Table 1.
Site | Environmental and Biological drivers | Sediment parameters | |||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Seagrass species and number of cores sampled in brackets | Seagrass cover (%) | Meadow type | Turbidity level | Distance to mangroves (m) | <63 µm (%) | DBD (g cm−3) | Corg (%) | δ13C (‰) | Corg stocks (mg Corg cm−3) | ||||||
Redcliffe | Z. muelleri (1); H. ovalis (1); H. decipiens (1) | 0–1 | patchy | high | 140–140 | 80.17 | 85.19 | 0.38 | 0.87 | 2.81 6.01 | −26.00 | −24.46 | 12.91 | 52.16 | |
Black Swan | Z. muelleri (3) | 0–10 | patchy | high | 200–300 | 27.82 | 75.92 | 0.86 | 1.48 | 0.87 2.92 | −25.67 | −24.72 | 11.26 | 35.58 | |
Fishermans Landing | Z. muelleri (2); H. ovalis (1) | 0–1 | patchy | medium | 515–565 | 47.16 | 85.47 | 0.82 | 1.47 | 0.44 2.51 | −25.37 | −23.32 | 4.60 | 25.11 | |
Channel Islands | Z. muelleri (3) | 5–20 | patchy | medium | 100–200 | 8.29 | 35.60 | 1.25 | 2.97 | 0.28 2.03 | −25.09 | −22.51 | 4.55 | 31.81 | |
Wiggins Island | Z. muelleri (3) | 0–10 | patchy | high | 610–680 | 50.62 | 73.73 | 0.90 | 1.45 | 0.19 0.99 | −24.10 | −22.99 | 2.08 | 10.79 | |
Grahams Creek | H. decipiens (3) | 0–5 | patchy | high | 35–35 | 56.37 | 93.92 | 0.71 | 1.04 | 1.50 4.55 | −26.20 | −25.29 | 11.61 | 33.84 | |
Pelican Banks South 1 | Z. muelleri (3) | 0–15 | continuous | medium | 3500–3500 | 9.49 | 12.47 | 1.38 | 2.12 | 0.39 1.45 | −22.07 | −20.90 | 7.07 | 21.62 | |
Pelican Banks South 2 | Z. muelleri (2); H. ovalis (1) | 10–20 | continuous | medium | 3400–3400 | 7.73 | 11.56 | 1.37 | 1.93 | 0.37 2.08 | −21.83 | −19.11 | 5.21 | 34.57 | |
Pelican Banks North 1 | Z. muelleri (3) | 30–65 | continuous | low | 1230–1230 | 13.69 | 16.55 | 1.13 | 1.83 | 0.44 1.03 | −19.99 | −18.51 | 5.96 | 17.15 | |
Pelican Banks North 2 | Z. muelleri (3) | 45–70 | continuous | low | 1120–1120 | 15.02 | 18.43 | 1.06 | 1.63 | 0.39 1.17 | −19.44 | −18.61 | 5.65 | 12.41 | |
Facing Island | Z. muelleri (2); H. ovalis (1) | 0–5 | patchy | medium | 3255–3280 | 7.45 | 28.87 | 1.25 | 1.91 | 0.24 1.42 | −23.35 | −19.87 | 4.47 | 19.67 | |
Pelican Banks North 3 | Z. muelleri (3) | 57–60 | continuous | low | 1950–1950 | 9.91 | 16.11 | 1.33 | 1.75 | 0.3 1.72 | −19.17 | −18.32 | 4.70 | 24.86 | |
South Trees | Z. muelleri (3) | 0–1 | variable | medium | 150–250 | 5.96 | 17.71 | 1.12 | 1.95 | 0.18 1.57 | −24.11 | −20.44 | 3.49 | 17.52 | |
Boyne Island | H. uninervis (3) | 2–10 | variable | medium | 1000–1025 | 3.16 | 3.45 | 1.07 | 3.08 | 0.08 0.25 | −22.89 | −20.43 | 1.06 | 3.68 | |
South Facing Island | Z. muelleri (3) | 0–10 | variable | medium | 250–250 | 12.50 | 17.35 | 1.45 | 2.54 | 0.09 1.41 | −21.99 | −20.40 | 1.30 | 22.18 |
A total of 45 cores were collected in 15 sites along the estuary. For summary purposes data is shown per site but cores are treated independently on the spatial GLS models applied. Data show ranges of minimum and maximum values or category of each variable.