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Table 4a. Sawgrass biomass in the flume, September, 1995
[Plants are nine months old; layer in centimeters above the sediment/water interface; sample biomass in grams dry weight per square meter (gdw/m2); dead includes all dead material.]

Sample biomass (gdw/m2)
Sample designation ---- U22 U23 U16 U15
Layer Live Dead Total Live Dead Total Live Dead Total Live Dead Total
>90 44.13   44.13 47.43   47.43 49.01   49.01 63.36   63.36
60-90 100.68   100.68 103.76   103.76 68.53   68.53 95.66 3.37 99.03
40-60 93.93 5.24 99.17 113.24 13.20 126.44 85.54 4.16 89.70 104.91 5.24 110.15
20-40 123.21 3.95 127.16 111.73 18.16 129.89 126.94 3.30 130.24 110.08 11.48 121.56
0-20 159.31 43.77 203.08 152.06 42.84 194.90 123.00 35.09 158.09 146.82 22.75 169.57
total 521.26 52.96 574.22 528.23 74.20 602.43 453.02 42.55 495.57 520.83 42.84 563.67

Sample biomass (gdw/m2)
Sample designation ---- D17 D5 D10 D8
Layer Live Dead Total Live Dead Total Live Dead Total Live Dead Total
>90 26.91 1.15 28.06 51.31 1.87 53.17 32.94 5.67 38.61 50.88 4.23 55.11
60-90 69.54 3.44 72.98 140.94 3.37 144.31 80.37 2.37 82.74 93.00 8.47 101.47
40-60 100.39 9.19 109.58 132.11 7.68 139.79 81.95 12.49 94.44 93.29 5.53 98.81
20-40 138.86 28.63 167.49 158.02 17.65 175.67 109.22 29.13 138.35 131.82 12.99 144.81
0-20 159.67 51.45 211.12 217.94 47.15 265.08 122.49 30.14 152.63 170.57 25.47 196.05
total 495.36 93.86 589.22 700.31 77.72 778.02 426.97 79.80 506.77 539.56 56.69 596.25

Table 4b. Summary of sawgrass biomass in the flume, September, 1995
[Plants are nine months old; layer in centimeters above the sediment/water interface; sample biomass in grams dry weight per square meter (gdw/m2); SD = standard deviation; N = number of samples; dead includes all dead material.]

Layer Average
live
biomass		 SD N Average
dead
biomass		 SD Average
total
biomass		 SD
>90 45.75 11.36 8 1.61 26.88 47.36 10.77
60-90 94.06 23.64 8 2.63 55.79 96.69 23.64
40-60 100.67 17.06 8 7.84 55.03 108.51 17.06
20-40 126.23 19.74 8 15.66 75.03 141.90 19.74
0-20 156.48 35.92 8 37.33 88.30 193.81 35.92
total 523.19 86.44 8 65.08 295.14 588.27 86.44

Table 4c. Descriptive information on flume vegetation, September, 1995
[Plants are nine months old; layer in centimeters above the sediment/water interface; average width in millimeters.]

Large leaves Medium leaves Small leaves Large culms Small culms
Layer Average
# leaves/m2		 Average
width		 Average
# leaves/m2		 Average
width		 Average
# leaves/m2		 Average
width		 Average
# culms/m2		 Average
width		 Average
# culms/m2		 Average
width
>90 36.8 7.5 262.8 4.7 197.3 2.3        
60-90 32.3 7.2 600.1 5.2 356.1 2.3        
40-60 9.9 7.1 781.3 4.7 392.0 2.4        
20-40 9.0 7.6 630.6 4.8 446.7 2.4 38.6 7.3 58.3 4.3
0-20 19.7 9.4 164.2 5.5 83.4 3.2 121.1 9.7 104.1 4.2

Table 4d. Summary of leaves and culms in the flume, September, 1995
[Plants are nine months old; layer in centimeters above the sediment/water interface: SD = standard deviation; N = number of samples.]

Layer Total
# leaves/m2		 SD N Total
# culms/m2		 SD
>90 496.9 144.33 8    
60-90 988.5 273.45 8    
40-60 1183.1 273.45 8    
20-40 1086.3 225.66 8 96.9 32.32
0-20 267.3 82.78 8 225.2 44.56

Table 4e. Leaf area index by layer for the flume, September, 1995
[Leaf area index is calculated for live leaves and culms only; layer in centimeters above the sediment-water interface; see text for formulas.]

Layer Leaf Area Index Corrected Leaf Area Index
60-90 1.258 1.293
40-60 0.941 1.014
20-40 0.929 1.044
0-20 0.593 0.735
Total 3.721 4.086

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