- Title
- Valuing preferences for freshwater inflows into selected Western and Southern Cape estuaries
- Creator
- Akoto, William
- Subject
- Estuarine ecology -- South Africa
- Subject
- Freshwater ecology -- South Africa
- Subject
- Estuaries -- South Africa
- Date Issued
- 2009
- Date
- 2009
- Type
- Thesis
- Type
- Masters
- Type
- MCom
- Identifier
- vital:8992
- Identifier
- http://hdl.handle.net/10948/915
- Identifier
- Estuarine ecology -- South Africa
- Identifier
- Freshwater ecology -- South Africa
- Identifier
- Estuaries -- South Africa
- Description
- An estuary is the last stage of a river. It is where the river meets the sea. Estuaries are one of the most significant features of the South African coastline. In recent years, South Africa has witnessed an increase in the demand for freshwater for both industrial and domestic purposes. At the same time, there has been a gradual deterioration of river systems and their catchments. To add to this, there has been a gradual reduction in the amount of recorded rainfall, which is the primary source of freshwater for rivers. This has resulted in decreased freshwater inflow into estuaries, a situation which poses a serious threat to the biological functioning of these estuaries and the services rendered to its recreational users. A deterioration of estuary services reduces the yield for subsistence households and their appeal for recration. This study uses the contingent valuation method as its primary methodology to elicit users' willingness-to-pay to reduce the negative impacts of reduced freshwater inflow into selected western and southern Cape estuaries. Eight estuaries were selected for this study; the Breede, Duiwenhoks, Great Berg, Kleinemond West, Mhlathuze, Swartvlei and Olifants estuaries. The contingent valuation (CV) method is widely used for studies of this nature because of its ability to capture active, passive and non-use values. The CV method involves directly asking people how much they would be willing to pay for specific environmental services. In this case, users were asked what they would be willing to pay to sustain freshwater inflows into selected estuaries in order to prevent the negative impacts of reduced inflows. The travel cost method (TCM) was uesed to generate an alternative comparative set of values for the purposes of convergence testing. This is because convergence testing is highly desirable as a validity test for CV estimates.
- Format
- xii, 168 leaves : ill. (some col.), col maps
- Format
- Publisher
- Nelson Mandela Metropolitan University
- Publisher
- Faculty of Business and Economic Sciences
- Language
- English
- Rights
- Nelson Mandela Metropolitan University
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