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张晓婵,温茹淑,方展强.2015.广州河涌污水暴露致食蚊鱼骨骼形态雄性化的影响.动物学杂志,50(6):895-912.
广州河涌污水暴露致食蚊鱼骨骼形态雄性化的影响
Bone Morphogenetic Masculinization in Mosquitofish (Gambusia affinis) Exposed to Municipal Waste Water in Guangzhou Creek
投稿时间:2015-01-02  修订日期:2015-11-11
DOI:DOI: 10.13859/j.cjz.201506009
中文关键词:  城市废水  内分泌干扰物  形态雄性化  食蚊鱼  广州河涌
英文关键词:Municipal wastewater  endocrine disruptors  morphological masculinization  mosquitofish  Guangzhou creek
基金项目:广东省科技计划项目(No. 2012B030800006);广东高校城市水环境生态治理与修复工程技术研究中心建设项目( No. 2012gezxA004)
作者单位E-mail
张晓婵 华南师范大学生命科学学院 390267054@qq.com 
温茹淑 嘉应学院生命科学学院  
方展强 华南师范大学生命科学学院 fangzhq@scnu.edu.cn 
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中文摘要:
      利用食蚊鱼(Gambusia affinis)椎肋骨和臀鳍形态学变化特征,调查了生活在广州海珠涌和黄埔涌中的食蚊鱼受内分泌干扰现状。测量了食蚊鱼的第4、5、6臀鳍条长度及第3鳍条分节数,并采用食蚊鱼第14、15和16椎肋骨的L、P、D、L/D、P/D和P/L值来评价食蚊鱼骨骼形态变化。结果显示,与对照点相比,各采样点雌鱼的臀鳍第3鳍条的分节数明显增多(P<0.05),第4:6鳍条比率明显增大(P<0.05)。城市废水中各采样点雌性食蚊鱼的第14、15和16椎肋骨P、P/D和P/L值均显著升高,雌性食蚊鱼出现了雄性食蚊鱼的第二性征。雄鱼则无明显变化。结果表明,广州河涌水体中的环境内分泌干扰物对食蚊鱼产生明显的形态雄性化效应。
英文摘要:
      Using the hemal spine and anal fin as morphology indicator, mosquitofish living in Haizhu Creek and Huangpu Creek were sampled and detected in order to assess the endocrine disrupting effects. We measured the 4,5,6 anal strip length and the third section rays scores, and used the 14th, 15th, 16th hemal spine and L, P, D, L/D ratios, P/D ratios, P/L ratios as indicator to assess the modification of skeletal morphology. The results showed that higher number of the 3rd anal fin ray and the increased ray 4:6 length ratio were observed in mosquitofish sampled in the Haizhu River and Huangpu River. The adult female mosquitofish exposed to municipal effluent had significantly greater in 14P, 15P and 16P than those at reference site. The ratios of 14P:14D, 15P:15D and 16P:16D of adult females were found to be significantly increased in Haizhu River and Huangpu River. Female mosquitofish in Haizhu River and Huangpu River exhibited signs of male-like hemal spine development. However there were no differences between male mosquitofish from test and the reference site. The results indicated that the environmental endocrine disruptors in water of Guangzhou Creek could produce the effect of morphological masculinization in female mosquitofish.
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