Estrogenic effects in crucian carp (Carassius carassius) exposed to treated sewage effluent

被引:43
作者
Diniz, MS
Peres, I
Magalhaes-Antoine, I
Falla, J
Pihan, JC
机构
[1] Univ Nova Lisboa, Fac Ciencias & Tecnol, Dept Ciencias & Engn Ambiente, P-2825 Monte De Caparica, Portugal
[2] IUT Thionville Yutz, LIM, ESE, CNRS,Unite FRE 2635, F-57970 Yutz, France
[3] Univ Metz, Lab Biodivers & Foncionnement Ecosyst, F-57070 Metz, France
关键词
vitellogenin; sewage effluent; Carassius carassius; estrogenicity; EDC;
D O I
10.1016/j.ecoenv.2004.11.004
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
To assess the estrogenicity of a municipal sewage treatment plant, sexually mature crucian carp of both sexes were exposed for 28 days to domestic treated sewage effluent running with a constant flow of water, with tap water and with different concentrations of the sewage effluent (25%, 50% and 100%). Vitellogenin (VTG), gonadosomatic index (GSI), hepatosomatic index (HSI), and histological abnormalities were used to assess the estrogenic potency of the effluent. Results show a significant (P<0.05) increase in VTG levels in all exposed male fish. A significant (P<0.05) reduction in the GSI was only observed in fish exposed to 100% effluent. Morphological changes were detected by histological evaluation, revealing severe effects on the testes. Spermatogenesis was progressively reduced to total inhibition in fish exposed to 100% effluent. One of the most pronounced effects detected was the presence of oocytes in male gonads, observed in 20% of males exposed to 100% sewage effluent. (c) 2004 Elsevier Inc. All rights reserved.
引用
收藏
页码:427 / 435
页数:9
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