Infographic: How to Accelerate the Growth of Restored Corals

Our novel technique involves planting several small fragments of slow-growing corals onto dead coral heads. The fragments eventually fuse, forming a large colony in a fraction of the time that it takes wild corals to build reefs.

Written byHanna R. Koch, Erinn Muller, and Michael P. Crosby
| 9 min read

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ABOVE: © JULIA MOORE

At Mote Marine Laboratory, our group has developed a new approach to restoring corals, depicted below. Already, we have seen new coral form across the dead skeleton of massive brain, boulder, star, and mounding coral structures in just one or two years, instead of the hundreds of years it might take a reef to regenerate on its own. Sexual reproduction is vital to the persistence of coral populations, but sexual maturity is size-dependent in reef corals, so expediting the growth of larger corals should support faster population and reef recovery.

When corals reproduce sexually in the wild, we collect bundles of their sperm and eggs, which we bring back to the lab and use to produce new baby corals.

We also breed nursery-raised corals to produce new, genetically diverse, stress-tolerant offspring.

We generate large numbers of corals asexually by microfragmenting the colonies to produce clones.

We ...

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Published In

February 2021

Restoring Reefs

New approaches could accelerate development of outplanted corals

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