In the 13th and final episode of the ParAqua Podcast Joe speaks to Martyna Budziak, a PhD student from the Institute of Nature Conservation, part of the Polish Academy of Sciences, based in Krakow. Together they discuss her research into microplastics, cyanobacterial blooms and lesser known uses of algal products. The ParAqua podcast was funded by COST, the European Cooperation in Science and Technology and is a product of the ParAqua Action. If you are interested in joining the Action or just want to know more please go to www.paraqua-cost.eu . The podcast is produced by Joe Money and Serena Rasconi and the Science Communication Coordinator is Ana Gavrilović. If you have any questions or want to get in touch to discuss your research in aquatic or marine ecology please email: joemon[@]amu.edu.pl