State of the Bay Report 2010-Final - Anchor Environmental

More documents

Recommendations

Info

Figure 6.6. Variation in the % Organic Carbon in the sediments in Saldanha Bay and Langebaan Lagoon as indicated by the 2010 survey results Anchor Environmental Figure 6.7. Variation in the % Organic Nitrogen in the sediments in Saldanha Bay and Langebaan Lagoon as indicated by the 2010 survey results State of the Bay 2010: Saldanha Bay and Langebaan Lagoon 124
% POC 18 16 14 12 10 8 6 4 2 0 % POC 18 16 14 12 10 8 6 4 2 0 % POC 18 16 14 12 10 8 6 4 2 0 Yacht club basin Mussel farm North Channel - Small Bay % POC % POC Anchor Environmental 18 16 14 12 10 8 6 4 2 0 State of the Bay 2010: Saldanha Bay and Langebaan Lagoon 125 % POC 18 16 14 12 10 8 6 4 2 0 % POC 18 16 14 12 10 8 6 4 2 0 Channel end of ore jetty Multi -purpose Quay Figure 6.8. Particulate Organic Carbon (POC) percentage occurring in sediments of Saldanha Bay at six locations between 1974 and 2010 Big Bay
Page 1:
State of the Bay 2010: Saldanha Bay
Page 5 and 6:
TABLE OF CONTENTS Anchor Environmen
Page 7 and 8:
11 BIRDS 234 Anchor Environmental 1
Page 9 and 10:
LIST OF FIGURES Anchor Environmenta
Page 11 and 12:
Anchor Environmental Figure 4.27. O
Page 13 and 14:
Anchor Environmental Figure 7.3. Ch
Page 15 and 16:
Anchor Environmental Figure 9.10. C
Page 17 and 18:
Anchor Environmental Figure 12.1. N
Page 19 and 20:
Anchor Environmental samples were c
Page 21 and 22:
EXECUTIVE SUMMARY Anchor Environmen
Page 23 and 24:
Anchor Environmental matter in the
Page 25 and 26:
Anchor Environmental considered mos
Page 27 and 28:
Anchor Environmental again in 2004,
Page 29 and 30:
Anchor Environmental Populations of
Page 31 and 32:
GLOSSARY Alien species An introduce
Page 33 and 34:
1 INTRODUCTION Anchor Environmental
Page 35 and 36:
2 STRUCTURE OF THIS REPORT Anchor E
Page 37 and 38:
Anchor Environmental complicates ma
Page 39 and 40:
Anchor Environmental observed deter
Page 41 and 42:
Anchor Environmental 4 ACTIVITIES A
Page 43 and 44:
Fish factories Small craft harbour
Page 45 and 46:
Anchor Environmental Aerial photogr
Page 47 and 48:
Anchor Environmental interferes wit
Page 49 and 50:
Anchor Environmental Figure 4.7. Nu
Page 51 and 52:
o Decrease in oxygen concentrations
Page 53 and 54:
Anchor Environmental Upgrades to th
Page 55 and 56:
Anchor Environmental Figure 4.9. A)
Page 57 and 58:
Anchor Environmental (possibly link
Page 59 and 60:
Anchor Environmental Prestedge Reti
Page 61 and 62:
Anchor Environmental the constructi
Page 63 and 64:
Number and types of vessels enterin
Page 65 and 66:
Anchor Environmental is contained b
Page 67 and 68:
Anchor Environmental include the be
Page 69 and 70:
o 33 3’S o 33 10’S Saldanha Bay
Page 71 and 72:
Anchor Environmental (1956) UNDER T
Page 73 and 74: Free ACtive Chlorine (mg/l) Amonia
Page 75 and 76: Faecal coliforms (org/100 ml) Chemi
Page 77 and 78: 4.3.7 Storm water Anchor Environmen
Page 79 and 80: Anchor Environmental sites (concent
Page 81 and 82: Anchor Environmental Discharges fro
Page 83 and 84: Anchor Environmental Table 4.9. Det
Page 85 and 86: 5 WATER QUALITY Anchor Environmenta
Page 87 and 88: Anchor Environmental Stander (1977)
Page 89 and 90: Anchor Environmental coast, result
Page 91 and 92: Anchor Environmental likely as a re
Page 93 and 94: Anchor Environmental Construction o
Page 95 and 96: Anchor Environmental Table 5.2. Per
Page 103 and 104: Counts per 100ml of sample Counts p
Page 105 and 106: Counts per 100ml of sample 10000 10
Page 107 and 108: 5.6 Trace Metal Contaminants in the
Page 109 and 110: State of the Bay 2010: Saldanha Bay
Page 111 and 112: Lead(mg/kg) Mercury (mg/kg) Cadmium
Page 113 and 114: 6 SEDIMENTS 6.1 Sediment particle s
Page 115 and 116: 6.1.2 Sediment Particle size result
Page 119 and 120: 100% 90% 80% 70% 60% 50% 40% 30% 20
Page 123: State of the Bay 2010: Saldanha Bay
Page 127 and 128: Percentage Percentage 1.8 1.6 1.4 1
Page 129 and 130: o 33 3’S o 33 10’S Yacht Club B
Page 131 and 132: Figure 6.12. Variation in the conce
