Dotting the I’s and crossing the T’s on the fifty shades of blue economy: an urgent step to address the UN Ocean Decade

When it comes to the seas and ocean agenda, there is a wide and diverse range of publications of scientific articles and technical reports dealing with different issues and approaches (Lee, Noh and Khim, 2020), especially in the last fifty years. There are consolidated contributions mainly from biological sciences and oceanography, however it is possible to argue that the 21st century witnesses an increase in the number of publications on the subject and the contribution of other sciences and knowledge (Kaczynski, 2011). In this context, economic science starts to study its social and economic relevance in a broader perspective (Santos, 2019), as well as other areas that highlight its role, such as law, international relations, cultural and gender studies. Traditionally, Economics used to consider the ocean particularly regarding to international maritime transport and fishing. © 2021 The authors. This is an open access article distributed under the terms of the Creative Commons license. Ocean and Coastal Research http://doi.org/10.1590/2675-2824069.21017ts RevIew