A Multi-Life Stage Comparison of Silver Nanoparticle Toxicity on the Early Development of Three Canadian Fish Species

Schultz Dayna R.; Tang Song; Miller Christie; Gagnon Danielle; Shekh Kamran; Alcaraz Alper J. G.; Janz David M.; Hecker Markus

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A Multi-Life Stage Comparison of Silver Nanoparticle Toxicity on the Early Development of Three Canadian Fish Species

机译：银纳米粒子毒性对三种加拿大鱼类早期发展的多寿命比较

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Information on the effects of silver nanoparticles (AgNPs) in fish has mostly been generated from standard laboratory species and short-term toxicity tests. However, there is significant uncertainty regarding AgNP toxicity to native species of concern in North America, particularly in northern freshwater ecosystems. We assessed the chronic toxicity of AgNPs in early life stages of three North American fish species: rainbow trout (Oncorhynchus mykiss), lake trout (Salvelinus namaycush), and northern pike (Esox lucius). Newly fertilized embryos were exposed to nominal aqueous concentrations of 0.1, 0.3, 1.0, 3.0, 10.0, or 30.0 nM AgNPs for 126 (rainbow trout), 210 (lake trout), and 25 (northern pike) days. Endpoints included cumulative developmental time (degrees C x day or degree-days to 50% life-stage transition), mortality, fork length, embryonic malformations, cumulative survival, and histopathology of gill and liver in larvae/alevins. The results showed life stage-specific differences in responses, with endpoints during the embryonic stage occurring more often and at lower concentrations compared to larval/alevin and juvenile stages. Sensitivities among species were highly dependent on the endpoints measured, although developmental time appeared to be the most consistent endpoint across species. At embryonic and larval/alevin stages, northern pike was the most sensitive species (lowest observable effect concentration of 0.1 nM using developmental time). Rainbow trout displayed similar responses to lake trout across multiple endpoints and therefore seems to be an adequate surrogate for trout species in ecotoxicology studies. Moreover, while mortality during individual life stages was not generally affected, the cumulative mortality across life stages was significantly affected, which highlights the importance of chronic, multi-life-stage studies. Environ Toxicol Chem 2021;00:1-14. (c) 2021 SETAC

机译：有关鱼类纳米颗粒（AgNP）在鱼类中的影响的信息主要是从标准实验室物种和短期毒性测试产生的。然而，对北美的原生令人痛苦的毒性有重大不确定性，特别是在北部淡水生态系统中。我们评估了三种北美鱼类早期生命阶段的慢性毒性：彩虹鳟鱼（Oncorhynchus mykiss），鳟鱼（Salvelinus Namaycush）和北部派克（Esox Lucius）。将新施肥的胚胎暴露于126（虹鳟鱼），210（湖泊）和25（北派克）天数的0.1,0.3,1.0,3.0,10.0或30.0nm agnps的标称含水浓度。终点包括累积发育时间（幼虫和羊膜阶段过渡的累积发育时间（高度C X天或度数至50％），幼虫/艾尔维林斯的鳃和肝脏的累积畸形，累积生存和组织病理学。结果表明，与幼虫/啤酒素和少年阶段相比，胚胎阶段在胚胎阶段发生的胚胎阶段期间的终点，终点。物种之间的敏感性高度依赖于测量的终点，尽管发育时间似乎是跨种类最一致的终点。在胚胎和幼虫/阿勒文阶段，北部派克是最敏感的物种（使用发育时间最低的可观察效果浓度为0.1nm）。彩虹鳟鱼在多个端点展示了对湖泊鳟鱼的类似响应，因此似乎是生态毒理学研究中的鳟鱼类的适当代理。此外，虽然各个生命阶段的死亡率普遍受到影响，但跨生命阶段的累积死亡率受到显着影响，这突出了慢性多生命阶段研究的重要性。环境毒素化学2021; 00：1-14。（c）2021 Setac

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来源
《Environmental toxicology and chemistry》 |2021年第12期|3337-3350|共14页
作者
Schultz Dayna R.; Tang Song; Miller Christie; Gagnon Danielle; Shekh Kamran; Alcaraz Alper J. G.; Janz David M.; Hecker Markus;
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作者单位

Univ Saskatchewan Toxicol Grad Program Saskatoon SK Canada|Univ Saskatchewan Toxicol Ctr Saskatoon SK Canada;

Univ Saskatchewan Sch Environm & Sustainabil Saskatoon SK Canada;

Univ Saskatchewan Toxicol Ctr Saskatoon SK Canada|Univ Saskatchewan Dept Vet Biomed Sci Saskatoon SK Canada;

Univ Saskatchewan Toxicol Ctr Saskatoon SK Canada;

Univ Saskatchewan Toxicol Ctr Saskatoon SK Canada;

Univ Saskatchewan Toxicol Grad Program Saskatoon SK Canada|Univ Saskatchewan Toxicol Ctr Saskatoon SK Canada;

Univ Saskatchewan Toxicol Ctr Saskatoon SK Canada|Univ Saskatchewan Dept Vet Biomed Sci Saskatoon SK Canada;

Univ Saskatchewan Toxicol Ctr Saskatoon SK Canada|Univ Saskatchewan Sch Environm & Sustainabil Saskatoon SK Canada;

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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
Emerging contaminants; Developmental toxicity; Oncorhynchus mykiss; Salvelinus namaycush; Esox lucius;

机译：新兴污染物;发育毒性;oncorhynchus mykiss;salvelinus namaycush;esox lucius;

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A Multi-Life Stage Comparison of Silver Nanoparticle Toxicity on the Early Development of Three Canadian Fish Species

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