Coral Gardening — Okinotorishima

OPP-5YSH9Qpermanent identifier · cite as oceanportfolio.org/p/OPP-5YSH9Q

Published as: Corals mass-cultured from eggs and transplanted as juveniles to their native, remote coral reef | Technique: Coral Gardening | Genera: Acropora | Method: Eggs were obtained from captive of A. tenuis spawning and the resulting larvae and juvenile corals were cultured under laboratory conditions. A total of 564 substrates with ~63,000 juvenile corals at the age of 10 mo were transported to the native reef. They were transplanted in 3 experimental treatments, in order to evaluate effectiveness of protection by cages, hiding the juveniles under other substrates, and the effects of orientation on coral growth. | Survival of transplants reported by the source: 59% | Post-restoration monitoring: 22 months | Authors' conclusion: The cages protected the corals from predation by fishes. The unshaded, upward facing corals in the cages steadily increased their coverage nearly 4-fold in ~2 yr. In the other treatments colonies persisted, but failed to increase in cover. | Lessons reported: The large and complicated structure of the substrates used in the present experiment resulted in too many juveniles on one substrate; only a few larger colonies are needed per substrate for transplantation | This record was compiled from a published source and has not been confirmed by the organisation that carried out the work. No contribution to the condition index is recorded: the source reports survival of transplanted material, which is not a measure of ecosystem condition.

Recorded result

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