Field observations and captures of associate fauna between 1999 and the 2006, allowed to register in mangrove areas of the Caribbean Colombian, the presence of new species of sponges, coelenterates, , mollusks, crustaceans, insects, frogs, crocodiles, snakes, amphibians, turtles, birds and mammals, which confi rms the importance of this ecosystem in the balance of coastal areas and their productivity.