By Moses Mbendela Mlangeni - Nelson Mandela Metropolitan ...

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ABBREVIATIONS CERM Consortium for Estuary Research and Management CV Contingent Valuation CVM Contingent Valuation Method DEAT Department of Environmental Affairs and Tourism DWAF Department of Water Affairs and Forestry EC Eastern Cape Ha Hectares HPM Hedonic Pricing Method IDZ Industrial Development Zone INR Institute for Natural Resources KZN KwaZulu-Natal MAR Mean Annual Runoff MCM Marine and Coast Management NMMM Nelson Mandela Metropolitan Municipality NMMU Nelson Mandela Metropolitan University OLS Ordinary Least Squares SA South Africa SP Stated Preference TWTP Total Willingness to Pay WC Western Cape WTA Willingness to Accept WTP Willingness to Pay WTW Water Treatment Works WRC Water Research Commission ii
ACKNOWLEDGEMENTS My sincere gratitude goes out to the following people who have contributed to making this study successful. I would like to thank the Economics Department at NMMU, in particular Prof SG Hosking, for introducing me to natural resource economics and guiding me through my research studies. I also thank Prof Wooldridge of the Zoology Department for his valuable advice and guidance. This research was made exciting through collaborating with several colleagues including Dr M Du Preez, Mr G Dimopolous, Mr C-H Lin, Mr M Sale, Ms D Erasmus, Prof J Adams, Ms A Rajkaran, Ms N Ngesi, Ms N Twala (NMMU); Mr S Mullins, Mr G Daniels, Mr T Geldenhuys, Mr P De Wet (DWAF); Dr GR Backenberg, Dr SA Mitchell (WRC); Dr J Turpie (University of Cape Town); Mr T Crowley (NMMM); Ms E McNulty (Kenton-on-sea Tourism office) and Mr R Ball (Albany Coast Water Board). I greatly appreciate the contribution made by all participants (residents, visitors and businesses) interviewed during the survey of the Swartkops, Kariega, Mngazi and Mngazana estuaries. I also thank all my family and friends, for their encouragement and support during the challenging years of this study. The funding of the project by the Water Research Commission is gratefully acknowledged. With the Psalm of King David Below I thank the Almighty Lord for His amazing creation and for providing us with water to drink and air to breathe. Psalm 104 (excerpt) “….The waters stood above the mountains. At your rebuke they fled At the voice of Your thunder they hastened away. They went up over the mountains; They went down into the valleys To the place which You founded for them. You have set a boundary that they may not pass over That they may not return to cover the earth…” iii
Page 1: A CONTINGENT VALUATION OF RIVER WAT
Page 5 and 6: Four estuaries, the Swartkops, Kari
Page 7 and 8: CONTENTS Abbreviations…………
Page 9 and 10: 2.3.3 Step 3: Calculating average b
Page 11 and 12: 5.6 Identifying the target populati
Page 13 and 14: 9.3 Conclusion on the appropriatene
Page 15 and 16: 7.1 Number of questionnaires comple
Page 17 and 18: 7.12 Relative importance attached t
Page 20 and 21: CHAPTER 1: SOUTH AFRICAN ESTUARIES
Page 22 and 23: for the estuaries. The study builds
Page 24 and 25: 1.3.3 Estuarine bays/lagoons Estuar
Page 26 and 27: 1.4.2 Sedimentation River mouth clo
Page 28 and 29: The biggest estuary in SA is St Luc
Page 30 and 31: 1.6.6 Mangroves Mangroves are trees
Page 32 and 33: SA. Often, estuaries have unique bi
Page 34 and 35: it can result in increases in the a
Page 36 and 37: freshwater to estuaries. Recently e
Page 38 and 39: 2.1 The market for estuary services
Page 40 and 41: However, the value thereby lost is
Page 42 and 43: they claim they are willing to pay
Page 44 and 45: 2.3.1.3 The payment vehicle The pay
Page 46 and 47: left to state a figure based on the
Page 48 and 49: to the estuary. For this reason, st
Page 50 and 51: The approach assumes that sample si
Page 52 and 53:
2.3.5.1 Incentives to misrepresent
Page 54 and 55:
wrong answers and responses that ar
Page 56 and 57:
plausibility of the questions and h
Page 58 and 59:
CHAPTER 3: THE SWARTKOPS ESTUARY In
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egion and supplies water to the tow
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Swartkops estuary is incised chiefl
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visitors and the public in general
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3.3.3 Uses of the Swartkops estuary
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Table 3.4: Once-a-month count of bo
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3.3.3.2 Subsistence uses Bait colle
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complain that competition with ille
Page 74 and 75:
3.4 Identifying the target populati
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Table 3.8: Monthly flow volumes of
Page 78 and 79:
CHAPTER 4: THE KARIEGA ESTUARY Chap
