Andrea Y. Frommel
Research areaComparative Physiology
BSc: UCSC, Santa Cruz, California (2005)
MSc: SDU, Odense, Denmark (2008)
PhD: IFM-GEOMAR, Kiel, Germany (2012)
Postdoc: PML, Plymouth, UK (2012)
Postdoc: U Gothenburg, Tjarno, Sweden (2012-2014)
Postdoc: UCSB, Santa Barbara, California (2015-2016)
My research focuses on the effects of climate changes on commercially important marine fish. Ocean acidification, temperature and deoxygenation can have severe effects on marine organisms, especially when the stressors are coupled. Commercially exploited fish populations face the additional challenge of fishing pressure, which reduces population size, structure and genetic diversity. As fishing pressure and climate changes often act in opposing directions, commercial populations are predicted to be more vulnerable to climatic changes and less able to adapt to future conditions.In experiments, I rear eggs and larvae of commercial fish species under various treatment scenarios predicted for the future ocean and look at the effects on their survival, growth and performance. My laboratory techniques include morphometrics, biochemistry, histology, otolith analysis and gene expression.
In Colin Brauner's lab I will be focusing on the development of the gills and the trade-off between acid-base regulation and ion-exchange versus respiration under oxygen limitation and elevated/reduced pH levels in different fish species.
One project is to look at the changes in gill structure and kidneys in Arapaima as they develop from obligate water- to obligate air-breathers. Another project is on the combined effects of ocean acidification and temperature on organ structure and health in larval and juvenile kingfish, with a special focus on gills, kidney and muscle tissue.