Historian Yuval Harari writes in his 21 Lessons for the 21st Century that due to increasing automation and robotization, large groups of people will probably become completely redundant in the labour market in the near future. He proposes a basic income as a solution. In this article it is argued that …

In this study, we compared the early fish colonization of three types of artificial reefs deployed in the coastal waters of Saba and St Eustatius in the Caribbean: reef balls®, layered cakes and piles of locally obtained basaltic rock. As an indicator of performance, three fish assemblage parameters …