University of St Andrews


Fabricio Guaman-Guevara

Photo of Fabricio Guaman-Guevara

Supervisors: Dr Bill Austin & Dr Natalie Hicks (The Scottish Association for Marine Science)


Research Title: Quantification of the effects of ocean acidification on benthic foraminifera

Description of Research:

My PhD project is focused on increasing our understanding of how ocean chemistry changes due to rising CO2 concentrations may affect foraminiferal growth rates and directly impact on consumption rates when fundamental structures are compromised. This fact may alter foraminiferal feeding/sequestration mechanisms of primary production described previously, and compromise the amount the energy transferred within marine food web and influence competitive advantage within an ecosystem. Therefore, the study aims to quantify the effects of ocean acidification on intertidal benthic foraminifera through manipulative mesocosm experiments.


I was born in Ecuador; however, I moved to Chile to pursue my undergraduate programme in Marine Biology at the University of Concepcion. Afterwards, I obtained my Master’s degree in Oceanography at the same Chilean institution. Complementary, I did a semester internship at Geovetarcentrum-Göteborgs Universitet-Sweden to develop my Master’s thesis.

In 2010, I was awarded a Scholarship for a Postgraduate programme in Ocean Observatories at the Bermuda Institute of Ocean Sciences (BIOS). This programme was sponsored by Nippon Foundation (NF)-Partnership for Observations of the Global Ocean (POGO). There, I was involved in the project “Bermuda Ocean Acidification and Coral Reef Investigation (BEACON)" under supervision of Dr Andreas Andersson. Since then, my research interests are focused on the effects of rising CO2 and ocean acidification on marine calcifying organisms in coastal environments.

In 2014, I was awarded a scholarship for my current PhD programme. My PhD thesis on the effects of ocean acidification on intertidal benthic foraminifera is supervised by Dr Bill Austin and funded by SENESCYT (National Institution of Higher Education, Science, Technology and Innovation of Ecuador).