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首页> 外文期刊>Environmental toxicology and chemistry >HEALTH STATUS OF NATIVE FISH (PERCILIA GILLISSI AND TRICHOMYCTERUS AREOLATUS) DOWNSTREAM OF THE DISCHARGE OF EFFLUENT FROM A TERTIARY-TREATED ELEMENTAL CHLORINE-FREE PULP MILL IN CHILE
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HEALTH STATUS OF NATIVE FISH (PERCILIA GILLISSI AND TRICHOMYCTERUS AREOLATUS) DOWNSTREAM OF THE DISCHARGE OF EFFLUENT FROM A TERTIARY-TREATED ELEMENTAL CHLORINE-FREE PULP MILL IN CHILE

机译：智利未经三价处理的氯元素制浆厂污水排放下的天然鱼类（Pericilia Gillissi和Trichomycterus areolatus）的健康状况

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摘要

Few data exist on the possible effects of pulp and paper effluent discharge on native fish populations in the Southern Hemisphere, relative to the research done in the Northern Hemisphere. The present research examined two native fish species (Trichomycterus areolatus and Percilia gillissi) for effects at both the molecular and individual level due to the discharge of effluent from a tertiary treated elemental chlorine-free pulp mill into a fluvial system in Central Chile over three seasons (February 2007, October 2007, January 2008). Different responses were observed between species and between sexes. There was an increase in the production of gonadal 17β-estradiol in the females of both species but a drop in 11-ketotestosterone production in P. gillissi males. Female gonadal size was increased, especially during the summer period, with corresponding increases the frequency of advanced oocyte development, and in the oocyte diameter in both species. Hepatic ethoxyresorufin-O-deethylase (EROD) activity was elevated for both species downstream of the discharge point, although overall it was higher in P. gillissi than T. areolatus. Decreases in the frequency of smaller-sized fish for both species, as well as a drop in the size of the adults downstream of the discharge point, were observed. The present study is the first evidence of endocrine disruption in native freshwater fish associated with modern pulp mills in South America. This study establishes possible links in the reproductive alterations observed at the subindividual and individual levels that could explain the changes observed at the population level.
机译：相对于北半球所做的研究，很少有关于纸浆和造纸废水排放对南半球本地鱼类种群可能产生的影响的数据。本研究研究了三种本地鱼类（Trichomycterus areolatus和Percilia gillissi）在分子水平和个体水平上的影响，这是由于在三个季节中将三级处理的无氯无元素纸浆厂的废水排放到智利中部的河流系统中所致（2007年2月，2007年10月，2008年1月）。在物种之间和性别之间观察到不同的响应。两种物种的雌性中性腺17β-雌二醇的产量均增加，而吉氏疟原虫中11-酮睾酮的产量却下降。雌性生殖腺的大小增加了，特别是在夏季，相应地，这两个物种的卵母细胞发育提前的频率和卵母细胞直径也相应增加。排放点下游的两个物种的肝乙氧基异戊二烯-O-脱乙基酶（EROD）活性均升高，尽管总体而言，吉氏疟原虫的活性高于乳晕丁香。观察到两种鱼的小型鱼的发生频率降低，以及出水点下游成年鱼的大小下降。本研究是南美现代制浆厂相关的天然淡水鱼内分泌破坏的第一个证据。这项研究建立了在亚个体和个体水平上观察到的生殖变化的可能联系，这可以解释在人口水平上观察到的变化。

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  • 来源
    《Environmental toxicology and chemistry》 |2011年第8期|p.1793-1809|共17页
  • 作者

    Gustavo Chiang; Mark E. McMaster; Roberto Urrutia; M. Fernanda Saavedra; J. Francisco Gavilan; Felipe Tucca; Ricardo Barra; Kelly R. Munkittrick;

  • 作者单位

    EULA-Chile Environmental Sciences Centre, University of Concepcion, Concepcion, Chile;

    Environment Canada, National Water Research Institute, Burlington, Ontario, Canada;

    EULA-Chile Environmental Sciences Centre, University of Concepcion, Concepcion, Chile;

    EULA-Chile Environmental Sciences Centre, University of Concepcion, Concepcion, Chile;

    Department of Cellular Biology, University of Concepcion, Chile;

    EULA-Chile Environmental Sciences Centre, University of Concepcion, Concepcion, Chile;

    EULA-Chile Environmental Sciences Centre, University of Concepcion, Concepcion, Chile;

    Canadian Rivers Institute and Department of Biology, University of New Brunswick, Saint John, New Brunswick, Canada;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
  • 原文格式 PDF
  • 正文语种 eng
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  • 关键词

    native fish; pulp mill effluent; tertiary treatment; chile; altered reproduction;

    机译：本地鱼;制浆厂废水;三级治疗智利;繁殖改变;

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