What method is NOT mentioned as a way to restore coral reefs after a bleaching event?

The method involving the use of artificial lighting is not commonly mentioned in coral restoration strategies after a bleaching event. Coral bleaching occurs when corals expel the symbiotic algae (zooxanthellae) living in their tissues, primarily due to stressors such as elevated water temperatures. Restoration efforts typically focus on methods that address the root causes of bleaching and enhance the resilience of coral reefs.

Transplanting resilient corals, for instance, involves moving corals that are more tolerant to heat and other stressors into areas affected by bleaching, to help repopulate and rehabilitate the ecosystem. Improving water quality is crucial, as it directly supports coral health by reducing pollutants and nutrient loading that can further stress corals. Reducing local stressors is equally important, as it prioritizes actions that eliminate or mitigate human-induced pressures such as overfishing or coastal development.

In contrast, while artificial lighting technology has potential applications in controlled settings, such as aquaculture or research, it is not commonly recognized as a viable or effective strategy in the general practice of coral reef restoration following bleaching events. This method could inadvertently disrupt natural light cycles or conditions that corals thrive in, making it less favorable compared to the more established and effective restoration techniques mentioned.