Substrate Enhancement - Electric — North Sulawesi

OPP-JGRC8Jpermanent identifier · cite as oceanportfolio.org/p/OPP-JGRC8J

Published as: Influence of electrical fields on the performance of Acropora coral transplants on two different designs of structures | Technique: Substrate Enhancement - Electric | Genera: Acropora | Method: Examined the impacts of exposure to an electrical field on transplanted Acropora fragments. Two independent experiments assessed fragment survival and linear skeletal extension under varying electrical currents and in direct versus indirect contact to electrically charged substrate. | Survival of transplants reported by the source: 82.3333% | Post-restoration monitoring: 9 months | Authors' conclusion: Survival rates of transplants for A. yongei and A. pulchra were significantly lower when exposed to a high amperage, or when transplanted close to the bottom. Maximum skeletal extensions of transplants were observed in elevated controls of A. yongei and for A. pulchra fragments subjected to 1.67 A/m2 While a direct contact with the charged metal had a significant negative effect on growth and survival of A. yongei fragments, A. pulchra demonstrated a general tendency to smaller extension rates when exposed to an electrical current. | Lessons reported: The main advantage of the mineral accretion technique in comparison to other artificial reef structures seems to be the minimal amount of alien material needed for an artificial reef structure as it continues to ‘grow’, constantly improving its weight and stability. | 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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