On Thursday, October 18, 2018 Dr. Alexander Weigand, a coordinator of DNAqua-Net COST Action, visited SubBioLab and held a lecture entitield “Why We Need Sustainable Networks Bridging Countries, Disciplines, Cultures and Generations for Aquatic Biomonitoring 2.0: A Perspective Derived From the DNAqua-Net COST Action”. He discussed the reflections, potentials and limitations of DNA-metabarking and environmental-DNA in biomonitoring.