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首页> 外文期刊>Marine Environmental Research >Sewage pollution impact on Mediterranean rocky-reef fish assemblages
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Sewage pollution impact on Mediterranean rocky-reef fish assemblages

机译:污水污染对地中海礁石鱼群的影响

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摘要

The effects of sewage outfalls on subtidal fish assemblages were studied along the NW coasts of Malta (Sicily channel, Mediterranean Sea) by means of underwater visual census. The presence of two spatially distinct outfalls discharging untreated wastewaters allowed to use a balanced symmetrical after control/ impact (AC1) design that consisted of two putatively impacted locations and two controls, with four sites nested in each location. Surveys were performed in 2006 at two random dates. The study highlighted significant changes at both assemblage and individual species levels. Fish assemblages structures were different between controls and sewages, where total abundance of fish were higher. The responses of individual species to sewage pollution were mostly related to an anomalous increase of two small opportunistic species i.e. Gobius bucchkhii and Parablennius rouxi and to a decrease of species of the genus Symphodus, particularly S. roissali and S. ocellatus. Moreover in correspondence of the outfalls, significant changes of the fish size distribution were detected for several species. These results support the use of fish assemblages as biological indicators for marine coastal waters and demonstrated the possibility to obtain sharp signals of environmental impact from some individual fish species.
机译:通过水下视觉普查研究了马耳他西北海岸(地中海西西里河道)污水排污口对潮下鱼类群落的影响。排放未经处理的废水的两个空间上不同的排污口的存在允许使用平衡对称的控制/影响后控制(AC1)设计,该设计由两个推定受影响的位置和两个控制组成,每个位置嵌套四个位置。在2006年的两个随机日期进行了调查。该研究强调了在集合和单个物种水平上的重大变化。对照和污水之间的鱼群结构不同,鱼的总丰度更高。单个物种对污水污染的响应主要与两个小的机会性物种即戈比乌斯布希奇(Gobius bucchkhii)和帕拉比尼乌斯鲁比(Parablennius rouxi)的异常增加以及Symphodus属(Symphodus)物种的减少有关,特别是S. roissali和ocellatus。此外,与排污口相对应,发现了几种鱼类的鱼类大小分布发生了显着变化。这些结果支持将鱼群用作海洋沿海水域的生物学指标,并证明有可能从某些鱼类物种中获得对环境影响的清晰信号。

著录项

  • 来源
    《Marine Environmental Research》 |2010年第5期|p.390-397|共8页
  • 作者单位

    ISPRA, High Institute for Environmental Protection and Research, Lab. of Milazzo, Via dei Mille, 44, 98057 Milazzo (ME), Italy;

    ISPRA. Via di Casalotti 300, 00166 Roma, Italy;

    ICM-CSIC, Institut de Ciencies del Mar, Psg. Maritim de la Barceloneta, 37-49, 08003 Barcelona, Spain;

    Laboratory of Zoology and Marine Biology, DiSTeBA CoNISMa, University of Salento, 73100 Lecce, Italy;

    ISPRA. Via di Casalotti 300, 00166 Roma, Italy;

    ISPRA. Via di Casalotti 300, 00166 Roma, Italy;

    Department of Biology, University of Malta, Msida MSD2080, Malta;

  • 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
  • 中图分类
  • 关键词

    sewage impact; fish assemblages; opportunistic species; sensitive species; visual census;

    机译:污水影响;鱼群;机会性物种;敏感物种;视觉普查;

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