Dr. Luiz Rocha from the California Academy of Sciences discussed the impact of climate change on coral reefs during a keynote lecture at KAUST. He highlighted the phenomenon of coral bleaching due to rising water temperatures and its devastating effects on marine ecosystems. Rocha also spoke about exploring mesophotic coral ecosystems (MCEs), or the "twilight zone," at depths of 60-150 meters. Why it matters: Understanding the impact of climate change on coral reefs and exploring deeper marine ecosystems is crucial for preserving marine biodiversity in the face of global warming.
A KAUST-led research team used acoustic readings to reassess fish populations in the ocean's mesopelagic zone (200-1000m depth). Published in Nature Communications, their findings indicate that mesopelagic fish quantities may be ten times greater than current estimates. The study also suggests that open-ocean ecosystems are as efficient as coastal regions in nutrient cycling. Why it matters: This discovery assigns mesopelagic fish a potentially significant, previously unrecognized role in the global carbon cycle and highlights KAUST's contribution to marine science.
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 became an organizational member of the American Academy of Underwater Sciences (AAUS), making it the only entity in Saudi Arabia with the license to provide scientific diver training and certification. KAUST and the Saudi Water Sports & Diving Federation (SWSDF) signed a Memorandum of Understanding to implement policies for scientific diving in the Kingdom. KAUST-trained divers can now dive at other member institutes, facilitating research collaborations. Why it matters: This partnership enhances KAUST's role as a hub for marine research and promotes safe scientific diving practices in Saudi Arabia.
KAUST marine biologist Maggie Johnson is studying how to accurately measure environmental conditions to optimize coral restoration, focusing on temperature and light. She highlights the variability in precision and accuracy of commercially available instruments for measuring these parameters. Johnson notes that some instruments fail in the Red Sea's warm temperatures and high salinity, providing incorrect data. Why it matters: Accurate environmental monitoring is crucial for the success of coral reef restoration efforts in the face of climate change, especially in extreme environments like the Red Sea.