J. J. is a quantitative ecologist with applied interests in environmental impact and management, often acting as an expert consultant to regional and federal government agencies. JJ’s research focuses especially on the ecology of benthic rocky reef assemblages and fishes associated with coral reefs. He completed his PhD at the University of Sydney, Australia, and has lectured in experimental design, ecology and biostatistics at the Universidad Simon Bolivar (Caracas, Venezuela). He is currently Assistant Professor in the Department of Marine Sciences at the University of Puerto Rico (UPR) and Executive Director of the Caribbean Coral Reef Institute (CCRI). Since 2010, together with Dr Edlin Guerra-Castro, he has organised and presented a suite of PRIMER and PERMANOVA+ workshops in Spanish for hundreds of participants from Central and South America.