Prymnesium parvum is a species of microscopic algae known as a "golden algae" that is commonly found in both marine and freshwater environments. This species is capable of forming harmful algal blooms, which can have negative impacts on aquatic ecosystems and pose a threat to human and animal health. Researchers studying Prymnesium parvum are interested in understanding its ecology, the factors that contribute to bloom formation, and developing strategies for managing and mitigating its harmful effects. Additionally, research on Prymnesium parvum may also focus on its potential use as a bioindicator for water quality monitoring.