Brown bullhead at the St. Lawrence River (Cornwall) Area of Concern: health and endocrine status in the context of tissue concentrations of PCBs and mercury

Pinheiro M. D. O.; Simmons D. B. D.; Villella M.; Tetreault G. R.; Muir D. C. G.; Mcmaster M. E.; Hewitt L. M.; Parrott J. L.; Park B. J.; Brown S. B.; Sherry J. P.

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Brown bullhead at the St. Lawrence River (Cornwall) Area of Concern: health and endocrine status in the context of tissue concentrations of PCBs and mercury

机译：在圣劳伦斯河（康沃尔郡）的布朗·斗争领域关切的区域：在组织浓度的PCB和水星的背景下健康和内分泌状态

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The St. Lawrence River, at Cornwall Ontario, has accumulated sediment contaminants, mainly mercury (Hg) and polychlorinated biphenyls (PCBs), from industrial point sources over many years. Although those sources are past, the river at Cornwall remains an Area of Concern (AOC). Because of remediation and other changes in the AOC, improved knowledge of contaminants in wild-fish and their putative links to health effects could help decision makers to better assess the AOC's state. Thus, we compared tissue concentrations of Hg, PCBs, morphometric measures of health, and biomarkers of exposure, metabolic-, and reproductive health in native brown bullhead (Ameiurus nebulosus) from the AOC to those of upstream reference fish. Linear discriminant analysis separated the adult fish of both sexes among upstream and downstream sites without misclassification. Burdens of total-Hg (all sites) and PCB toxic equivalents (downstream sites) exceeded the guidance for the protection of wildlife consumers. There were subtle effects of site on physiological variables, particularly in female fish. Total-Hg in tissue correlated negatively to plasma testosterone and 17 beta-estradiol in female fish at Cornwall: moreover, concentrations of both hormones were lower within the AOC compared to reference site fish. A similar effect on vitellogenin, which was uncorrelated to E2/T at the downstream sites, indicated the potential for reproductive effects. Downstream fish also had altered thyroidal status (T-3, TSH, and ratio of thyroid epithelial cell area to colloid area). Despite spatial and temporal variability of the endocrine-related responses, these subtle effects on fish health within the AOC warrant further study.

机译：康沃尔安大略省圣劳伦斯河累积了沉积物污染物，主要来自工业点来源的泥石污染物，主要是汞（Hg）和多氯联苯（PCB）多年来。虽然这些来源已经过去，但康沃尔的河流仍然是一个关注的领域（AOC）。由于AOC的修复和其他变化，改善了野生鱼类中污染物的知识及其对健康效果的推定联系可以帮助决策者更好地评估AOC的国家。因此，我们将HG，PCB，形态测量的健康状况和生物标志物的组织浓度与来自AOC到上游参考鱼类的天然棕熊（Ameiurus nebulosus）中的暴露，代谢和生殖健康的生物标志物。线性判别分析分析了在上游和下游地点之间的成人鱼类而不会错误分类。总HG（所有网站）和PCB有毒等同物（下游网站）的负担超出了保护野生动物消费者的指导。网站对生理变量有微妙的影响，特别是在女性鱼中。组织中的总Hg对玉米壁的血浆睾酮和17β-雌二醇的血浆睾酮和17β-雌二醇相关：此外，与参考部位鱼相比，AOC中的两个激素的浓度较低。对下游部位的E2 / T不相关的vitellogenin的类似效果，表明了生殖效应的可能性。下游鱼还改变了甲状腺状态（T-3，TSH和甲状腺上皮细胞区域与胶体区域的比例）。尽管内分泌有关的反应的空间和时间可变性，但这些对AOC内的鱼类健康的微妙影响需要进一步研究。

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来源
《Environmental Monitoring and Assessment》 |2020年第6期|404.1-404.23|共23页
作者
Pinheiro M. D. O.; Simmons D. B. D.; Villella M.; Tetreault G. R.; Muir D. C. G.; Mcmaster M. E.; Hewitt L. M.; Parrott J. L.; Park B. J.; Brown S. B.; Sherry J. P.;
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作者单位

Univ Waterloo Dept Biol Waterloo ON N2L 3G1 Canada;

Ontario Tech Univ Fac Sci Oshawa ON L1G 0C5 Canada;

Natl Water Res Inst Branch Aquat Contaminants Res Div Environm & Climate Change Canada Burlington ON L7S 1A1 Canada;

Natl Water Res Inst Branch Aquat Contaminants Res Div Environm & Climate Change Canada Burlington ON L7S 1A1 Canada;

Natl Water Res Inst Branch Aquat Contaminants Res Div Environm & Climate Change Canada Burlington ON L7S 1A1 Canada;

