Martina Messione is a biologist specializing in phytoplankton in Antarctic fjords and a key player in the FjordPhyto community science project. In this discussion, she highlights the critical role of phytoplankton as the backbone of the ocean's food web and how they are affected by melting glaciers and climate change. Excitingly, tourist-collected water samples contribute valuable data to help track these shifts. Martina emphasizes the importance of ongoing research to understand and protect these tiny yet powerful organisms in a rapidly changing environment.