Scientists have long assumed that the physical structure and condition of stream and river channels have pervasive effects on biological communities and processes, but specific tests are few. To investigate the influence of the stream-reach geomorphic state on in-stream habitat and aquatic macroinvertebrate communities, we compared measures of habitat conditions and macroinvertebrate community ...

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Differential sensitivities to the cell wall stress caused by Congo red (CR) have been observed in many fungal species. In this study, tolerances and CR was studied with an assorted collection of species from three phylogenetic classes: Sordariomycetes, Dothideomycetes, Eurotiomycetes, orders, eight families. These grouped into different ecological niches, such as insect pathogens, plant saprotr...

Abstract Background The application of index biotic integrity (IBI) to evaluate river health can be an essential method for ecosystem management. However, these types methods were developed in small, low-order streams, and are therefore, infrequently applied large rivers. To that end, phytoplankton communities environmental variables monitored 30 sampling segments the middle lower reaches Yangt...