KAUST researchers discovered a five-hectare bio-sedimentary formation of living stromatolites off Sheybarah Island in the Red Sea. These structures are microbial carbonates similar to fossils of early life and are only the second group found in normal marine settings. The stromatolites host a diverse microbial community, including reticulated filaments previously only found in caves. Why it matters: The discovery provides insights into early life on Earth and has implications for understanding potential life formation on Mars, while also creating a unique educational opportunity for tourism in Saudi Arabia.
A KAUST-led study has revealed a unique microbial ecosystem in the Hatiba Mons hydrothermal vent fields of the Red Sea, first documented in 2023. Using genome-resolved metagenomics, the study reconstructed over 300 microbial genomes from five vent sites. The analysis showed an ecosystem dominated by microbes capable of iron, sulfur, nitrogen, and carbon cycling, unlike most hydrothermal vents that are sulfur- and methane-based. Why it matters: The discovery provides new insights into microbial processes in extreme conditions, ocean resilience, and global carbon cycling, highlighting the interplay between geology and biology in the Red Sea.
KAUST researchers have made the first direct observations of active hydrothermal vent fields in the Red Sea, specifically on Hatiba Mons. The total active area spans 1.6 km2, the largest reported globally, with vent temperatures around 40 degrees Celsius supporting thriving microbial communities. The observations, confirmed using remotely operated underwater vehicles (ROVs), build on over a decade of data collection. Why it matters: These findings provide insights into the Red Sea's unique biological and mineralogical resources, offering a model to study the evolution of life in extreme environments.
KAUST researchers and German collaborators explored the Red Sea's depths using the RV Meteor, employing ROVs and seismic equipment to map geological and biological features. They examined underwater hot springs, microbial mats, and deep-sea brine pools, discovering hydrothermal vent fields with unique ecosystems. The research, involving multidisciplinary teams, provides insights into the Red Sea's geology, ecosystems, and biodiversity. Why it matters: Studying the Red Sea's unique environment can offer valuable knowledge about young ocean development and novel marine ecosystems, relevant for understanding similar geological formations and biodiversity hotspots in the region.
KAUST scientists discovered a new brine pool in the Red Sea, named the Afifi pool, in collaboration with Saudi Aramco. The Afifi pool is the saltiest known in the Red Sea, six times saltier than surrounding seawater, and is located at a depth of 400 meters. Researchers used a variety of tools including Niskin bottles, an Idronaut CTD, and the Research Vessel Thuwal to characterize the pool's physical and chemical properties and sample its microbiology. Why it matters: This discovery facilitates understanding of the geochemistry and microbiology of extreme ecosystems, potentially aiding in the sustainable conservation of the Red Sea and offering insights into potential extraterrestrial environments.