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首页> 外文期刊>Ecotoxicology and Environmental Safety >Influence of salinity and organic matter on the toxicity of Cu to a brackish water and marine clone of the red macroalga Ceramium tenuicorne
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Influence of salinity and organic matter on the toxicity of Cu to a brackish water and marine clone of the red macroalga Ceramium tenuicorne

机译：盐度和有机质对铜对微咸水红海藻天牛角微咸水和海洋克隆毒性的影响

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摘要

Cu is a major active component in anti-fouling paints, which may reach toxic levels in areas with intense boat traffic and therefore is a metal of environmental concern. The bioavailability of metals is influenced by factors such as salinity and organic matter measured as total organic carbon (TOC). The influence of these two factors was studied, with a focus on brackish water conditions, by exposing a marine and a brackish water clone of the red macroalga Ceramium tenuicorne to Cu in different combinations of artificial seawater (salinity 5-15%o) and TOC (0-4 mg/L) in the form of fulvic acid (FA). In addition, the toxicity of Cu to both clones was compared in salinity 10‰ and 15‰. The results show that by increasing TOC from 0 to 2 and 4 mg/L, Cu was in general less toxic to both algal clones at all salinities tested (p < 0.05). The effect of salinity on Cu toxicity was not as apparent, both a positive and negative effect was observed. The brackish water clone showed generally to be more sensitive to Cu in salinity 10‰ and 15‰ than the marine counterpart. In conclusion, FA reduced the Cu toxicity overall. The Cu tolerance of both strains at different salinities may reflect their origin and their adaptations to marine and brackish water.
机译：铜是防污涂料中的主要活性成分，在船流量大的地区可能达到有毒水平，因此是环境关注的金属。金属的生物利用度受盐度和以总有机碳（TOC）计量的有机物等因素影响。研究了这两个因素的影响，重点研究了咸水条件，方法是在人造海水（盐度为5-15％o）和TOC的不同组合下，将红巨藻天牛角的海洋和咸水克隆暴露于Cu。 （0-4 mg / L）黄腐酸（FA）形式。另外，比较了Cu对两个克隆的毒性，盐度分别为10‰和15‰。结果表明，通过将TOC从0增加到2和4 mg / L，在所有测试的盐度下，Cu对两个藻类克隆的毒性通常较小（p <0.05）。盐度对Cu毒性的影响并不明显，同时观察到了正面和负面的影响。咸淡水克隆通常显示出对盐度比海水中的铜更敏感的10‰和15‰。总之，FA总体上降低了Cu毒性。两种菌株在不同盐度下对铜的耐受性可能反映了它们的起源及其对海水和微咸水的适应性。

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  • 来源
    《Ecotoxicology and Environmental Safety》 |2011年第4期|p.636-642|共7页
  • 作者

    Erik Ytreberg; Jenny Karlsson; Kuria Ndungu; Martin Hassellov; Eike Breitbarth; Britta Eklund;

  • 作者单位

    Department of Applied Environmental Science (ITM), Stockholm University, Svante Arrhenius Vaeg 8, SE-106 91 Stockholm, Sweden;

    Department of Applied Environmental Science (ITM), Stockholm University, Svante Arrhenius Vaeg 8, SE-106 91 Stockholm, Sweden;

    Department of Applied Environmental Science (ITM), Stockholm University, Svante Arrhenius Vaeg 8, SE-106 91 Stockholm, Sweden;

    Department of Chemistry, University of Gothenburg, Kemivagen JO, SE-412 96 Gothenburg, Sweden;

    Department of Chemistry, University of Gothenburg, Kemivagen JO, SE-412 96 Gothenburg, Sweden,Department of Chemistry, University ofOtago, PO Box 56, Dunedin 9054, New Zealand;

    Department of Applied Environmental Science (ITM), Stockholm University, Svante Arrhenius Vaeg 8, SE-106 91 Stockholm, Sweden;

  • 收录信息 美国《科学引文索引》(SCI);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

    copper fulvic acid doc macroalgae ceramium tenuicorne ecotoxicology effect concentration;

    机译：铜黄腐酸doc大藻铈藤角藻生态毒理作用浓度;

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