Page 133 and 134: The concentrations of metals in sed
Page 135 and 136: concentrations are 56 and 29 times
Page 137 and 138: threshold of 1.2 mg/kg established
Page 139 and 140: Cadmium (mg/kg) 8 7 6 5 4 3 2 1 0 C
Page 141 and 142: Copper (mg/kg) 45 40 35 30 25 20 15
Page 143 and 144: 16000 14000 12000 10000 8000 6000 4
Page 145 and 146: In summary, elevated trace metal co
Page 147 and 148: 6.5 Summary of sediment health stat
Page 149 and 150: 7.1 Long term changes in seagrass i
Page 151 and 152: 7.2 Long term changes in Saltmarshe
Page 153 and 154: Figure 8.1. Benthic macrofauna samp
Page 155 and 156: Table 8.1. Depth at each of the sit
Page 157 and 158: these species usually provide the l
Page 159 and 160: (clustering of similar groups) (Meg
Page 161 and 162: The Big Bay samples BB 25 and BB29
Page 163 and 164: 2007/08 dredging. Other signs of th
Page 165 and 166: Wet mass per m² Wet mass per m² 4
Page 167 and 168: Big Bay Crustaceans and polychaetes
Page 169 and 170: Average number of individuals per m
Page 171 and 172: Number Individuals per m² Number I
Page 173 and 174: 8.4.2 Abundance Biomass Indices 8.4
Page 175 and 176:
and percentage organic nitrogen (PO
Page 177 and 178:
Table 8.5. W statistics at all stat
Page 179 and 180:
Figure 8.15: Variation in the diver
Page 181 and 182:
percentage of mud compared to Lange
Page 183 and 184:
Cu (mg/kg) Cd (mg/kg) Ni (mg/kg) Pb
Page 185 and 186:
contaminants. Furthermore dredging
Page 187 and 188:
areas even 5 months after the clear
Page 189 and 190:
Brittle star ( Ophiuroidea spp) Sea
Page 191 and 192:
9.2 Approach and Methodology 9.2.1
Page 193 and 194:
cover data for both mobile and sess
Page 195 and 196:
9.2.3 Data Analysis The similaritie
Page 197 and 198:
40%, co-occurring with sponges espe
Page 199 and 200:
stands of the kelp Ecklonia maxima
Page 201 and 202:
Plocamium spp. Ecklonia maxima Scut
Page 203 and 204:
20 40 A Group 1 B 60 Similarity C G
Page 205 and 206:
Percentage Cover 80 70 60 50 40 30
Page 207 and 208:
Evenness Shannon Wiener 0.9 0.8 0.7
Page 209 and 210:
2005 2008 2009 2010 Dive School Jet
Page 211 and 212:
Table 9.5. Results from the SIMPER
Page 213 and 214:
In general, the inter-annual differ
Page 215 and 216:
The temporal distribution of M. gal
Page 217 and 218:
Consistent with the previous years,
Page 219 and 220:
Saldanha and Langebaan. Results fro
Page 221 and 222:
The average abundance of the four m
Page 223 and 224:
Page 225 and 226:
Page 227 and 228:
Anchor Environmental Figure 10.5. A
Page 229 and 230:
Anchor Environmental Figure 10.7. A
Page 231 and 232:
Anchor Environmental Within Big Bay
Page 233 and 234:
Anchor Environmental 2008 and 2009
Page 235 and 236:
Anchor Environmental the islands, b
Page 237 and 238:
Anchor Environmental at Saldanha ar
Page 239 and 240:
their main prey species, sardines a
Page 241 and 242:
Anchor Environmental 2009). The eff
Page 243 and 244:
Anchor Environmental attributed to
Page 245 and 246:
Number of breeding pairs 800 700 60
Page 247 and 248:
11.3 Birds of Langebaan Lagoon 11.3
Page 249 and 250:
Anchor Environmental Figure 11.11.
Page 251 and 252:
Anchor Environmental for the gannet
Page 253 and 254:
Taxon Anchor Environmental Occurren
Page 255 and 256:
Taxon Anchor Environmental Occurren
Page 257 and 258:
Anchor Environmental 13 MANAGEMENT
Page 259 and 260:
Anchor Environmental their operatio
Page 261 and 262:
Anchor Environmental concentrations
Page 263 and 264:
Anchor Environmental changes that p
Page 265 and 266:
Anchor Environmental and slight imp
Page 267 and 268:
Birdlife International. 2010. URL w
Page 269 and 270:
Anchor Environmental penguins Sphen
Page 271 and 272:
Anchor Environmental Game, E.T., Gr
Page 273 and 274:
Anchor Environmental Kerwath, S. E.
Page 275 and 276:
Anchor Environmental Moldan, A. 197
Page 277 and 278:
Anchor Environmental Robinson, T.B.
Page 279 and 280:
Anchor Environmental Tunley KL, Att
show all

State of the Bay Report 2010-Final - Anchor Environmental

You also want an ePaper? Increase the reach of your titles

Delete template?

Save as template?