was significantly induced in the Sihchong group. This study indicates that the mixture of contaminants contained in the estuarine water may cause endocrine disrupting effects in fish.
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关键词/主题词
Fish eggs;Endocrinology;Estuaries;Sexual reproduction;Brackishwater environment;Toxicity;Biomarkers;Creek;Freshwater fish;Swimming;Endocrine disruptors;Animal models;Effluents;Sexual behavior;biomarkers;Eggs;Gene expression;Breeding;Hsp70 protein;Pharmaceuticals;Reproduction;Gonads;Cytochrome P450;Waste water;Contaminants;Bioindicators;Tourists;Water sampling;Consumer products;Bioassays;Fish;Wastewater;Domestic Wastewater;Behavior;Water Analysis;Water Pollution Effects;Water Sampling;Streams;Model Studies;Oryzias melastigma;Oryzias latipes;Brackish;Freshwater;
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