Larval Enhancement — Coral Bay

OPP-FYCNC6permanent identifier · cite as oceanportfolio.org/p/OPP-FYCNC6

Published as: Enhancement of coral recruitment by in situ mass culture of coral larvae. | Technique: Larval Enhancement | Genera: Acropora | Method: Creation of a floating in situ larval nursery pond (2 x 2m). Gametes and embryos were collected from the slick formed during spawning. The larvae were kept in the ponds for 7 days, until competency was determined (using CCA in vitro method). They were then flushed into a floorless mesh tent (1.8 x 1m), placed on the reef. Two seeding densities were tested (low/high). Recruit density after 6 weeks was assessed in high/low/control plots using terracotta tiles. | Post-restoration monitoring: 1.5 months | Authors' conclusion: 5% of larvae survived to 6 days in ponds. Recruitment was greatly enhanced in experimental quadrats, with the highest density treatment receiving 100 times more recruits than natural recruitment in the bay. The higher density treatment had significantly higher densities of settled recruits. | 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.

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