Within the environmental impact and engineering study done on the islet El Palmar, where dredging is planned, it was assessed its flora and fauna, identifying three native plant species.
The first is an aquatic specie, very abundant around the island. It is a floating aquatic perennial plant with submersed leaves, the flowers are blue to purple, the second is within the islet and provide food for birds, and the last would have used ground space formed by the accumulation sediment and the presence of nutrients to colonize.
After three daily observations, it was determined that species Dendrocygma autumnalis is the most registered. It also highlights 48 species in 21 families and 10 orders, distributed in over 30 residents, 15 migratory boreal, two southern migratory and pelagic visitors. According to the International Union Conservation Nature, the registered species are the Least of the Concerns.
Furthermore, this study found that in this location there are no mammals or reptiles, but according to villagers and fishermen in the sector, land iguanas and snakes such as Bothrops Atrox and Boa Constrictor, can be found.
Among the fish species were also observed river catfish, old blue and chame.