1 Introduction Understanding the diverse functions performed by aquatic organisms is vital for unraveling the complex interactions and ecological processes that drive ecosystem homeostasis (Biggs et al. 2020; Laureto et al. 2015). However, certain groups, such as bacteria, protozoa, and fungi, like aquatic hyphomycetes, remain relatively understudied in terms of their functional diversity in aquatic environments (Arias-Real et al. 2023).