While welcoming the intervention of Winders and Le Heron as opening up a space for critical – and practical – engagement with so-called ‘Blue Economy’ thinking, their employment of assemblage approaches could be extended. Doing so might produce a different conceptualisation of the blue economy, while concurrently establishing new challenges for blue economic practices. In this commentary, I focus on three key areas: 1) the ontological separation of land and sea and the conceptualisation of ‘marine space’; 2) the ‘liveliness’ of oceans; and 3) practical possibilities for Blue Economy policies to draw on and engage with ‘wet ontologies’. I argue that future geographical research on the Blue Economy would benefit from moving away from categorisations of the ‘ecological’ or ‘bio’ and towards a fuller engagement with the diversity of actants and forces that contribute to the emergence of new practices, policies and (de)territorialisations
