Sam Karelitz - has just defended his thesis, congratulations, Sam!


Sam received a BSc in environmental science at Plymouth State University and an MSc in marine science at the University of Otago, where he studied the interactive effects of ocean acidification on thermal tolerance of marine invertebrates.

In the Gemmell Lab, Sam’s research has focused on the role of transgenerational plasticity in acclimation of marine organisms to rapidly changing ocean conditions, with an emphasis on transcriptomic responses and population genetics. This work is in collaboration with Dr. Miles Lamare (Marine Science department) and Professor Maria Byrne (University of Sydney).


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Karelitz S., Lamare, M. D., Mos B., De Bari, H., Dworjanyn, S. A., Byrne, M., 2019. Impact of growing up in a warmer, lower pH future on offspring performance: transgenerational plasticity in a pan-tropical sea urchin. Coral Reefs. DOI: 10.1007/s00338-019-01855-z


Lamare, M., Harianto, J., Uthicke, S., Agüera, A., Karelitz, S., Pecorino, D., Chin, J., Byrne, M., 2018. Larval thermal windows in native and hybrid Pseudoboletia progeny (Echinoidea) as potential drivers of the hybridization zone. Mar Ecol Prog Ser 598:99 - 112. DOI:


Karelitz, S. E., Uthicke, S., Foo, S. A., Barker, M. F., Byrne, M., Pecorino, D. and Lamare, M. D., 2017. Ocean acidification has little effect on developmental thermal windows of echinoderms from Antarctica to the tropics. Global Change Biology, 23: 657–672.


Foo S.A., Sparks K.M., Uthicke S., Karelitz S., Barker M., Byrne M., Lamare M., 2016. Contributions of genetic and environmental variance in early development of the Antarctic sea urchin Sterechinus neumayeri in response to increased ocean temperature and acidification. Marine Biology, 1; 163 (6 ): 1-1. doi: 10.1007/s00227-016-2903-1