Coral spawning muted in 2025 after mass coral bleaching in 2024

Once a year, on the fourth month, around four days after the fourth full moon of the year, our corals release eggs and sperm all at the same time! Called mass coral spawning, this year's event was 'muted', most likely because of mass coral bleaching in 2024. Scientists say the scale of the event was similar to the spawning in 2017, which occurred months after the 2016 mass bleaching event. 

However, Dr Karenne Tun, group director of NParks’ National Biodiversity Centre noted that while spawning was muted in 2017, it improved significantly in 2018 and 2019. “Thus, we are hopeful that the corals will recover to full fecundity within the next two years if our reefs are not subjected to any further thermal or other stressors,” she added.

More about mass coral spawning and this blog post on the 2024 event