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A trophic model of the coastal fisheries ecosystem off the west coast of Sabah and Sarawak, Malaysia

Author

Listed:
  • Garces, L.R.
  • Man, A.
  • Ahmad, A.T.
  • Mohamad-Norizam, M.
  • Slivestre, G.T.

Abstract

A mass-balance steady-state trophic model of the coastal fisheries ecosystem off the West Coasts of Sabah and Sarawak, Malaysia (10 - 60 m depth) was constructed using the Ecopath software. The ecosystem models were partitioned into 29 ecological/trophic groups. The input values (e.g. biomasses) for selected groups were obtained from the research (trawl) surveys conducted in the area in 1972. The estimated mean trophic level of the fisheries catch for both models is about 3.3. The biomass values obtained from Ecopath when compared with the estimates of the fishery catch indicate a low level of exploitation of coastal fisheries resources in 1972.

Suggested Citation

  • Garces, L.R. & Man, A. & Ahmad, A.T. & Mohamad-Norizam, M. & Slivestre, G.T., 2003. "A trophic model of the coastal fisheries ecosystem off the west coast of Sabah and Sarawak, Malaysia," Monographs, The WorldFish Center, number 37742, April.
    • Handle: RePEc:wfi:wfbook:37742
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    File URL: http://hdl.handle.net/20.500.12348/2138
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    Citations

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    Cited by:

    1. Ullah, Md. Hadayet & Rashed-Un-Nabi, Md. & Al-Mamun, Md. Abdulla, 2012. "Trophic model of the coastal ecosystem of the Bay of Bengal using mass balance Ecopath model," Ecological Modelling, Elsevier, vol. 225(C), pages 82-94.
    2. Salcido-Guevara, Luis A. & Arreguín-Sánchez, Francisco, 2014. "Effects of biomass changes in the supply–demand balance of energy in aquatic food webs," Ecological Modelling, Elsevier, vol. 276(C), pages 64-79.
    3. Endrédi, Anett & Senánszky, Vera & Libralato, Simone & Jordán, Ferenc, 2018. "Food web dynamics in trophic hierarchies," Ecological Modelling, Elsevier, vol. 368(C), pages 94-103.

    More about this item

    Keywords

    Fishery resources; Demersal fisheries; Fishery surveys; Biomass; Population density; Shrimp fisheries; Catch/effort; Trawling; Mathematical models; Coastal fisheries; Marine fisheries; Ecosystems; Trophic structure; ISEW; Malaysia; Sarawak; ISEW; Malaysia; Sabah;
    All these keywords.

    JEL classification:

    • Q00 - Agricultural and Natural Resource Economics; Environmental and Ecological Economics - - General - - - General

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