Sebastian Overmans




Building 2, Level 2, 2246-WS11 📞Tel: +966 (12) 808 2491


My research aims to characterize the impacts of UV-B radiation on key Red Sea biota, encompassing keystone species in benthic (macroalgae, corals) and pelagic (phytoplankton, larvae) habitats. I use data from field observations and field and laboratory experiments to assess impacts of UV radiation at multiple levels: molecular, cellular, physiological, organismal, holobiont and population level. A further aim of my research is to elucidate complex interactions mediated by UV light for selected Red Sea organisms, focusing on UV-driven constraints on organismal life history, as well as possible benefits of UV-B exposure.

Research Interest

Global Change, Reef Ecology, Plankton Ecology, Biological Oceanography, Ocean Optics, UV-B radiation

Selected Publications

  • Overmans, S., & S . Agusti.  Latitudinal Gradient of UV Attenuation Along the Highly Transparent Red Sea Basin. Photochemistry and photobiology. 2019
  • Overmans S.; Nordborg M.; Díaz-Rúa R., Brinkman D.; Negri P.; Agustí S. Phototoxic effects of PAH and UV-A exposure on molecular responses and developmental success in coral larvae. Aquat Toxicol. 198:165-174. 2018.


  • Ph.D. Student, King Abdullah University of Science and Technology, KAUST, Saudi Arabia, 2016 - present
  • M.Sc., Marine Biology, University of Essex, Colchester, UK, 2013
  • B.Sc., Biology, Bath University, Bath, UK, 2012

Professional Profile

  • 2013 - 2016: Assistant Livestock Manager, Charterhouse Aquatics, London, UK

Scientific and Professional Membership

● Association for the Sciences of Limnology and Oceanography (ASLO)
● International Society for Reef Studies (ISRS)
● Royal Society of Biology (RSB)


Santander Master's Scholarship

KAUST Affiliations

Red Sea Research Center (RSRC)