Made available in DSpace on 2021-06-25T10:47:53Z (GMT). No. of bitstreams: 0 Previous issue date: 2020-12-01; Strategiske Forskningsråd; Fish farming can have a negative impact on water quality and aquatic organisms due to emerging blooms of Cyanobacteria and the production of cyanotoxins. In this study, the effect of aquaculture in hydroelectric reservoirs in Brazil was evaluated in six fish farms and in upstr...