State of the Bay Report 2011-Final.pdf - Anchor Environmental

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State of Saldanha Bay & Langebaan Lagoon 2011 Sediments Table 5.1. Particle size composition and percentage organic carbon and nitrogen in surface sediments collected from Small Bay (SB), Big Bay (BB), Langebaan Lagoon (LL), Salamander Bay (S) and Donkergat (D) in 2011. (Particle size and TOC analysed by Scientific Services, TON analysed by CSIR). *The loss on ignition method was used to estimate TOC. These are not comparable to previous years where a CHN analyzer was used. Station %Gravel %Sand % Mud % TOC* % TON SB 1 0.00 87.18 12.82 18.12 0.735 SB 2 0.61 98.54 0.84 2.81 0.049 SB 3 2.54 95.43 2.02 3.24 0.06 SB 8 0.00 97.31 2.69 3.40 0.038 SB 9 1.63 94.32 4.04 2.21 0.109 SB 10 1.65 97.81 0.54 3.53 0.056 SB 14 0.00 93.97 6.03 9.68 0.494 SB 15 9.96 86.25 3.79 3.83 0.143 SB 16 0.27 94.66 5.07 3.47 0.159 SB 42 18.39 79.15 2.45 3.30 0.12 BB 20 3.80 93.97 2.23 0.77 0.331 BB 21 0.00 96.82 3.18 1.20 0.08 BB 22 0.37 94.35 5.29 3.89 0.076 BB 25 0.00 98.78 1.22 2.11 0.038 BB 26 1.46 91.90 6.63 5.06 0.099 BB 29 0.22 94.43 5.35 4.71 0.093 BB 30 0.00 99.71 0.29 1.95 0.014 LL 31 0.00 99.30 0.70 3.12 0.032 LL 32 0.14 99.67 0.19 1.88 0.023 LL 33 0.00 99.76 0.24 1.32 0.014 LL 34 0.81 98.48 0.71 2.38 0.022 LL 37 2.17 97.56 0.27 1.96 0.017 LL 38 4.50 94.22 1.28 4.44 0.112 LL 39 0.42 99.34 0.24 1.94 0.022 LL 40 0.66 98.99 0.35 2.12 0.039 LL 41 0.00 99.82 0.18 1.09 0.013 D1 0.85 97.88 1.27 4.54 D2 0.00 97.76 2.24 3.86 S1 4.92 92.99 2.08 3.96 S2 0.00 97.86 2.14 3.76 96 ANCHOR e n v i r o n m en t a l
State of Saldanha Bay & Langebaan Lagoon 2011 Sediments Figure 5.13. Variation in the percentage mud in sediments in Saldanha Bay and Langebaan Lagoon as indicated by the 2010 survey results. Figure 5.14. Variation in the percentage mud in sediments in Saldanha Bay and Langebaan Lagoon as indicated by the 2011 survey results. 97 ANCHOR e n v i r o n m en t a l
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State of Saldanha Bay & Langebaan L
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Jul-05 Sep-05 Nov-05 Jan-06 Mar-06
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Average Daily Flow (m3/day) Apr-03
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Average daily flow (m 3 /day) Faeca
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Afrolittorina knysnaensis (no/0.5 m
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Similarity Iron Ore Jetty Iron Ore
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Lynch Point State of Saldanha Bay &
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Dive School Jetty Schaapen East Sch
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Number of species State of Saldanha
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Fish abundance (No.m -2 ) State of
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Number of breeding pairs State of S
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Number of birds 1976 1977 1978 1979
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No. sites Abundance (no. ind. m -2
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