Wetland & Fish Ecology - Enviro Dynamics Namibia

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28 Table 3-1 Names of fish species commonly collected in iishana (species names based on Skelton 2001) Fish species Common English names Oshiwambo name Marcusenius macrolepidotus Bulldog Enyonyombi Petrocephalus catostoma Northern churchill Onziyanekunkilo Micralestes acutidens Silver robber Oontangu Brycinus lateralis Striped robber Oontangu Rhabdalestes maunensis Slender robber Oontangu Barbus bifrenatus Hyphen barb Oontangu Barbus paludinosis Straightfin barb Oontangu Barbus poechii Dashtail threespot barb Oontangu Barbus radiatus Beira barb Oontangu Clarias gariepinus Sharptooth catfish Ehepala Clarias ngamensis Blunttooth catfish Ombwishi Schilbe intermedius Silver catfish Ombanda Synodontis cf leopardinus Leopard squeaker Ongona Oreochromis andersonii Threespot tilapia Omakende Draft Environmental Impact Assessment: Oshakati Flood Mitigation Project Specialist Study: Wetland Ecology and Fish Ecology Imputs July 2012
29 Oreochromis macrochir Greenhead tilapia Omakende Tilapia rendalli Redbreast tilapia Omakende Tilapia sparrmanii Banded tilapia Omakende Orthochromis machadoi Kunene dwarf bream Omakende Pseudocrenilabrus philander Southern mouthbrooder Omakende Draft Environmental Impact Assessment: Oshakati Flood Mitigation Project Specialist Study: Wetland Ecology and Fish Ecology Imputs July 2012
Page 1 and 2: PROPOSED FLOOD MITIGATION MEASURES
Page 3 and 4: ii EXECUTIVE SUMMARY The Cuvelai Ri
Page 5 and 6: iv Decreased surface area of iishan
Page 7 and 8: vi CONTENTS EXECUTIVE SUMMARY .....
Page 9 and 10: viii 4.9 IMPACTS OF REMOVAL OF VEGE
Page 11 and 12: x Figure 4-7 Raised floor of bridge
Page 13 and 14: 1 1 INTRODUCTION 1.1 BACKGROUND: Th
Page 15 and 16: 3 were also still present although
Page 17 and 18: 5 2 LEGAL AND REGULATORY REQUIREMEN
Page 19 and 20: 7 3.1.1 CUVELAI WETLAND SYSTEM: The
Page 21 and 22: 9 Figure 3-1 below is a map of the
Page 23 and 24: 11 In the 1950s and 1960s, a progra
Page 25 and 26: 13 Recommendations to the Departmen
Page 27 and 28: 15 invertebrate fauna by Nakanwe, (
Page 29 and 30: 17 possibly via the Calueque-Oshaka
Page 31 and 32: 19 harvesting fish along the Ondang
Page 33 and 34: 21 from survivors from the last flo
Page 35 and 36: 23 As this underlines the importanc
Page 37 and 38: 25 Discussion with Mr L. Hango, Hyd
Page 39: 27 A full record of the discussion
Page 43 and 44: 31 26 June 2012 Site 5 DIKE 10 Oshi
Page 45 and 46: 33 Oshanas at end of canal, Dec 198
Page 47 and 48: 35 Fish species Common names Iishan
Page 49 and 50: 37 Fish species Common names Iishan
Page 51 and 52: 39 The following sizes of fish were
Page 53 and 54: 41 4 IMPACT ASSESMENT (OF THE DIKE
Page 55 and 56: 43 Channing and Griffin (1993) and
Page 57 and 58: 45 A) Impact related to dike and it
Page 59 and 60: 47 ISSUE POTENTIAL IMPACT UNMANAGED
Page 61 and 62: 49 blooms as has happened in Gorean
Page 63 and 64: 51 A) Impact related to dike and it
Page 67 and 68: 55 4.4 IMPACTS OF ALTERED FLOWS (VE
Page 69 and 70: 57 Figure 4-3 Inakulo Yomadhiya Gra
Page 71 and 72: 59 High fishing pressure can be exp
Page 77 and 78: 65 During low floods, especially af
Page 81 and 82: 69 Okatana channel of marginal vege
Page 83 and 84: 71 4.6 IMPACTS ON FROGS (PARTICULAR
Page 87 and 88: 75 4.7.2 IMPACT OF DEEPENING AND LI
Page 91 and 92:
79 4.8 IMPACTS OF FLOODGATE OPERATI
Page 93 and 94:
81 ISSUE POTENTIAL IMPACT UNMANAGED
Page 95 and 96:
83 4.9 IMPACTS OF REMOVAL OF VEGETA
Page 97 and 98:
85 Although only one study on the e
Page 99 and 100:
Page 101 and 102:
89 4.10 IMPACTS OF DEEPENING THE CH
Page 103 and 104:
Page 105 and 106:
93 4.11 HEALTH IMPACTS/SPREAD OF BI
Page 107 and 108:
95 POTENTIAL IMPACT UNMANAGED MANAG
Page 109 and 110:
97 4.12 COMMENT ON POTENTIAL FOR FI
Page 111 and 112:
99 This includes following the natu
Page 113 and 114:
101 5 CONCLUSIONS AND RECOMMENDATIO
Page 115 and 116:
103 6 REFERENCES Berry, H.H. (1972)
Page 117 and 118:
105 Geiss, W. (1971). A preliminary
Page 119 and 120:
107 Van der Waal, B.C.W. (2000a). F
Page 121 and 122:
109 Mr Shakelia responded that the
Page 123 and 124:
111 his earlier studies to see whic
Page 125 and 126:
113 Amaranthaceae Nymphaeceae Vahli
Page 127 and 128:
115 Poaceae Poaceae Poaceae Poaceae
Page 129 and 130:
117 Cypercaeae Cypercaeae Cypercaea
Page 131 and 132:
119 Class: Branchiopoda Order: Anos
Page 133 and 134:
121 Sars 1909 Macrothrix spinosa 18
Page 135 and 136:
123 7 1 0 Osprey Pandion haliactus
Page 137 and 138:
125 APPENDIX 3: Field Notes FIELD N
Page 139 and 140:
127 Do not foresee any impacts of w
Page 141 and 142:
129 B) FISH SURVEY RESULTS - ACTUAL
Page 143 and 144:
131 Site 4 Dike 3 Tuesday 25 June T
Page 145 and 146:
133 Site 7 Thursday 28 June - Deep
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Wetland & Fish Ecology - Enviro Dynamics Namibia

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