BEN SCHOEMAN DOCK BERTH DEEPENING Specialist ... - Transnet

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Three commercial fishing zones exist on the West Coast: one from Cape Point to Mouille Point (zone E), one from Blouberg to Cape Columbine (zone G) and one at Robben Island (zone F) (Tarr 2000). Current (2006/2007) quotas are 12, 20 and 18 tons for E, F, and G respectively (http://www.mcm-deat.gov.za). No recreational fishing will be allowed for the 2006/2007 period due to the parlous state of the overall abalone resource. Most abalone are found on rocky reefs shallower than 10 m and are closely associated with kelp beds. 5.1.4.2 Rock lobster The whole of the Table Bay area is a rock lobster sanctuary. Neither commercial nor recreational fisheries are therefore taking place there. No actual data on poaching exist, but in comparison to other areas poaching seems to be low (DEAT/MCM observations). No regular surveys on rock lobster densities take place in Table Bay since this a nonfishing area (S. Brouwer, Rock Lobster Section, MCM, pers. comm.). In 1998/99, however, a number of diving surveys in
Table 3: Site, time, mean count (counts of lobsters in the traps) or density (numbers per 40m 2 ), sample size and the proportion of the sample greater than 75mm carapace (% legal) for rock lobsters caught using small, baited mesh traps on long lines or counted by diving surveys (modified from Mayfield & Branch 1999) Small baited mesh traps on long lines Site Time Depth Mean count ± SE Sample size % legal Table Bay (offshore) 1998 60-70m 1.11 ± 0.43 42 100 Robben Island 1998 20-30m 31.60 ± 3.74 71 0 Sea Point 1998 20-30m 42.20 ± 7.56 31 2.4 Camps Bay 1998 20-30m 54.84 ± 8.27 41 not recorded Llandudno 1998 20-30m 9.80 ± 1.68 34 19.2 Diving surveys Time Depth Density Sample % legal (per 40m 2 ) ± SE size Robben Island 1998 20-30m 8.59 ± 1.46 32 not recorded Robben Island 1999 20-30m 15.23 ± 3.58 30 not recorded Robben Island 1999
Page 1 and 2: BEN SCHOEMAN DOCK BERTH DEEPENING S
Page 3 and 4: the test organisms. The EC 5 is usu
Page 5 and 6: Turbidity Upwelling Vulnerable Wrac
Page 7 and 8: Another important issue is the poss
Page 9 and 10: 6.2.1.3 Settlement of material susp
Page 11 and 12: 2 METHODOLOGY For the assessment tw
Page 13 and 14: The proposed deepening of the Ben S
Page 15 and 16: 4.3 Cumulative effects Table Bay re
Page 17 and 18: undetectable in 80% of the measurem
Page 19 and 20: 5.1.3 Biological communities The ma
Page 21 and 22: Supralittoral fringe (Littorina zon
Page 23 and 24: Niambia sp. Coleoptera Diptera Tylo
Page 25 and 26: Midlittoral zone - The intertidal o
Page 27 and 28: Fish - Nearshore and in the sandy b
Page 29 and 30: 2000 at Robben Island revealed furt
Page 31: Table 2: Common whales and dolphins
Page 35 and 36: 150000 125000 100000 Kg 75000 50000
Page 37 and 38: sensitive because of its conservati
Page 39 and 40: Schoeman Dock occurred in 1971 (Pro
Page 41 and 42: Table 7: Hydrocarbon distributions
Page 43 and 44: care concentration ranges for cadmi
Page 45 and 46: SS mg/l Boxplot for TSS 80 60 40 20
Page 47 and 48: The mean values calculated above ar
Page 49 and 50: o o possibility of the dredge spoil
Page 51 and 52: The gravel sized component of the s
Page 53 and 54: Table 12a: London Convention Annex
Page 55 and 56: Benthos distributions in Block #1 -
Page 57 and 58: 40 40 30 Site 1A 30 Site 1B % Speci
Page 59 and 60: 2 Cluster Dendrogram and MDS ordina
Page 61 and 62: the well developed ripples in the c
Page 63 and 64: 6 IMPACT IDENTIFICATION AND ASSESSM
Page 65 and 66: Accordingly the potential environme
Page 67 and 68: Impact Assessment Table No Mitigati
Page 69 and 70: are summarised in the table and it
Page 71 and 72: Figure 21b: Predicted number of day
Page 73 and 74: considered to be low. Further, the
Page 75 and 76: A A B B B Figure 23a and b: Predict
Page 77 and 78: dependent on these include the harm
Page 79 and 80: structures. The apparent lack of su
Page 81 and 82: Diving birds such as cape cormorant
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Figure 24: The predicted worst case
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Figure 25 depicts the simulation mo
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6.2.3.2 Alteration of benthic biolo
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Impact Assessment Table No Mitigati
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Nature of impact - Turbid plumes of
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Figure 26b: Predicted worst case ex
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Figure 27b: Predicted worst case ex
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suspended sediment concentrations i
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Figure 28a: Dredge spoil dump site
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6.2.3.6 Elevated water column turbi
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The evaluation with mitigation is:
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Figure 29a: Predicted exceedance in
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6.3 Cumulative Impacts The proposed
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Impact summary Table (cont.) Impact
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Impact summary Table (cont.) Impact
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mitigated by ensuring that the Cutt
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operations at Coega Port. Prepared
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Glassom D., K. Prochazka and G.M. B
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Protekon 2006. Port of Cape Town co
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BEN SCHOEMAN DOCK BERTH DEEPENING Specialist ... - Transnet

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