Transplantation — North Sulawesi

OPP-1JVQB0permanent identifier · cite as oceanportfolio.org/p/OPP-1JVQB0

Published as: Poor performance of corals transplanted onto substrates of short durability | Technique: Transplantation | Genera: Acropora, Pocillopora, Isopora | Method: Three plots of each 100m² were subdivided into 100 squares of 1m² that were covered with bamboo strips, connected with nails (suitable for sea water) to frame squares. Fragments (5-10 cm) were glued to cement base (1:4 cement and sand mix), that was attached to bamboo frame using cable ties. Coral fragments were transplanted onto half the frames, alternated in chessboard pattern with frame onto which hollow concrete block (60cm high) was constructed. These structures were part of a parallel stu… | Survival of transplants reported by the source: 29.8% | Authors' conclusion: Very high mortality of transplants by the end of the study in three of 4 species (67-95%), that was partially linked to substrate disintegration. Highest survival for Isopora species (>80%), followed by Acropora species and lowest survival of Pocillopora species (<20%). Apart from one frame, all frames were damaged after the end of the experiment after ~400 days. Particularly in areas with stronger currents or waves, higher effort has to be invested in more durable attachments than bamboo. | Lessons reported: Bamboo cannot be recommended as a good general low-tech substrate method and it would be better to invest in more durable materials that provide better attachment, considering the high effort that is put into coral transplantation. Post- monitoring should last for several years to decades to monitor long-term success of substrate used. | 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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