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Water quality responses to simulated flow and nutrient reductions in the Cape Fear River Estuary and adjacent coastal region, North Carolina

Author

Listed:
  • Lin, Jing
  • Xie, Lian
  • Pietrafesa, Leonard J.
  • Xu, Hongzhou
  • Woods, Wendy
  • Mallin, Michael A.
  • Durako, Michael J.

Abstract

In order to examine system responses to high river discharge events and nutrient loading variations from the drainage basin, a coupled three-dimensional hydrodynamic and water quality model was applied in the Cape Fear River Estuary (CFRE) and its adjacent coastal region. An empirical equation was introduced in the model to represent light limitation for phytoplankton growth due to chromophoric dissolved organic matter (CDOM). Model results show that in the upper to middle estuary, light limitation controls phytoplankton growth while in the lower estuary phytoplankton growth appears to be limited by light intensity during high flow periods, but by nutrient availability during low flow periods. In the coastal ocean, nutrient availability is usually the dominant limiting factor for primary production.

Suggested Citation

  • Lin, Jing & Xie, Lian & Pietrafesa, Leonard J. & Xu, Hongzhou & Woods, Wendy & Mallin, Michael A. & Durako, Michael J., 2008. "Water quality responses to simulated flow and nutrient reductions in the Cape Fear River Estuary and adjacent coastal region, North Carolina," Ecological Modelling, Elsevier, vol. 212(3), pages 200-217.
    • Handle: RePEc:eee:ecomod:v:212:y:2008:i:3:p:200-217
    DOI: 10.1016/j.ecolmodel.2007.10.026
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    Cited by:

    1. Das, Anindita & Justić, Dubravko & Swenson, Erick, 2010. "Modeling estuarine-shelf exchanges in a deltaic estuary: Implications for coastal carbon budgets and hypoxia," Ecological Modelling, Elsevier, vol. 221(7), pages 978-985.
    2. Zheng, Lianyuan & Weisberg, Robert H., 2010. "Rookery Bay and Naples Bay circulation simulations: Applications to tides and fresh water inflow regulation," Ecological Modelling, Elsevier, vol. 221(7), pages 986-996.
    3. Duarte, B. & Valentim, J.M. & Dias, J.M. & Silva, H. & Marques, J.C. & Caçador, I., 2014. "Modelling sea level rise (SLR) impacts on salt marsh detrital outwelling C and N exports from an estuarine coastal lagoon to the ocean (Ria de Aveiro, Portugal)," Ecological Modelling, Elsevier, vol. 289(C), pages 36-44.

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