Table 1. Summary statistics for seascape metrics and patch structure variables.
Seascape category | Metric/variable | Measure | Transformation | Min. | Max. | Mean | CV |
Configuration | Distance from channel | km | Log10 | 0.8 | 13.1 | 7.3 | 43.8 |
Distance to mangroves | km | Log10 | 0.1 | 16.5 | 7.4 | 68.0 | |
Nearest neighbor | m | Log10 | 4.2 | 341.9 | 111.6 | 75.7 | |
Reef area in 1 km buffer | m2 | Log10 | 49456.0 | 1412634.0 | 311541.5 | 81.3 | |
Reef area in 500 m buffer | m2 | Log10 | 10832.0 | 310756.0 | 67834.1 | 78.8 | |
Reef area in 200 m buffer | m2 | Log10 | 95.0 | 47177.0 | 10509.0 | 91.8 | |
Composition | Area* | m2 | Log10 | 17.0 | 17660.0 | 4020.4 | 104.2 |
Area of hard substrate * | m2 | Log10 | 16.0 | 12856.0 | 2905.9 | 98.4 | |
Perimeter (m) * | m | Log1010 | 17.0 | 696.0 | 212.6 | 64.0 | |
Edge: area ratio* | ratio | Box cox | 1.0 | 36.4.0 | 14.0 | 59.5 | |
Estimated volume* † | m3 | None | 26.0 | 33342.0 | 6022.2 | 110.8 | |
Volume* Δ | m3 | Box cox | 10583.6 | 387968.6 | 112978 | 88.5 | |
Surface areaΔ | m2 | None | 653.6 | 71072.9 | 10991.5 | 111.1 | |
Patch structure | Fine-scale rugosity | index | None | 1.2 | 2.1 | 1.5 | 13.4 |
Coarse-scale rugosityΔ | index | None | 1.0 | 1.6 | 1.1 | 3.3 | |
Structural complexity | index | None | 1.0 | 3.0 | 1.7 | 54 |
All metrics and variables were quantified for each sampling site (n = 87).
*metrics included in PCA of ‘patch size’ due to multicollinearity
calculated as area * mean fine-scale rugosity
estimated from ENVI bathymetric habitat maps