Lady Elliot Island, Great Barrier Reef, Queensland.

Green turtles (Chelonia mydas), Heron Island, Queensland.

Christmas worm (Spirobranchus giganteus), Holmes Reef, Queensland.

Trevally (Caranx ignobilis), Lady Elliot Island, Queensland.

Dwarf goby (Pandaka pygmaea), Davies Reef, Great Barrier Reef, Queensland.

Harlequin tuskfish (Choerodon fasciatus), Heron Island, Queensland.

Manta ray (Manta birostris), Lady Elliot Island, Queensland.

Green turtle (Chelonia mydas), Heron Island, Queensland.

Nudibranch (Nudibranchia sp.), Flinders Reef, Queensland.

Stromb (Strombus luhuanus), Heron Island, Queensland.

Wilson Island, Great Barrier Reef, Queensland.

Anemonefish (Amphiprion percula), Lady Elliot Island, Queensland.

Grey shark (Carcharhinus amblyrhynchos), Osprey Reef, Queensland.

Hermit crab (Paguroidea sp.), Myrmidon Reef, Queensland.

Flatworm (Platyhelminthes sp.), Lady Elliot Island, Queensland.

Anemonefish (Amphiprion percula) in anemone, Havannah Island, Queensland.

Wilson Reef, Queensland.

Green turtle (Chelonia mydas), Heron Island.

Nudibranch (Nudibranchia sp.), Lady Elliot Island.

For more info on the Catlin Seaview Survey, go to catlinseaviewsurvey.com.