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length. The system has a low turbid
Page 82 and 83:
Figure 4.2: Street Map of Kenton-on
Page 84 and 85:
municipality have been investigated
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4.5.1 Recreational uses Boating: Th
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4.5.3 Commercial and industrial use
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swimming and other activities commo
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Table 4.5: Monthly flow volumes of
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5.1 Physical description of the Mng
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5.3 Water demand in the OR Tambo di
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Figure 5.3: The Port St Johns Water
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The Post Office said fishing permit
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5.5.2 Subsistence uses Villagers re
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harvesting permits (KZN subsistence
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5.6 Identifying the target populati
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Table 5.3: Mngazi River Bungalows v
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winter. After this water levels bui
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Mngazana River itself is approximat
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Avicennia and usually in or near wa
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6.5 Water demand around the Mngazan
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Picnicking: The banks of the Mngaza
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main type of farm activity in the a
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An account of field experiences dur
Page 124 and 125:
questions were unanswered (except f
Page 126 and 127:
and Mngazana estuaries (Table 7.3).
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good understanding of the functions
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7.7), indicating that a significant
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No. of people 250 200 150 100 50 0
Page 134 and 135:
No of respondents 140 120 100 80 60
Page 136 and 137:
and Mngazana) travelled shorter dis
Page 138 and 139:
In the light of these statistical f
Page 140 and 141:
Due to the respondents refusing to
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8.3.2 Results and interpretation Re
Page 144 and 145:
8.4.2 Results and interpretation Th
Page 146 and 147:
8.5.2 Results and interpretation Fo
Page 148 and 149:
In the predictive model the adjuste
Page 150 and 151:
• The model is well fitted based
Page 152 and 153:
• For the Swartkops and Mngazana
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Table 9.1: TWTP - selected estuarie
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9.1.3 Size of user population By de
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139 particular turned out to be too
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Table 9.4: The Kariega estuary user
Page 162 and 163:
Table 9.6: The Mngazana estuary use
Page 164 and 165:
BAIRD, D., MARAIS, J.F.K. AND BATE,
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BREEN, C. AND MCKENZIE, M. (2001).
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DEPARTMENT OF ENVIRONMENTAL AFFAIRS
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HANLEY, N. AND SPASH, C.L. (1993).
Page 172 and 173:
LOFGREN, K-G. (1995). Market and ex
Page 174 and 175:
NELSON MANDELA METROPOLITAN MUNICIP
Page 176 and 177:
SCHALACHER, T.A. AND WOOLDRIDGE, T.
Page 178 and 179:
WHITFIELD, A.K. (2000). Available S
Page 180 and 181:
Region ¹ Mouth type ¹ Scientific
Page 182 and 183:
Region ¹ M outh ty pe ¹ S c ienti
Page 184 and 185:
Region ¹ Mouth type ¹ Scientific
Page 186 and 187:
FILL IN THE GAPS IN THE PERSON’S
Page 188 and 189:
12. WHAT LEVY PER YEAR ARE YOU WILL
Page 190 and 191:
171 19. DO YOU HAVE ANY OTHER COMME
Page 192 and 193:
high security, including patrols by
Page 194 and 195:
APPENDIX 5: Some common fish found
Page 196 and 197:
APPENDIX 7: Some common birds found
Page 198 and 199:
APPENDIX 9: Field experiences - Mng
Page 200 and 201:
APPENDIX 10: Some common fish found
Page 202 and 203:
owned by white people from all arou
Page 204 and 205:
APPENDIX 13:Trees of the Mngazi and
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APPENDIX 15: Example of monthly fis
Page 208 and 209:
APPENDIX 16: Example of annual fish
Page 210 and 211:
APPENDIX 17: Information brochure h
Page 212 and 213:
“The entire issue as far as the u
Page 214:
WHITFIELD, A.K. (2000). Available S
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By Moses Mbendela Mlangeni - Nelson Mandela Metropolitan ...

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