Ecological Archives E093-011-A1
S. Uthicke, F. Patel, and R. Ditchburn. 2012. Elevated land runoff after European settlement perturbs persistent foraminiferal assemblages on the Great Barrier Reefs. Ecology 93:111–121.
Appendix C (Table C1). General Characteristics of sediments and foraminiferal assemblages of 13 sediment cores from the Whitsunday area of the Great Barrier Reef. OC: organic carbon, IC: inorganic carbon, TN total; nitrogen in the sediments. FORAM index is an indicator for nutrient status on coral reefs, based on the relative abundance of “symbiont-bearing”, “opportunistic” and “heterotrophic” taxa (Hallock et al. 2003). Sample size indicates the total number of foraminifera picked from the respective core slice and identified. The densities are expressed as the total number of foraminifera per g sediment (dry weight). Age groups represent conservative groupings of the core sections into six time periods, based on 137Cs, 210Pb analyses of sediments and 14C analyses of foraminifera.
Island (Date) |
Core no. |
Depth (cm) |
OC (%) |
IC (%) |
TN (%) |
Sample Size |
Foram Index |
Density (Ind. g Sed. -1) |
Age group (yr) |
InnerReefs Long Island 10/01/2008 |
2 | surface | 0.62 | 7.24 | 0.09 | 217 | 2.04 | 175 | < 55 |
0–10 | NA | NA | NA | 214 | 1.61 | 173 | < 55 | ||
10–20 | NA | NA | NA | 255 | 1.67 | 327 | < 55 | ||
30–40 | NA | NA | NA | 226 | 1.58 | 263 | 55–150 | ||
50–60 | NA | NA | NA | 651 | 1.78 | 155 | 150–500 | ||
70–80 | NA | NA | NA | 257 | 1.82 | 756 | 500–1000 | ||
90–100 | NA | NA | NA | 338 | 2.05 | 91 | 500–1000 | ||
110–120 | NA | NA | NA | 221 | 2.38 | 884 | 1000–1500 | ||
130–140 | NA | NA | NA | 360 | 1.76 | 168 | 1000–1500 | ||
150–155 | NA | NA | NA | 217 | 1.88 | 1119 | > 1500 | ||
Long Island 11/01/2008 |
3 | surface | 0.43 | 8.67 | 0.05 | 215 | 2.01 | 155 | < 55 |
5–15 | 0.36 | 7.56 | 0.05 | 233 | 1.79 | 204 | < 55 | ||
15–25 | 0.37 | 7.81 | 0.04 | 255 | 1.68 | 230 | 55–150 | ||
35–45 | 0.31 | 7.62 | 0.04 | 318 | 1.90 | 222 | 150–500 | ||
65–75 | 0.32 | 6.55 | 0.04 | 243 | 1.69 | 136 | 500–1000 | ||
85–95 | 0.31 | 6.22 | 0.03 | 269 | 1.74 | 390 | 500–1000 | ||
105–115 | 0.32 | 6.6 | 0.04 | 235 | 1.70 | 143 | 1000–1500 | ||
125–135 | 0.31 | 6.79 | 0.04 | 920 | 1.81 | 168 | 1000–1500 | ||
135–145 | 0.3 | 7.11 | 0.03 | 235 | 1.89 | 137 | > 1500 | ||
Lindeman Island 16/01/2008 |
8 | surface | 0.35 | 8.05 | 0.05 | 263 | 3.02 | 470 | < 55 |
10.0–20.0 | 0.3 | 7.07 | 0.03 | 403 | 2.52 | 458 | < 55 | ||
30–40 | 0.24 | 7.61 | 0.03 | 588 | 3.57 | 199 | 55–150 | ||
50–60 | 0.28 | 6.04 | 0.03 | 234 | 3.17 | 183 | 55–150 | ||
70–80 | 0.24 | 6.42 | 0.03 | 347 | 2.59 | 171 | > 1500 | ||
80–87 | NA | NA | NA | 197 | 3.10 | 100 | > 1500 | ||
Lindeman Island 16/01/2008 |
9 | surface | 0.42 | 7.01 | 0.05 | 451 | 2.99 | 490 | < 55 |
10–20 | 0.42 | 6.38 | 0.05 | 875 | 2.54 | 833 | < 55 | ||
30–40 | 0.33 | 7.07 | 0.04 | 664 | 2.80 | 588 | 55–150 | ||
50–60 | 0.31 | 6.63 | 0.03 | 265 | 3.23 | 520 | 55–150 | ||
70–80 | 0.31 | 6.42 | 0.04 | 268 | 3.19 | 506 | > 1500 | ||
90–100 | 0.31 | 6.23 | 0.03 | 439 | 3.42 | 85 | > 1500 | ||
100–110 | 0.27 | 6.86 | 0.03 | 258 | 2.87 | 142 | > 1500 | ||
