Modelling the Potential Fisheries Impacts on the Trophic Structure of Moreton Bay, Australia Public Deposited

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  • Tropical and sub-tropical coastal and estuarine ecosystems are complex, dynamic systems that are important in providing numerous ecological services. Globally, these ecosystems are threatened by anthropogenic activities and climate change and these, together with their complex nature, makes management of tropical and sub-tropical coastal and estuarine ecosystems difficult. Ecosystem models (e.g. Ecopath, EcoTroph,) have been useful in helping to understand the structure and functioning of these systems and are increasingly being used to help in management of human use of these ecosystems. Several models use qualitative data to help understand these systems, despite their uncertainty. Key in management of productive tropical ecosystem would be a model that can be easily applied for policy making and management decisions. However there is a problem of few or no data. In this project a heuristic approach is used to give an overview of a general subtropical coastal ecosystem using Ecopath with Ecosim (EwE) software. The potential impact of fisheries on the trophic structure in Moreton Bay are modelled using EwE; with the aim of explaining EwE as a useful management tool by developing a trophic mass-balance model. A prototype of the model will be explained where 12 functional groups (including primary producers (seagrasses/ macroalgae), detritivores (prawns), small pelagics (sardines), large pelagics (sharks), marine turtles, dugong and shorebirds) are used in the model; with the input parameters derived from data in databases, literature and stock assessments.
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  • Fondo, Esther, G. Skilleter, and M. Chaloupka. 2014. Modelling the Potential Fisheries Impacts on the Trophic Structure of Moreton Bay, Australia. In: Towards ecosystem based management of fisheries: what role can economics play?: Proceedings of the Seventeenth Biennial Conference of the International Institute of Fisheries Economics and Trade, July 7-11, 2014, Brisbane, Australia. Complied by Ann L. Shriver & Melissa Errend. Corvallis, OR: International Institute of Fisheries.
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  • description.provenance : Submitted by Melissa Errend (melissa.errend@gmail.com) on 2015-03-31T17:49:43Z No. of bitstreams: 1 Fondo 355 IIFET 2014.pdf: 600150 bytes, checksum: 4528f5279b73341e1fec998a9074ab1a (MD5)
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  • description.provenance : Approved for entry into archive by Susan Gilmont(susan.gilmont@orst.edu) on 2015-04-01T21:43:25Z (GMT) No. of bitstreams: 1 Fondo 355 IIFET 2014.pdf: 600150 bytes, checksum: 4528f5279b73341e1fec998a9074ab1a (MD5)

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