KAUST researchers from the Red Sea Research Center are studying mesophotic reefs (40-150m deep) as potential climate refuges for corals threatened by marine heatwaves. These deeper reefs experience less heat and light stress compared to shallow-water corals. Advanced tools like submarines and robots are now enabling the study of these previously neglected ecosystems. Why it matters: Understanding the resilience of Red Sea corals could provide crucial insights for global coral reef conservation strategies amid climate change.
KAUST researchers have conducted the first measurements of deep-sea corals in the Red Sea. They retrieved specimens of three different species at depths of 300-750 meters and temperatures exceeding 20 degrees Celsius. This discovery challenges the existing understanding that deep-sea corals are exclusive to cold-water environments. Why it matters: The research expands known ecosystem boundaries for deep-sea corals and demonstrates their resilience in warm, nutrient-poor waters, offering new insights into marine biodiversity and adaptation.
The KAUST Reefscape Restoration Initiative (KRRI) observed the first-ever mass synchronized coral spawning in the northern Red Sea at NEOM’s Shushah Island. In March 2023, KRRI launched on-the-reef restoration work at Shushah, propagating nearly 5,000 corals from a dozen species, nearly half of their 2023 annual target. KRRI is testing various coral propagation techniques and nursery designs, aiming to produce half a million corals per year. Why it matters: This initiative is a major step towards coral reef restoration in the Red Sea, aligning with Saudi Arabia's sustainable development goals.
KAUST researchers are studying corals in the Red Sea and Arabian Gulf that are more tolerant of high temperatures. They are mating corals from different parts of the world, assuming that the offspring will be more heat-resistant. Using a commercial coral spawning system, the researchers can time coral spawning to cross colonies that would not naturally cross. Why it matters: This research aims to identify genes responsible for temperature resilience and use selective breeding to increase coral resilience in the face of rising ocean temperatures.
KAUST and the National Center for Wildlife (NCW) discovered an unexpected ecosystem deep below the Farasan Bank coral reef system in the Red Sea. The deep waters were inhabited by corals, fish, and other animals thriving in low oxygen and high acidity conditions. Creatures showed coping strategies like slower swimming and healthy coral growth despite conditions normally preventing calcification. Why it matters: The discovery highlights the Red Sea's significance as a natural laboratory for studying marine resilience to climate change, expanding our understanding of how marine life adapts to extreme conditions.