Natl Water Res Inst Branch Aquat Contaminants Res Div Environm & Climate Change Canada Burlington ON L7S 1A1 Canada;

Natl Water Res Inst Branch Aquat Contaminants Res Div Environm & Climate Change Canada Burlington ON L7S 1A1 Canada;

Natl Water Res Inst Branch Aquat Contaminants Res Div Environm & Climate Change Canada Burlington ON L7S 1A1 Canada;

Univ Saskatchewan Toxicol Ctr Saskatoon SK S7N 5B3 Canada;

Natl Water Res Inst Branch Aquat Contaminants Res Div Environm & Climate Change Canada Burlington ON L7S 1A1 Canada;

Natl Water Res Inst Branch Aquat Contaminants Res Div Environm & Climate Change Canada Burlington ON L7S 1A1 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《化学文摘》(CA);
原文格式 PDF
正文语种 eng
中图分类
关键词
Fish health; Contaminants; Sex hormones; Thyroid hormones; Histology; Legacy contaminants;

机译：鱼健康;污染物;性激素;甲状腺激素;组织学;遗产污染物;

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外文文献

1. Mercury Concentrations in Sentinel Fish Exposed to Contaminated Sediments Under a Natural Recovery Strategy Within the St. Lawrence River Area of Concern at Cornwall, Ontario, Canada [J] . Lapointe Dominique, Ridal Jeffrey J. Archives of Environmental Contamination and Toxicology . 2019,第2期

机译：在加拿大Ontario，加拿大安大略省康沃尔郡的圣劳伦斯河河区内的自然恢复策略下暴露于污染沉积物的汞浓度。
2. Sediment mercury dynamics and historical trends of mercury deposition in the St. Lawrence River area of concern near Cornwall, Ontario, Canada [J] . Tania M. Delongchamp, David R.S. Lean, Jeffrey J. Ridal, Science of the total environment . 2009,第13期

机译：加拿大安大略省康沃尔郡附近的圣劳伦斯河地区的沉积物汞动态和汞沉积的历史趋势
3. Spatial and Seasonal Patterns of Mercury Concentrations in Fish from the St. Lawrence River at Cornwall, Ontario: Implications for Monitoring [J] . Adrienne R. Fowlie, Peter V. Hodson, M. Brian C. Hickey Journal of great lakes research . 2008,第1期

机译：安大略省康沃尔郡圣劳伦斯河鱼类中汞浓度的时空分布：监测的意义
4. Dredging PCB-Contaminated Sediment from the St. Lawrence River: Project Overview [C] . R.C. Esterline, J.B. Cange, R.K. Lambert Western Dredging Association Twenty-Second Technical Conference, Thirty-Fourth Texas Aamp;M Dredging Seminar, and Special Permanent International Association of Navigational Congresses Session, Jun 12-15, 2002, Denver, Colorado . 2002

机译：从圣劳伦斯河疏PCB多氯联苯污染的沉积物：项目概述
5. Relationships Between Land Use and Mercury Contamination in Twelve Tributaries of the Lake St. Francis Region of the St. Lawrence River near Cornwall, Ontario. [D] . Harrison, Sarah. 2010

机译：安大略省康沃尔郡附近的圣劳伦斯河圣弗朗西斯湖地区十二个支流的土地利用与汞污染之间的关系。
6. Temporal trends of organochlorine concentrations in umbilical cord blood of newborns from the lower north shore of the St. Lawrence river (Québec Canada). [O] . Frédéric Dallaire, Eric Dewailly, Claire Laliberté, 2002

机译：来自圣劳伦斯河下游北岸（加拿大魁北克）的新生儿脐带血中有机氯浓度的时间趋势。
7. Population Characteristics and Contaminant Burdens of the White Sucker (Catostomus commersoni) from the St. Lawrence River near Cornwall, Ontario and Massena, New York [O] . Lara L. Ridgway, François Chapleau, Michael E. Comba, 1999

机译：来自康沃尔郡，安大略郡和马塞纳附近的圣劳伦斯河（Carostomus amonmerson）的人口特征和污染物负担
8. National Dam Safety Program. Browns Falls Dam (Inventory Number NY 762), St. Lawrence River Basin, St. Lawrence County, New York. Phase I Inspection Report [R] . Stetson, J. B. 1979

机译：国家大坝安全计划。布朗斯瀑布大坝（库存号NY 762），圣劳伦斯河流域，圣劳伦斯县，纽约。第一阶段检查报告

Brown bullhead at the St. Lawrence River (Cornwall) Area of Concern: health and endocrine status in the context of tissue concentrations of PCBs and mercury

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