Substrate Addition - Artificial reef — Pulau Badi

OPP-D3W1KKpermanent identifier · cite as oceanportfolio.org/p/OPP-D3W1KK

Published as: Large-scale coral reef rehabilitation after blast fishing in Indonesia | Technique: Substrate Addition - Artificial reef | Disturbance addressed: Blast fishing, construction, mining, storms | Genera: mixed | Method: Deployed small, modular, open structures (spiders) to stabilize rubble and to support transplanted coral fragments. Between 2013 to 2015, approximately 11,000 structures covering 7,000 m2 were deployed over 2 ha of a reef. | Post-restoration monitoring: 36 months | Authors' conclusion: Live coral cover on the structures increased from less than 10% to >60% depending on depth, deployment date and location, and disturbances. The mean live coral cover in the rehabilitation area in October 2017 was higher than reported for reefs in many other areas in the Coral Triangle, including marine protected areas, but lower than in the no-take reference reef. At least 42 coral species were observed growing on the spiders. Surprisingly, during the massive coral bleaching in other regions during the 2014 – 2016 ENSO event, bleaching in the rehabilitation area was less than 5% cover despite… | Lessons reported: Inexpensive modular structures make coral reef rehabilitation practical on large spatial scales where the reef's physical integrity has been destroyed by blast fishing, storms, or groundings Structures that 1) allow unrestricted water flow, 2) trap broken coral fragments and rubble, and 3) stabilize the substratum effectively support high coral recruitment, growth, and diversity Removal of territ… | 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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