Table 1.

Description of categories for reef slope and rugosity, estimated visually on each transect in the Keppel Island group.

Category	Description of reef slope and rugosity
1	Reef slope 0–10°. Expanses of rubble and sand with some small scattered bommies
2	Reef slope <45°. Bommies dispersed among mostly rubble and sand
3	Reef slope ˜45°. Small rubble and sand patches among bommies and/or coral structure
4	Reef slope >45°. Complex coral structure, bommies, some small over-hangs, holes, and caves
5	Reef slope ˜90°. High reef complexity, large over-hangs, holes, caves, and bommies