Ecosystems Rivers Bacteria 2 Water quality 2 water quality 2 Animals 1 Archaea 1 Archaeon 1 Assembly 1 Assembly process 1 Bacteria (microorganisms) 1 Bacterial community 1 Bacterioplankton communities 1 Bacterioplankton community 1 Bacterioplanktons 1 Biodiversity 1 Biogeography 1 China 1 Co-occurrence networks 1 Co-occurrence relationships 1 Deterioration 1 Ecological quality 1 Ecological status 1 Eukaryota 1 Eukaryote 1 Eukaryotes 1 Exact sequencing variant 1 Exact sequencing variants 1 Freshwater streams 1 Han River [Hubei-Shaanxi] 1