Larval Enhancement — East side

OPP-0MNB1Bpermanent identifier · cite as oceanportfolio.org/p/OPP-0MNB1B

Published as: Testing the effectiveness of direct propagation techniques for coral restoration of Acropora spp. | Technique: Larval Enhancement | Genera: Acropora | Method: Comparing the growth and survival of fragments vs sexaully produced coral propagules on sites with differing water flow regimes. Fragments attached directly onto restoration siet in tubes using zip ties. Gametes collected after spawning in the lab, allowed to fertilise and then reared for 5 days in ex situ aquaria until competent. The planula were then encouraged to settle onto ocean conditioned pushmounts (~15 per pushmount). After 4 days (=9 days post fertilisation) the mounts were transplant… | Survival of transplants reported by the source: 48.075% | Post-restoration monitoring: 18 months | Authors' conclusion: Mean growth of both species was significantly higher at the site with higher water flow. Survival was high for fragments, and not significantly different between sites, however survival of sexual propagules was relatively low, although significantly higher in the high flow site) | Lessons reported: Increase in density of larval settlement could increase survivorship by encouraging fusion of the polyps. Caging to reduce predation of recruits may also increase survival, but is difficult to scale up. | 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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