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.
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 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 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.
KAUST and GEOMAR Helmholtz Centre for Ocean Research Kiel collaborated on a research expedition in the Red Sea aboard the R/V Meteor in October. The first cruise (M193 REPLENISH) focused on the Al Wajh coral reefs, while the second (M194 HEXPLORES) aims to discover undiscovered black smoker hydrothermal vent fields. HEXPLORES is led by Dr. Nico Augustin from GEOMAR and Dr. Froukje van der Zwan from KAUST. Why it matters: This collaboration highlights KAUST's role in spearheading Red Sea studies and attracting global experts to the region, furthering our understanding of the Red Sea's unique ecosystem and geological features.
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.
KAUST researchers analyzed bacterial communities from Deception Island, Antarctica, finding heat-loving bacteria with potential for oil cleanup. Postdoctoral student Junia Schultz is now characterizing the microbiome of extreme terrestrial environments in Saudi Arabia, including volcanoes and deserts. These extremophiles secrete surfactants to break down oil and absorb it into their cells for degradation. Why it matters: This research could lead to efficient and safe methods for cleaning up oil contamination using extremophiles found in both Antarctica and Saudi Arabia.
A KAUST-led team used acoustic technology and net sampling to explore ocean depths in 146 locations worldwide. They found that the biomass of pelagic organisms in the deep sea is much larger than previously thought, especially below productive waters. Deep-sea fauna migrates to shallower areas to feed, transporting carbon to the deep sea. Why it matters: This suggests the ocean's carbon pump is more effective than previously understood, with implications for climate change mitigation strategies.