The three main aims for the DNAqua-Net working group 1 (WG1) have been i) to identify gaps in barcode reference libraries of European aquatic species, ii) fill these collaboration with ongoing initiatives, and iii) facilitate knowledge transfer initiate work on regions where such activity was low (Leese et al. 2016). WG1 currently has 129 members from 39 countries spanning four continents, a ma...