Coral Gardening - Hybridization — Great Barrier Reef

OPP-FQ316Bpermanent identifier · cite as oceanportfolio.org/p/OPP-FQ316B

Published as: Interspecific hybridization may provide novel opportunities for coral reef restoration | Technique: Coral Gardening - Hybridization | Disturbance addressed: General degradation | Genera: Acropora | Method: Crossed two Acropora species pairs from the GBR and examined several phenotypic traits over 28 weeks of exposure to ambient and elevated temperature and pCO2. | Survival of transplants reported by the source: 31.0625% | Post-restoration monitoring: 6.4 months | Authors' conclusion: While elevated temperature and pCO2 conditions negatively affected size and survival of both purebreds and hybrids, higher survival and larger recruit size were observed in some of the hybrid offspring groups under both ambient and elevated conditions. Further, interspecific hybrids had high fertilization rates, normal embryonic development, and similar Symbiodinium uptake and photochemical efficiency as purebred offspring. | Lessons reported: While the fitness of these hybrids in the field and their reproductive and backcrossing potential remain to be investigated, current findings provide proof-of-concept that interspecific hybridization may produce genotypes with enhanced climate resilience, and has the potential to increase the success of coral reef restoration initiatives. | 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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