Outer Reefs Edward Island 13/01/2008 |
4 | surface | 0.4 | 8.46 | 0.06 | 290 | 5.63 | 274 | < 55 |
20–30 | 0.35 | 9.13 | 0.05 | 239 | 5.76 | 145 | < 55 | ||
40–50 | 0.29 | 8.68 | 0.04 | 272 | 5.02 | 252 | 55–150 | ||
60–70 | - | - | - | 235 | 5.94 | 301 | 55–150 | ||
80–90 | - | - | - | 460 | 6.81 | 138 | 500–1000 | ||
Edward Island 15/01/2008 |
7 | surface | 0.20 | 10.21 | 0.03 | 229 | 6.56 | 301 | < 55 |
10–20 | 0.16 | 10.31 | 0.03 | 675 | 6.79 | 137 | < 55 | ||
30–40 | 0.21 | 9.74 | 0.03 | 275 | 6.48 | 165 | < 55 | ||
50 to 60 | 0.17 | 9.85 | 0.03 | 226 | 7.02 | 174 | 55–150 | ||
70–80 | 0.18 | 9.6 | 0.03 | 233 | 6.27 | 181 | 55–150 | ||
90 to 100 | 0.21 | 9.29 | 0.03 | 220 | 6.35 | 196 | 1000–1500 | ||
110–120 | 0.16 | 9.49 | 0.02 | 210 | 6.17 | 134 | 1000–1500 | ||
130–140 | 0.27 | 8.1 | 0.04 | 944 | 5.61 | 288 | 1000–1500 | ||
Deloraine Island 13/01/2008 |
5 | surface | 0.18 | 10.77 | 0.03 | 201 | 7.75 | 291 | < 55 |
10–20 | 0.22 | 10.28 | 0.03 | 237 | 6.41 | 382 | < 55 | ||
30–40 | 0.22 | 10.11 | 0.03 | 263 | 6.03 | 487 | 150–500 | ||
50–60 | 0.27 | 9.34 | 0.03 | 214 | 7.04 | 363 | 150–500 | ||
70–85 | 0.22 | 10.05 | 0.03 | 348 | 6.92 | 250 | 150–500 | ||
Deloraine Island 17/01/2008 |
11 | surface | 0.28 | 10.22 | 0.04 | 321 | 6.70 | 406 | < 55 |
10–20 | 484 | 7.06 | 86 | < 55 | |||||
30–40 | 0.3 | 8.96 | 0.04 | 232 | 5.28 | 322 | 150–500 | ||
50–60 | 0.27 | 9.27 | 0.03 | 282 | 6.34 | 271 | 150–500 | ||
70–80 | 0.18 | 10.02 | 0.02 | 227 | 5.20 | 329 | 150–500 | ||
90–100 | 0.21 | 10.23 | 0.02 | 220 | 4.78 | 268 | 500–1000 | ||
Intermediate Reefs Dent Island 14/01/2008 |
6 | surface | - | - | - | 213 | 3.06 | 47 | < 55 |
0–10 | 0.18 | 7.7 | 0.03 | 274 | 2.39 | 44 | < 55 | ||
10–20 | - | - | - | 211 | 1.97 | 113 | < 55 | ||
20–30 | 0.54 | 5.47 | 0.05 | 248 | 1.83 | 435 | 55–150 | ||
30–40 | - | - | - | 218 | 1.78 | 2057 | 55–150 | ||
40–50 | 0.48 | 6.42 | 0.05 | 332 | 1.89 | 697 | 55–150 | ||
60–70 | 0.21 | 8.25 | 0.03 | 226 | 1.91 | 106 | 150–500 | ||
80–90 | 0.19 | 8.26 | 0.02 | 200 | 1.93 | 93 | > 1500 | ||
100–110 | 0.16 | 8.13 | 0.02 | 224 | 2.26 | 249 | > 1500 | ||
Double Cone Island 15/02/2008 |
12 | surface | 0.22 | 8 | 0.03 | 217 | 3.82 | 193 | < 55 |
0–10 | - | - | - | 317 | 3.84 | 254 | < 55 | ||
10–20 | 0.2 | 9.02 | 0.02 | 274 | 2.45 | 723 | < 55 | ||
20–30 | - | - | - | 245 | 3.46 | 302 | 55–150 | ||
40–50 | 0.17 | 8.78 | 0.02 | 250 | 3.21 | 523 | 150–500 | ||
60–70 | 0.20 | 8.49 | 0.02 | 203 | 3.11 | 294 | 1000–1500 | ||
90–100 | 0.21 | 8.52 | 0.03 | 250 | 2.40 | 484 | 1000–1500 | ||
110–120 | 0.19 | 7.67 | 0.02 | 216 | 2.12 | 643 | 1000–1500 | ||
Daydream Island 16/02/2008 |
12b | surface | 0.26 | 7.41 | 0.04 | 297 | 5.19 | 281 | < 55 |
0–10 | - | - | - | 549 | 1.90 | 692 | < 55 | ||
10–20 | - | - | - | 261 | 3.40 | 252 | < 55 | ||
20–30 | - | - | - | 274 | 2.50 | 373 | < 55 | ||
30–40 | 0.28 | 6.78 | 0.04 | 195 | 2.68 | 464 | < 55 | ||
50–60 | 0.25 | 6.74 | 0.03 | 236 | 2.39 | 389 | 55–150 | ||
70–80 | 0.24 | 8.2 | 0.03 | 275 | 2.43 | 241 | 500–1000 | ||
90–100 | 0.14 | 7.12 | 0.02 | 225 | 2.52 | 253 | 1000–1500 | ||
110–120 | 0.14 | 6.67 | 0.02 | 253 | 2.26 | 327 | 1000–1500 |