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Maximum sustainable yield and species extinction in ecosystems

Author

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  • Legović, Tarzan
  • Klanjšček, Jasminka
  • Geček, Sunčana

Abstract

With intent to help fisherman catch the most fish in the long run and to protect fish populations from extinction, major world fisheries regulation agencies have passed recommendations to implement sustainability in fisheries through the application of “maximum sustainable yield” (MSY). We show that application of MSY policy will lead to extinction of a large number of fish species in most ecosystems. More precisely, we show: approaching MSY in ecosystems means that most likely fish species will be driven to extinction in every fishery that includes exploitation of at least one trophic level which is directly or indirectly used as food for a higher trophic level. Because such single and multispecies fisheries make up a great majority of existing fisheries, attempts to reach MSY should be discouraged instead of being legally prescribed as a goal. Based on our result, we offer a simple prescription for managing a fishery in agreement with the Convention on Biological Diversity.

Suggested Citation

  • Legović, Tarzan & Klanjšček, Jasminka & Geček, Sunčana, 2010. "Maximum sustainable yield and species extinction in ecosystems," Ecological Modelling, Elsevier, vol. 221(12), pages 1569-1574.
  • Handle: RePEc:eee:ecomod:v:221:y:2010:i:12:p:1569-1574
    DOI: 10.1016/j.ecolmodel.2010.03.024
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    References listed on IDEAS

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    1. Legović, Tarzan, 2008. "Impact of demersal fishery and evidence of the Volterra principle to the extreme in the Adriatic Sea," Ecological Modelling, Elsevier, vol. 212(1), pages 68-73.
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    Citations

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    Cited by:

    1. Legović, Tarzan & Geček, Sunčana, 2012. "Impact of maximum sustainable yield on mutualistic communities," Ecological Modelling, Elsevier, vol. 230(C), pages 63-72.
    2. Ghosh, Bapan & Kar, T.K., 2014. "Sustainable use of prey species in a prey–predator system: Jointly determined ecological thresholds and economic trade-offs," Ecological Modelling, Elsevier, vol. 272(C), pages 49-58.
    3. Legović, Tarzan & Geček, Sunčana, 2010. "Impact of maximum sustainable yield on independent populations," Ecological Modelling, Elsevier, vol. 221(17), pages 2108-2111.
    4. Das, Debabrata & Kar, T.K. & Pal, Debprasad, 2023. "The impact of invasive species on some ecological services in a harvested predator–prey system," Mathematics and Computers in Simulation (MATCOM), Elsevier, vol. 212(C), pages 66-90.
    5. Barman, Binandita & Ghosh, Bapan, 2019. "Explicit impacts of harvesting in delayed predator-prey models," Chaos, Solitons & Fractals, Elsevier, vol. 122(C), pages 213-228.
    6. Rajni, & Ghosh, Bapan, 2022. "Multistability, chaos and mean population density in a discrete-time predator–prey system," Chaos, Solitons & Fractals, Elsevier, vol. 162(C).
    7. Kar, T.K. & Ghosh, Bapan, 2013. "Impacts of maximum sustainable yield policy to prey–predator systems," Ecological Modelling, Elsevier, vol. 250(C), pages 134-142.
    8. Móréh, Ágnes & Endrédi, Anett & Piross, Sándor Imre & Jordán, Ferenc, 2021. "Topology of additive pairwise effects in food webs," Ecological Modelling, Elsevier, vol. 440(C).
    9. Woodall, Hannah & Bullock, James M. & White, Steven M., 2014. "Modelling the harvest of an insect pathogen," Ecological Modelling, Elsevier, vol. 287(C), pages 16-26.
    10. Adhikary, Prabir Das & Mukherjee, Saikat & Ghosh, Bapan, 2021. "Bifurcations and hydra effects in Bazykin’s predator–prey model," Theoretical Population Biology, Elsevier, vol. 140(C), pages 44-53.
    11. Liu, Guodong & Chang, Zhengbo & Meng, Xinzhu & Liu, Siyu, 2020. "Optimality for a diffusive predator-prey system in a spatially heterogeneous environment incorporating a prey refuge," Applied Mathematics and Computation, Elsevier, vol. 384(C).

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