Modelling phytoplankton succession and nutrient transfer along the Scheldt estuary (Belgium, The Netherlands)
文献类型：期刊论文
| 作者 | Gypens, N.1; Delhez, E.2; Vanhoutte-Brunier, A.1,3; Burton, S.2; Thieu, V.4,5; Passy, P.4; Liu, Y.1,6 ; Callens, J.4; Rousseau, V.1; Lancelot, C.1
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| 刊名 | JOURNAL OF MARINE SYSTEMS
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| 出版日期 | 2013-12-01 |
| 卷号 | 128页码:89-105 |
| 关键词 | Scheldt estuary Coupled river-marine model Phytoplankton succession Nutrient export |
| ISSN号 | 0924-7963 |
| 产权排序 | [Gypens, N.; Vanhoutte-Brunier, A.; Liu, Y.; Rousseau, V.; Lancelot, C.] Univ Libre Brussels, B-1050 Brussels, Belgium; [Delhez, E.; Burton, S.] Univ Liege, MARE, B-4000 Liege, Belgium; [Vanhoutte-Brunier, A.] IFREMER, UMR Amure, Dept Econ Maritime, F-29280 Plouzane, France; [Thieu, V.; Passy, P.; Callens, J.] Univ Paris 06, UMR Sisyphe 7619, F-75005 Paris, France; [Thieu, V.] Commiss European Communities, Joint Res Ctr, I-21020 Ispra, Italy; [Liu, Y.] Chinese Acad Sci, Yantai Inst Coastal Zone Res, Yantai 264003, Peoples R China |
| 通讯作者 | Gypens, N (reprint author), Univ Libre Brussels, CP-221,Bd Triomphe, B-1050 Brussels, Belgium. ngypens@ulb.ac.be |
| 中文摘要 | The freshwater (RIVE) and the marine (MIRO) biogeochemical models were coupled to a 1D hydrosedimentary model to describe contemporary phytoplankton succession and nutrient transfers in the macrotidal Scheldt estuary (BE/NL) affected by anthropogenic nutrient loads. The 1D-RIVE-MIRO model simulations are performed between Ghent and Vlissingen and the longitudinal estuarine profiles are validated by visual and statistical comparison with physico-chemical and phytoplankton observations available for the year 2006. Results show the occurrence of two distinct spatial phytoplankton blooms in the upper and lower estuary, suggesting that neither the freshwater nor the marine phytoplankton gets over the maximum turbidity zone (MTZ) at the saline transition. Sensitivity tests performed to understand how changing conditions (salinity, turbidity and nutrients) along the estuary are controlling this bimodal spatial phytoplankton distribution identify salinity and light availability as the key drivers while the grazing pressure and nutrient limitation play a negligible role. Additional tests with varying salinity-resistant (euryhaline) species in the freshwater assemblage conclude that the presence (or absence) of euryhalines determines the magnitude and the spreading of freshwater and marine phytoplankton blooms in the estuary. Annual nutrient budgets estimated from 1D-RIVE-MIRO simulations show that biological activities have a negligible impact on nutrient export but modify the speciation of nutrients exported to the coastal zone towards inorganic forms, thus directly available to phytoplankton. The implementation of nutrient reduction options (upgrading of waste water treatment plants, conversion to organic farming) on the Scheldt watershed influences the whole estuary and affects both the magnitude and the speciation of nutrients exported to the coastal zone with expected impact on coastal phytoplankton dynamic. (c) 2012 Elsevier B.V. All rights reserved. |
