Joerg Wiedenmann is the head of the Coral Reef Laboratory at the University of Southampton and interested in the functioning of the coral-algal symbiosis and how changes in environmental conditions affect reef ecosystems. Specifically, he is working to unravel how the disturbance of the nutrient environment renders corals more susceptible to bleaching. He is involved in the discovery of new coral symbiont species that enable corals to survive in the hottest reef environments of the planet. Finally, he has produced a substantial body of work on the photophysiology of symbiotic corals including experimental studies on the effects of artificial at light (ALAN). Joerg also introduced novel fluorescent coral pigments imaging tools for medical research.
