نتایج جستجو برای: bioindicators

تعداد نتایج: 1050  

2000
Christina D. Relyea G. Wayne Minshall Robert J. Danehy

Fine inorganic sediment (≤ 2mm) is a major non-point source pollutant in streams. While some fine sediment in streams is natural, loads in human-impacted streams often exceed their capacity to flush these sediments during high flows. Regardless of the source, the negative effects of increased levels of fine sediment in streams are realized in all biotic components of stream ecosystems from micr...

Journal: :International Journal of Advanced Scientific Research and Management 2019

Journal: :Turkiye Klinikleri Journal of Internal Medicine 2019

A Shahsavari , A. Ashja Ardalan , K. Khodaei , N. Alnajar , N. Soltani ,

 The main goal of this study was to examine the use of cyanobacteria for evaluating the quality of running water. Accordingly epilithic cyanobacterial communities were collected in Dez River and Ojeyreb drain in south of Iran. Samples were collected in two seasons: autumn and spring. Effective physical and chemical factors on the structure of cyanobacterial communities and the dispersi...

Journal: :Journal of Biological Research - Bollettino della Società Italiana di Biologia Sperimentale 2020

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