| Good | • > 15 species (e.g., commercially important fish, reef fish)• > 5 large groups (grouping of > 20 individuals) | • > 3 species of:– soft corals– molluscs– crustaceans & echinoderms– sponges & ascidians | • > 75% of the rig structure colonize with various classes of habitat-forming organisms (e.g., hard corals, sponge, black corals and molluscs) | • > 70% visibility• Clear/distinct view of organisms on the structures and nearby fish in close-up and far-off range of lens |
| Moderate | • 5–15 species (e.g., commercially important fish, reef fish) • < 5 large groups (grouping of > 20 individuals) | • < 3 species of:– soft corals– molluscs– crustaceans & echinoderms– sponges & ascidians | • ≥25% to < 75% of the rig structure colonize with various classes of habitat- forming organisms (e.g., hard corals, sponge, black corals and molluscs) | • 30%–70% visibility• Clear close-up view that enables identification of on-screen components• Blurry/not distinctly visible upon viewing for far-off objects |
| Poor | • < 5 species (e.g., commercially important fish, reef fish)• No large groups | • 1 species/none in any of:– soft corals– molluscs– crustaceans & echinoderms– sponges & ascidians– molluscs– crustaceans | • < 25% of the rig structure colonize with various classes of habitat-forming organisms (e.g., hard corals, sponge, black corals and molluscs) | • < 30% visibility• Unable to identify components in both close-up and far-off range |