One of the most commonly used methods for active coral restoration is population enhancement. Population enhancement means to increase the abundance of a species within an area or region (a population of that species). Population enhancement of corals is a valuable tool that can help corals naturally recover on local reef sites. These efforts can include one or many coral species depending on specific program goals.
If successful, population enhancement goes beyond simply adding coral colonies to reefs. The increase in abundance of corals on reefs increases the health of the ecosystem, creates essential habitat, increases reef complexity, and benefits local people through increased tourism revenue and shoreline protection. However, several considerations should be made before attempting population enhancement that can promote the success of your program. This section covers two types of coral population enhancement methods: