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首页> 外文学位 >Abundance, diversity, and potential contamination sources of Enterococci in creeks.
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Abundance, diversity, and potential contamination sources of Enterococci in creeks.

机译：小河中肠球菌的数量，多样性和潜在污染源。

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摘要

Scope and method of study. Enterococci in creeks were evaluated with respect to temporal and spatial variation, potential sources, abundance, and diversity in surface water and sediments at eight locations under four temporal conditions.;Findings and conclusions. With the exception of one location, Enterococci concentrations exceeded the USEPA recommended level for impaired watershed, suggesting the crucial role of creek water in governing water quality in the environment. Moreover, effective storm water management is critical in maintaining water quality because concentrations of Enterococci in the surface water during highflow were approximately 100 times of those sampled during baseflow. Sediment could serve as a reservoir of Enterococci for the water system, evidenced by their high levels in sediments. Of 702 isolates evaluated, six Enterococcus species were found with Ent. feacalis being most dominant. The less dominant species such as Ent. hirae, Ent. avium, and Ent. dispar may be more useful in microbial source tracking for the watershed evaluated.
机译：研究范围和方法。对小肠中的肠球菌在四个时间条件下的八个位置的时空变化，潜在来源，丰度和地表水和沉积物的多样性进行了评估。除一个地点外，肠球菌的浓度超过了USEPA建议的分水岭受损水平，表明小溪水在控制环境水质方面起着至关重要的作用。此外，有效的雨水管理对于维持水质至关重要，因为高流量期间地表水中肠球菌的浓度约为基流期间采样浓度的100倍。沉积物可作为水系统肠球菌的储库，其沉积物中的含量很高。在评估的702种分离物中，发现了6种带有Ent的肠球菌。粪便是最主要的。优势较小的物种，例如Ent。 hirae，Ent。 avium和Ent。 Dispar可能在微生物源追踪中对评估的分水岭更为有用。

著录项

  • 作者

    Caasi, Donna Ria J.;

  • 作者单位

    Oklahoma State University.;

  • 授予单位 Oklahoma State University.;
  • 学科 Biology Microbiology.;Water Resource Management.;Agriculture Soil Science.
  • 学位 M.S.
  • 年度 2009
  • 页码 96 p.
  • 总页数 96
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 微生物学;土壤学;
  • 关键词

  • 入库时间 2022-08-17 11:38:30

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