Sediment bacterial community structures and their predicted functions implied the impacts from natural processes and anthropogenic activities in coastal area.
作者： Zhiguo Su , Tianjiao Dai , Yushi Tang , Yile Tao , Bei Huang
DOI: 10.1016/J.MARPOLBUL.2018.04.052
关键词: Estuary 、 Sediment 、 Ecosystem 、 Ecology 、 Environmental science 、 Nitrogen cycle 、 Bay 、 Salinity 、 Pollution 、 Community
摘要: Abstract Coastal ecosystem structures and functions are changing under natural anthropogenic influences. In this study, surface sediment samples were collected from disturbed zone (DZ), near estuary (NEZ), far (FEZ) of Hangzhou Bay, one the most seriously polluted bays in China. The bacterial community predicted varied significantly different zones. Firmicutes found abundantly DZ, highlighting impacts activities. Sediment total phosphorus was influential on structures. Predicted by PICRUSt analysis, DZ exceeded FEZ NEZ subcategory Xenobiotics Biodegradation Metabolism; enriched all nitrate reduction related genes, except nrfA gene. Seawater salinity inorganic nitrogen, respectively as representative factor, performed exact-oppositely nitrogen metabolism functions. changes compositions provide a new insight into human-induced pollution coastal ecosystem.
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