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ELFSim—A model for evaluating management options for spatially structured reef fish populations: An illustration of the “larval subsidy” effect

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Listed:
  • Little, L.R.
  • Punt, A.E.
  • Mapstone, B.D.
  • Pantus, F.
  • Smith, A.D.M.
  • Davies, C.R.
  • McDonald, A.D.

Abstract

A spatially-structured simulation model of the metapopulation dynamics of common coral trout (Plectropomus leopardus) and their harvest by line fishing was developed to evaluate potential management options on the Great Barrier Reef (GBR), including closing areas to fishing. The effects of line fishing simulator (ELFSim) incorporates a spatially-structured model of the life-history of common coral trout, including larval dispersal, harvest by multiple fishing sectors (commercial, charter and recreational), and a range of mechanisms for regulating harvest. The model is designed to allow considerable flexibility in biological and fishery dynamics, to be portable to contexts other than the GBR, and to be modular to allow comparison of different implementations of biological and harvest model components. In this paper, we describe the details of the model and discuss its utility as a tool for evaluating fishery management strategies in the context of diverse stakeholder expectations. We illustrate a simple application by changing the rate at which larvae settle on the reef from which they were spawned, under a range of spatial closures and a scenario of steadily increasing fishing effort. The results identify the conditions under which a “larval subsidy effect” may be important to the performance of fishery management strategies. This effect was manifest as increased catches outside of areas closed to fishing when larvae were freely exchanged among reefs compared to when larval exchange was diminished or absent.

Suggested Citation

  • Little, L.R. & Punt, A.E. & Mapstone, B.D. & Pantus, F. & Smith, A.D.M. & Davies, C.R. & McDonald, A.D., 2007. "ELFSim—A model for evaluating management options for spatially structured reef fish populations: An illustration of the “larval subsidy” effect," Ecological Modelling, Elsevier, vol. 205(3), pages 381-396.
    • Handle: RePEc:eee:ecomod:v:205:y:2007:i:3:p:381-396
    DOI: 10.1016/j.ecolmodel.2007.03.005
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    References listed on IDEAS

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    1. G. P. Jones & M. J. Milicich & M. J. Emslie & C. Lunow, 1999. "Self-recruitment in a coral reef fish population," Nature, Nature, vol. 402(6763), pages 802-804, December.
    2. Boersma, P. Dee & Parrish, Julia K., 1999. "Limiting abuse: marine protected areas, a limited solution," Ecological Economics, Elsevier, vol. 31(2), pages 287-304, November.
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    Cited by:

    1. Little, L. Richard & Punt, André E. & Mapstone, Bruce D. & Begg, Gavin A. & Goldman, Barry & Williams, Ashley J., 2009. "An agent-based model for simulating trading of multi-species fisheries quota," Ecological Modelling, Elsevier, vol. 220(23), pages 3404-3412.
    2. Thébaud, Olivier & Innes, James & Norman-López, Ana & Slade, Stephanie & Cameron, Darren & Cannard, Toni & Tickell, Sharon & Kung, John & Kerrigan, Brigid & Williams, Lew & Richard Little, L., 2014. "Micro-economic drivers of profitability in an ITQ-managed fishery: An analysis of the Queensland Coral Reef Fin-Fish Fishery," Marine Policy, Elsevier, vol. 43(C), pages 200-207.
    3. Melbourne-Thomas, J. & Johnson, C.R. & Fulton, E.A., 2011. "Regional-scale scenario analysis for the Meso-American Reef system: Modelling coral reef futures under multiple stressors," Ecological Modelling, Elsevier, vol. 222(10), pages 1756-1770.
    4. Dowling, Natalie A. & Dichmont, Catherine M. & Leigh, George M. & Pascoe, Sean & Pears, Rachel J. & Roberts, Tom & Breen, Sian & Cannard, Toni & Mamula, Aaron & Mangel, Marc, 2020. "Optimising harvest strategies over multiple objectives and stakeholder preferences," Ecological Modelling, Elsevier, vol. 435(C).
    5. Gao, Lei & Hailu, Atakelty, 2013. "Identifying preferred management options: An integrated agent-based recreational fishing simulation model with an AHP-TOPSIS evaluation method," Ecological Modelling, Elsevier, vol. 249(C), pages 75-83.
    6. Figueira, Will F., 2009. "Connectivity or demography: Defining sources and sinks in coral reef fish metapopulations," Ecological Modelling, Elsevier, vol. 220(8), pages 1126-1137.

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