Fig. 5: Desmophyllum dianthus on coral plates and mooring.

a Corals glued on white polyamide screws, which are fixed on grey plastic plates. The plates were fixed on a white plastic holder that was installed on the rock of a coral bank. b, c Corals on grey plastic plates fixed on a metal rack of mooring. The metal rack was lowered on a pulley (yellow line, b) until the yellow stopper buoy reached the anchored stone at 300 m water depth.