Macrobrachium rosenbergii used to migrate to mangrove ecosystem during spawning season. However, The presence of this prawn is related to the condition of the mangrove in general. To understand the prawn distribution in the Rawa Mekar Jaya mangrove, a research was conducted in July 2019. The prawns were captured using fishing rods (no 3) in 3 sampling points, 5 hours/ day, 7 days. The captured …