Biological Oceanography Lab
Research Group Website


Sebastian Overmans

PhD Students


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 Interests

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 BasinPhotochemistry 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 Memberships

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)