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Sedimentation arising from agricultural run-offs, riparian habitat fragmentation and channel bank erosion has long been known to impair the structure and ecological functioning of stream and river ecosystems. This study examined the effects of fine sediment grain sizes on the functional feeding group structure of Ephemeroptera, Plecoptera and Trichoptera (EPT) in the Tsitsa River catchment in the Eastern Cape Province of South Africa. Fine sediments and EPT were sampled between August 2016 and April 2017 from eight selected sampling site

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1%). Among isolates with the bla -carrying Toronto/Rio plasmid in 2007-2018, a novel genogroup G15576 was predominant (66.7%). Isolates with the TEM-135 β-lactamase were more resistant to ciprofloxacin but were more susceptible to ceftriaxone and tetracycline than isolates with TEM-1. Seven PPNG isolates less susceptible to cefixime possessed the plasmidic bla allele and had mosaic or non-mosaic alterations within PBP2. The proportion of PPNG with the bla -carrying Toronto/Rio plasmid increased during the last 12 years. The increase