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Coastal flats energy12/13/2023 ![]() Tidal flats are affected by habitat destruction, hydrological alteration, climate change, overexploitation, and pollution 3. Tidal flats are sandwiched between marine, freshwater and land environments and are found in areas with low slopes and regular flooding 1, 2. Tidal flats are tidal dominant coastal wetlands and are characterized by high primary productivity and biological diversity in the sediment 1. The global decline in coastal wetlands is affecting a number of critical benefits and ecosystem services provided by coastal ecosystems. Taken together, this study indicates that bacterial community structure changed along the successional tidal flat series and provides new insights on the characteristics of bacterial communities in coastal ecosystems.Įstuarine and coastal ecosystems in the world play vital ecological and economic roles. Despite major compositional shifts, nitrogen, methane and energy metabolisms predicted by PICRUSt were inhibited in the winter. Meanwhile, temperature and nitrite concentration were major drivers of seasonal microbial changes. Canonical correspondence analysis identified salinity as a major environmental factor structuring the microbial community in the sediment along the successional series. Moreover, the bacterial community structure differed seasonally. Bacterial phylogenetic diversity increased while phylogenetic turnover decreased from subtidal to supratidal flats. Bacterial community composition differed significantly along the tidal flat series. Bacterial community composition and diversity were analyzed over four seasons by 16S rRNA genes using the Ion Torrent PGM platform. ![]() Here we investigated the seasonal variations of bacterial communities along a tidal flat series (subtidal, intertidal and supratidal flats) and the factors affecting the variations. ![]() ![]() Tidal flats are critical components of coastal ecosystems however, the structure and function of microbial communities in tidal flats are poorly understood. Microbes drive various biogeochemical processes in coastal ecosystems. ![]() Coastal ecosystems play significant ecological and economic roles but are threatened and facing decline. ![]()
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