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Balancing economics and ecology in ocean ecosystems: A bioeconomic predator-prey model

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  • Outaaoui, Khalid
  • El Harch, Ilham Ait
  • EL Foutayeni, Youssef

Abstract

This study presents a game-theoretic model that links ecological dynamics with economic decision making in the context of Moroccan fisheries. Focusing on the interaction between European anchovy (Engraulis encrasicolus) and Anglerfish (Lophius budegassa), the model captures predator–prey relationships and enterprise-level fishing behavior. By integrating differential equations with strategic optimization, we analyze how two competing fishing sectors FENIP and MIPROMER can maximize economic returns under biological constraints. The equilibrium solutions derived through Nash-based methods highlight scenarios where both profitability and ecosystem balance can be maintained. These results provide actionable insights for designing more adaptive and sustainable fisheries policies.

Suggested Citation

  • Outaaoui, Khalid & El Harch, Ilham Ait & EL Foutayeni, Youssef, 2025. "Balancing economics and ecology in ocean ecosystems: A bioeconomic predator-prey model," Ecological Modelling, Elsevier, vol. 508(C).
    • Handle: RePEc:eee:ecomod:v:508:y:2025:i:c:s0304380025002297
    DOI: 10.1016/j.ecolmodel.2025.111243
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    References listed on IDEAS

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    1. Clark, Colin W. & Munro, Gordon R., 1975. "The economics of fishing and modern capital theory: A simplified approach," Journal of Environmental Economics and Management, Elsevier, vol. 2(2), pages 92-106, December.
    2. H. Scott Gordon, 1954. "The Economic Theory of a Common-Property Resource: The Fishery," Palgrave Macmillan Books, in: Chennat Gopalakrishnan (ed.), Classic Papers in Natural Resource Economics, chapter 9, pages 178-203, Palgrave Macmillan.
    3. Barnes, Belinda & Sidhu, Harvinder, 2013. "The impact of marine closed areas on fishing yield under a variety of management strategies and stock depletion levels," Ecological Modelling, Elsevier, vol. 269(C), pages 113-125.
    4. H. Scott Gordon, 1954. "The Economic Theory of a Common-Property Resource: The Fishery," Journal of Political Economy, University of Chicago Press, vol. 62(2), pages 124-124.
    5. 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.
    6. M. Seetharama Gowda & Jong-Shi Pang, 1992. "On Solution Stability of the Linear Complementarity Problem," Mathematics of Operations Research, INFORMS, vol. 17(1), pages 77-83, February.
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    Cited by:

    1. Yiren Wang & Tianhao Zhi, 2025. "Sustainability Risks under Lotka-Volterra Dynamics," Papers 2509.04780, arXiv.org, revised Oct 2025.

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