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| Autores principales: | , , , , , , , |
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| Formato: | Artículo científico |
| Lenguaje: | en |
| Publicado: |
Water research
2025
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| Materias: | |
| Acceso en línea: | https://pubmed.ncbi.nlm.nih.gov/40834734/ |
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| _version_ | 1868266162737905665 |
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| author | Liang, Wenzhao Luo, Xin Lu, Meiqing Song, Yurong Liu, Yi Chen, Zhao Liang He, Ding Jiao, Jiu Jimmy |
| author_facet | Liang, Wenzhao Luo, Xin Lu, Meiqing Song, Yurong Liu, Yi Chen, Zhao Liang He, Ding Jiao, Jiu Jimmy Liang, Wenzhao Luo, Xin Lu, Meiqing Song, Yurong Liu, Yi Chen, Zhao Liang He, Ding Jiao, Jiu Jimmy |
| collection | PubMed - marine biology |
| contents | Distinguishing the impact of river discharge and submarine groundwater discharge on phytoplankton community in coastal water. Liang, Wenzhao Luo, Xin Lu, Meiqing Song, Yurong Liu, Yi Chen, Zhao Liang He, Ding Jiao, Jiu Jimmy Phytoplankton Rivers Groundwater Salinity Hong Kong Seasons Seawater Nitrogen Primary production in coastal embayment is largely shaped by terrestrial influences, with river discharge and submarine groundwater discharge (SGD) playing pivotal roles. However, distinguishing the effects of terrestrial inputs from different sources on phytoplankton growth remains a challenge. Through integrated field investigations, laboratory experiments, and long-term data analysis, this study examines how these terrestrial inputs structure phytoplankton communities in Tolo Harbor, Hong Kong. Two-way cluster analysis revealed temperature, salinity, and nutrient availability as key environmental drivers of phytoplankton composition. Incubation experiments demonstrated that both river discharge and freshwater SGD regulate phytoplankton dynamics primarily through salinity modulation and alteration of nutrient stoichiometry, particularly NH:NO ratios. The similar community responses observed under river and fresh groundwater treatments indicate that transport-pathway-specific nutrient signatures are responsible for various phytoplankton growth responses. Importantly, SGD showed greater influence on community structure than riverine inputs, attributing to its elevated nutrient concentrations (2-fold for nitrogen and 5-fold for phosphate) and more variable stoichiometric ratios. However, the relative importance of river discharge and SGD in promoting phytoplankton growth varies regionally and is further influenced by seasonal shifts in hydrodynamic processes. |
| format | Artículo científico |
| id | pubmed_40834734 |
| institution | PubMed |
| language | en |
| publishDate | 2025 |
| publisher | Water research |
| record_format | pubmed |
| spellingShingle | Distinguishing the impact of river discharge and submarine groundwater discharge on phytoplankton community in coastal water. Liang, Wenzhao Luo, Xin Lu, Meiqing Song, Yurong Liu, Yi Chen, Zhao Liang He, Ding Jiao, Jiu Jimmy Phytoplankton Rivers Groundwater Salinity Hong Kong Seasons Seawater Nitrogen Distinguishing the impact of river discharge and submarine groundwater discharge on phytoplankton community in coastal water. Liang, Wenzhao Luo, Xin Lu, Meiqing Song, Yurong Liu, Yi Chen, Zhao Liang He, Ding Jiao, Jiu Jimmy Phytoplankton Rivers Groundwater Salinity Hong Kong Seasons Seawater Nitrogen Primary production in coastal embayment is largely shaped by terrestrial influences, with river discharge and submarine groundwater discharge (SGD) playing pivotal roles. However, distinguishing the effects of terrestrial inputs from different sources on phytoplankton growth remains a challenge. Through integrated field investigations, laboratory experiments, and long-term data analysis, this study examines how these terrestrial inputs structure phytoplankton communities in Tolo Harbor, Hong Kong. Two-way cluster analysis revealed temperature, salinity, and nutrient availability as key environmental drivers of phytoplankton composition. Incubation experiments demonstrated that both river discharge and freshwater SGD regulate phytoplankton dynamics primarily through salinity modulation and alteration of nutrient stoichiometry, particularly NH:NO ratios. The similar community responses observed under river and fresh groundwater treatments indicate that transport-pathway-specific nutrient signatures are responsible for various phytoplankton growth responses. Importantly, SGD showed greater influence on community structure than riverine inputs, attributing to its elevated nutrient concentrations (2-fold for nitrogen and 5-fold for phosphate) and more variable stoichiometric ratios. However, the relative importance of river discharge and SGD in promoting phytoplankton growth varies regionally and is further influenced by seasonal shifts in hydrodynamic processes. |
| title | Distinguishing the impact of river discharge and submarine groundwater discharge on phytoplankton community in coastal water. |
| topic | Phytoplankton Rivers Groundwater Salinity Hong Kong Seasons Seawater Nitrogen |
| url | https://pubmed.ncbi.nlm.nih.gov/40834734/ |