This report, titled ‘Non-Market Impact Valuation for Fisheries RD&E – Phase I: An Investigation and Gap Analysis of Non-Market Impact Valuation Studies for Australian Fisheries and Aquaculture RD&E’, presents the findings of the first stage of a process to assess and compile relevant, publicly available, non-market impact valuation studies for potential use in future Fisheries Research and Development Corporation (FRDC) research, development and extension (RD&E) impact assessments. The report also provides an assessment of the major gaps in the available non-market information related to the environmental and social impacts of fisheries RD&E to inform and prioritise potential future WTP studies. The project was funded to address a recommendation made in the FRDC’s November 2018 Independent Performance Review conducted by Forest Hill Consulting that stated: ‘FRDC should develop and implement with its impact assessment provider a project to assess willingness-to-pay studies of environmental attributes of fishery resources and externalities arising from aquaculture as input into future assessments of the environmental impacts of FRDC’s Environment Program.’