Johnstone is an ERC ‘Hidden Hunger, Forgotten Food’ FAIRFISH project PhD student in Lancaster University’s Environment Centre, supervised by Professors Christina Hicks and Nick Graham. In 2001, he graduated with a BSc in Fisheries from Moi University, Kenya followed by a MPhil in Aquatic Resource Management in 2007. Johnstone works as a Research Scientist at the Kenya Marine and Fisheries Research Institute since April 2012 and formerly worked for three years as a Fisheries Officer at the Ministry of Fisheries Development in Kenya. Three years prior to this, he worked as a Research Assistant at the Wildlife Conservation Society in Kenya. He has worked on numerous projects including the ESPA-funded “Participatory modelling of wellbeing trade-offs in coastal Kenya”, ESPA-funded “Sustainable Poverty Alleviation from Coastal Ecosystem Services” and on the MASMA Project: “A socio-ecological assessment of fisheries in three estuarine systems of the SW Indian Ocean – identifying essential links for improved governance”. His PhD focuses on the influence of changing socio-ecological system conditions on human nutritional security and the micronutrient benefits from tropical coastal fisheries. He aims to identify the determinants of nutritional outcomes in tropical coastal fishing communities.