Sonja Repetti (she/her) is an interdisciplinary doctoral researcher based at the University of Helsinki and Tvärminne Zoological Station, Finland, with a passion for protists. She completed her Bachelor of Science (Honours) at the University of Melbourne in 2019, with a thesis focusing on genome dynamics of green algae. In 2022, she submitted her thesis about the effect of nutrient availability on phytoplankton trait distribution and competition outcomes along a salinity gradient for the degree of Master of Science (Environmental Change and Global Sustainability) at the University of Helsinki. She began her doctoral studies in 2023, focusing on the capacity of algae to respond and adapt to environmental change, as well as increasing public understanding and appreciation of algae. She is a doctoral researcher member of the Helsinki Institute of Sustainability Science HELSUS.