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| East, Miriam; Micke, Wade. |
| Risk of establishment of the freshwater climbing perch (Anabas testudineus) in mainland Queensland from the Torres Strait is high. The species is dispersed through human assistance and/or attributes that assist its own spread. The species has the potential to out-compete native freshwater and estuarine species, and has sharp well-developed gill plates and spines that may choke and kill predatory species like barramundi if swallowed. The presence of climbing perch would severely impact Queensland’s inshore and freshwater fisheries, both commercial and recreational. The net present value of expected lost fishing activity due to build-up of the climbing perch is $48.5 million when the probability of introduction is 20 per cent. Analysis of potential spending... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Invasive species; Impact; Risk; Resource /Energy Economics and Policy; Risk and Uncertainty. |
| Ano: 2008 |
URL: http://purl.umn.edu/6018 |
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| East, Miriam. |
| In the Mackay Whitsunday region, the dominant grazing based operations are small intensive systems that heavily utilise soil, nutrient and chemical management practices. To improve water quality entering the Great Barrier Reef, graziers are being encouraged to adopt improved management practices. However, while there is good understanding of the management changes required to reach improved practice classification levels, there is poor understanding of the likely economic implications for a grazier seeking to move from a lower level classification to the higher level classifications. This paper provides analysis of the costs and benefits associated with adoption of intensive grazing best management practices to determine the effect on the profitability and... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Grazing; Management practices; Incentives; Mackay Whitsunday; Farm Management. |
| Ano: 2010 |
URL: http://purl.umn.edu/59070 |
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