Seahorse farming for ornamental purposes is the most recent activity at PRIMAR.

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PRIMAR is duly licensed by IDEMA-RN (Institute for Environmental and Sustainable Development) to commercially produce the longsnout seahorse Hippocampus reidi, a protected species of endangered status.

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The start of this project, was conducted by the team Marco Tulio de Lima e Carlos, M.Sc. in Aquatic Bioecology (UFRN); Felipe de Azevedo Silva Ribeiro, PhD in Aquaculture (FCAV-Unesp); and Marcos Antonio Freire da Costa Júnior, M.Sc. in Aquatic Bioecology (UFRN). The project is also supported by EAJ/UFRN (Agricultural College of Jundiaí), UFERSA (Federal University of the Semi-Arid Region, RN) and UNESP/CNPQ (São Paulo State University).