| 英文摘要 | The freshwater (RIVE) and the marine (MIRO) biogeochemical models were coupled to a 1D hydrosedimentary model to describe contemporary phytoplankton succession and nutrient transfers in the macrotidal Scheldt estuary (BE/NL) affected by anthropogenic nutrient loads. The 1D-RIVE-MIRO model simulations are performed between Ghent and Vlissingen and the longitudinal estuarine profiles are validated by visual and statistical comparison with physico-chemical and phytoplankton observations available for the year 2006. Results show the occurrence of two distinct spatial phytoplankton blooms in the upper and lower estuary, suggesting that neither the freshwater nor the marine phytoplankton gets over the maximum turbidity zone (MTZ) at the saline transition. Sensitivity tests performed to understand how changing conditions (salinity, turbidity and nutrients) along the estuary are controlling this bimodal spatial phytoplankton distribution identify salinity and light availability as the key drivers while the grazing pressure and nutrient limitation play a negligible role. Additional tests with varying salinity-resistant (euryhaline) species in the freshwater assemblage conclude that the presence (or absence) of euryhalines determines the magnitude and the spreading of freshwater and marine phytoplankton blooms in the estuary. Annual nutrient budgets estimated from 1D-RIVE-MIRO simulations show that biological activities have a negligible impact on nutrient export but modify the speciation of nutrients exported to the coastal zone towards inorganic forms, thus directly available to phytoplankton. The implementation of nutrient reduction options (upgrading of waste water treatment plants, conversion to organic farming) on the Scheldt watershed influences the whole estuary and affects both the magnitude and the speciation of nutrients exported to the coastal zone with expected impact on coastal phytoplankton dynamic. (c) 2012 Elsevier B.V. All rights reserved. |
| 学科主题 | Geosciences, Multidisciplinary ; Marine & Freshwater Biology ; Oceanography |
| 研究领域[WOS] | Geology ; Marine & Freshwater Biology ; Oceanography |
| 关键词[WOS] | SOUTHERN NORTH-SEA ; FRESH-WATER ; SALINITY GRADIENT ; DIATOM SUCCESSION ; DRAINAGE NETWORK ; RIVER SYSTEMS ; CHLOROPHYLL-A ; FLUXES ; ECOSYSTEM ; DYNAMICS |
| 收录类别 | SCI |
| 资助信息 | TIMOTHY Project [P6/13]; AMORE III Belgian Federal Project [P6/13]; Science for Sustainable Development -'Belgian State - Belgian Science Policy BELSPO'; AWARE project; European Commission |
| 原文出处 | http://dx.doi.org/10.1016/j.jmarsys.2012.10.006 |
| 语种 | 英语 |
| WOS记录号 | WOS:000329010900009 |
| 公开日期 | 2014-07-08 |
| 源URL | [http://ir.yic.ac.cn/handle/133337/6930]  |
| 专题 | 烟台海岸带研究所_中科院海岸带环境过程与生态修复重点实验室 中国科学院烟台海岸带研究所 |
| 作者单位 | 1.Univ Libre Brussels, B-1050 Brussels, Belgium 2.Univ Liege, MARE, B-4000 Liege, Belgium 3.IFREMER, UMR Amure, Dept Econ Maritime, F-29280 Plouzane, France 4.Univ Paris 06, UMR Sisyphe 7619, F-75005 Paris, France 5.Commiss European Communities, Joint Res Ctr, I-21020 Ispra, Italy 6.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Yantai 264003, Peoples R China |
| 推荐引用方式 GB/T 7714 | Gypens, N.,Delhez, E.,Vanhoutte-Brunier, A.,et al. Modelling phytoplankton succession and nutrient transfer along the Scheldt estuary (Belgium, The Netherlands)[J]. JOURNAL OF MARINE SYSTEMS,2013,128:89-105. |
| APA | Gypens, N..,Delhez, E..,Vanhoutte-Brunier, A..,Burton, S..,Thieu, V..,...&Lancelot, C..(2013).Modelling phytoplankton succession and nutrient transfer along the Scheldt estuary (Belgium, The Netherlands).JOURNAL OF MARINE SYSTEMS,128,89-105. |
| MLA | Gypens, N.,et al."Modelling phytoplankton succession and nutrient transfer along the Scheldt estuary (Belgium, The Netherlands)".JOURNAL OF MARINE SYSTEMS 128(2013):89-105. |
入库方式： OAI收割
来源：烟台海岸带研究所
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