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Using a fisheries ecosystem model with a water quality model to explore trophic and habitat impacts on a fisheries stock: A case study of the blue crab population in the Chesapeake Bay

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  • Ma, Hongguang
  • Townsend, Howard
  • Zhang, Xinsheng
  • Sigrist, Maddy
  • Christensen, Villy

Abstract

Recent calls for the development of ecosystem-based fisheries management compel the development of resource management tools and linkages between existing fisheries management tools and other resource tools to enable assessment and management of multiple impacts on fisheries resources. In this paper, we describe the use of the Chesapeake Bay Fisheries Ecosystem Model (CBFEM), developed using the Ecopath with Ecosim (EwE) software, and the Chesapeake Bay Water Quality Model (WQM) to demonstrate how linkages between available modeling tools can be used to inform ecosystem-based natural resource management. The CBFEM was developed to provide strategic ecosystem information in support of fisheries management. The WQM was developed to assess impacts on water quality. The CBFEM was indirectly coupled with the WQM to assess the effects of water quality and submerged aquatic vegetation (SAV) on blue crabs. The output from two WQM scenarios (1985–1994), a baseline scenario representing actual nutrient inputs and another with reduced inputs based on a tributary management strategy, was incorporated into the CBFEM. The results suggested that blue crab biomass could be enhanced under management strategies (reduced nutrient input) when the effective search rate of blue crab young-of-the-year's (YOY's) predators or the vulnerability of blue crab YOY to its predators was adjusted by SAV. Such model linkages are important for incorporating physical and biological components of ecosystems in order to explore ecosystem-based fisheries management options.

Suggested Citation

  • Ma, Hongguang & Townsend, Howard & Zhang, Xinsheng & Sigrist, Maddy & Christensen, Villy, 2010. "Using a fisheries ecosystem model with a water quality model to explore trophic and habitat impacts on a fisheries stock: A case study of the blue crab population in the Chesapeake Bay," Ecological Modelling, Elsevier, vol. 221(7), pages 997-1004.
    • Handle: RePEc:eee:ecomod:v:221:y:2010:i:7:p:997-1004
    DOI: 10.1016/j.ecolmodel.2009.01.026
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    References listed on IDEAS

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    1. Tsehaye, Iyob & Nagelkerke, Leopold A.J., 2008. "Exploring optimal fishing scenarios for the multispecies artisanal fisheries of Eritrea using a trophic model," Ecological Modelling, Elsevier, vol. 212(3), pages 319-333.
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    Cited by:

    1. Sadchatheeswaran, Saachi & Branch, George M & Shannon, Lynne J & Moloney, Coleen L & Coll, Marta & Robinson, Tamara B, 2020. "Modelling changes in trophic and structural impacts of alien ecosystem engineers on a rocky-shore island," Ecological Modelling, Elsevier, vol. 433(C).
    2. Jiang, Long & Xia, Meng, 2017. "Wind effects on the spring phytoplankton dynamics in the middle reach of the Chesapeake Bay," Ecological Modelling, Elsevier, vol. 363(C), pages 68-80.
    3. Han, Jeong-Ho & Kumar, Hema K. & Lee, Jae Hoon & Zhang, Chang-Ik & Kim, Se-Wha & Lee, Jung-Ho & Kim, Sang Don & An, Kwang-Guk, 2011. "Integrative trophic network assessments of a lentic ecosystem by key ecological approaches of water chemistry, trophic guilds, and ecosystem health assessments along with an ECOPATH model," Ecological Modelling, Elsevier, vol. 222(19), pages 3457-3472.
    4. Hood, Raleigh R. & Shenk, Gary W. & Dixon, Rachel L. & Smith, Sean M.C. & Ball, William P. & Bash, Jesse O. & Batiuk, Rich & Boomer, Kathy & Brady, Damian C. & Cerco, Carl & Claggett, Peter & de Mutse, 2021. "The Chesapeake Bay program modeling system: Overview and recommendations for future development," Ecological Modelling, Elsevier, vol. 456(C).
    5. de Mutsert, Kim & Lewis, Kristy & Milroy, Scott & Buszowski, Joe & Steenbeek, Jeroen, 2017. "Using ecosystem modeling to evaluate trade-offs in coastal management: Effects of large-scale river diversions on fish and fisheries," Ecological Modelling, Elsevier, vol. 360(C), pages 14-26.

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