Shark biologist Dr. Greg Skomal gave a keynote lecture at KAUST's Enrichment in the Fall 2018, discussing how little is known about sharks. Skomal highlighted that 49% of shark species are data deficient in basic information. He also discussed using acoustic tags and autonomous underwater vehicles (AUVs) like the REMUS SharkCam to study shark behavior. Why it matters: This highlights KAUST's role in hosting discussions on marine biology and the application of advanced technology in ecological research.
A global census, with KAUST participation, assessed reef shark populations using Baited Remote Underwater Video Systems (BRUVS). The study found reef shark populations thrive where there are marine conservation policies and fishing regulations. However, they are scarce in areas with overfishing and poor resource protections, with sharks absent on nearly 20% of surveyed reefs. Why it matters: The research highlights the importance of conservation management for reef sharks, key apex predators and indicators of reef health, especially in the Red Sea region.
KAUST researchers developed a hybrid wireless communication system for non-invasive monitoring of marine animals, consisting of a lightweight, flexible, Bluetooth-enabled tag that stores sensor data underwater. The tag syncs data to floating receivers when the animal surfaces, which then relays the data via GSM or drones. The system is a collaboration between the Red Sea Research Center and KAUST's electrical engineering department. Why it matters: This technology provides researchers with detailed, near real-time data about marine animals, overcoming the limitations of invasive and impractical traditional tagging methods.
Researchers from KAUST and Beneath The Waves used camera tags on tiger sharks in the Bahamas to map the world's largest seagrass ecosystem, estimated at 92,000 km2. The study, published in Nature Communications, details how the sharks' movements helped validate spatial estimates of these blue carbon ecosystems. Carlos Duarte (KAUST) realized the potential of the shark movement data to map the extensive seagrass meadows in the shallow sand banks of the Bahamas. Why it matters: The innovative approach demonstrates a novel method for mapping and quantifying vast underwater ecosystems, crucial for understanding and conserving blue carbon sinks.
KAUST doctoral student Royale Hardenstine is conducting whale shark research in the Red Sea. The research is captured in a video produced by KAUST. Why it matters: This highlights KAUST's ongoing research efforts in marine biology and Red Sea ecosystems.
An international team including KAUST researchers tracked nearly 2,000 sharks using satellite tags to map their movement and space use. The study found that 24% of shark habitats overlap with pelagic longline fisheries, with higher overlap for commercially exploited species. For North Atlantic blue and shortfin mako sharks, the overlap was 76% and 62% respectively. Why it matters: This research highlights the vulnerability of sharks to industrial fishing and underscores the need for targeted conservation efforts in critical habitats.
KAUST researchers are using autonomous gliders in the Red Sea to monitor variables such as temperature, salinity, and chlorophyll, providing continuous, detailed measurements of the sea's physical and biogeochemical processes. These gliders can measure a number of variables, including temperature, salinity, chlorophyll, and concentration of dissolved organic matter. One glider was deployed for three months and monitored the formation of mesoscale eddies and anthropogenic inputs from aquaculture. Why it matters: This technology allows for a more comprehensive understanding of the Red Sea ecosystem and its dynamics, benefiting research and applications such as monitoring the impact of aquaculture, with potential implications for environmental management and sustainable resource utilization.
Researchers in Abu Dhabi developed H-SURF, a swarm of bio-inspired robotic fish for underwater data collection. Funded by the Technology Innovation Institute (TII) and conducted at Khalifa University, H-SURF uses swarm intelligence and optical communication to minimize disturbance to marine life. The project was recently recognized with the Sheikh Hamdan bin Zayed Award for Environmental Research.