An optimistic sign for the future.

Previously, scientists had experimented with growing coral species propagated through in-vitro fertilization (IVF) in coral reefs around Mexico, the United States, and the Caribbean. To create IVF coral, the research team collected coral eggs and fertilized them in the laboratory before transplanting them into designated marine areas.

After five years, survey results showed that, despite the record-breaking heatwave of 2023, 90% of IVF corals remained healthy; whereas only 25% of natural corals survived the extreme heatwave. Many other large populations that had existed for centuries were bleached by the temperatures.

A young coral specimen, propagated through IVF, is thriving. Behind it is a naturally occurring coral that has been bleached. (Photo: Raul Tecalco Renteria/SECORE International)

Dr. Margaret Miller, Director of Research at Secore International, a coral conservation organization, said scientists were surprised by the strong vitality of IVF corals. She believes that artificial insemination has helped the "young coral generation" increase genetic diversity, while also allowing the corals to better adapt to rising temperatures.

However, scientists also warn that over time, the heat tolerance of IVF-cultured corals is likely to decline. Therefore, while coral breeding is essential, humanity needs urgent action to address the root causes of climate change to ensure the long-term survival of coral reefs.

Source: https://nhandan.vn/tin-hieu-lac-quan-tu-san-ho-thu-tinh-nhan-tao-post831978.html