Miyuki Hyashida is the Secretary of Environment and Water Resources of the State of Tocantins, Brazil. She has a degree in Dentistry from the Pharmacy and Dentistry School of the University of São Paulo (FOF/USP) and was mayor of Brejinho of Nazaré (TO) for three terms (2005/2008, 2009/2012, and 2017/2020). In the state administration, she served as Undersecretary of Fisheries and Aquaculture in 2011, when she left the City Hall. In 2012, she took over as president of the Rural Development Institute of the State of Tocantins (Ruraltins), being the first woman to head the state body. She contributed to the Tocantins’s Association of Municipalities (ATM), as Director of Administration and chaired the National Commission of Aquaculture and Fisheries of the National Confederation of Agriculture (CNA). She is an entrepreneur in the aquaculture segment, and owns Aquiculture Fazenda São Paulo, a reference in the production of native fish fingerlings. The company’s performance in the sector was fundamental for the effectiveness and consolidation of the fish farming chain in Tocantins.