Journal article
Bacterial-derived nutrient and carbon source-sink behaviors in a sandy beach subterranean estuary
Marine Pollution Bulletin, Vol.160, 111570
11/2020
PMID: 32861939
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Source: InCites
Abstract
Microbial communities in subterranean estuaries play important roles in the biogeochemical cycle. However, the microorganisms associated with biogeochemical behaviors in subterranean estuaries have received little attention. Here, the bacterial communities were compared between the fresh and saline groundwater in a subterranean estuary. Correlation analysis between bacterial groups and salinity indicated that different species represented different groundwater types. The key bacterial groups found along the subterranean estuaries have been shown to influence organic pollutant degradation and nitrate utilization. These species may be potential candidates for the in situ bioremediation of subterranean estuaries that are contaminated with pollutants. The utilization of nitrate and organic pollutants by bacteria in subterranean estuaries serves as a nitrate sink and inorganic carbon source. Our results show the role of bacteria in remediating pollutants through submarine groundwater discharge (SGD) to the coastal ocean, and specific species may be helpful in selecting reasonable groundwater end-members and reducing SGD uncertainties.
•Significant differences in bacterial communities were found in fresh and saline submarine groundwater discharge (SGD).•Bacterial processes contributed to the nitrate sink and dissolved inorganic carbon (DIC) behavior of the studied SGDs.•Bacteria in submarine groundwater can reduce the amounts of nutrients entering the ocean via the SGD conduit.•Key bacterial groups could be candidates for in situ bioremediation of polluted SGDs.•Bacterial differences along subterranean estuaries can help in selecting appropriate groundwater end-members.
Details
- Title
- Bacterial-derived nutrient and carbon source-sink behaviors in a sandy beach subterranean estuary
- Creators
- Xiaogang Chen (Author) - State Key Laboratory of Estuarine and Coastal Research, East China Normal University, Shanghai 200241, ChinaQi Ye (Author) - State Key Laboratory of Estuarine and Coastal Research, East China Normal University, Shanghai 200241, ChinaChristian J Sanders (Author) - National Marine Science Centre, Southern Cross University, Coffs Harbour, NSW 2450, AustraliaJinzhou Du (Author) - State Key Laboratory of Estuarine and Coastal Research, East China Normal University, Shanghai 200241, ChinaJing Zhang (Author) - State Key Laboratory of Estuarine and Coastal Research, East China Normal University, Shanghai 200241, China
- Publication Details
- Marine Pollution Bulletin, Vol.160, 111570
- Publisher
- Elsevier Ltd
- Identifiers
- 991012925040102368
- Academic Unit
- National Marine Science Centre; National Centre for Flood Research
- Language
- English
- Resource Type
- Journal article