Therefore as it affirms Chaval (1995); ' ' The Men take off of its environment what it has necessidaade. They they proceed for the collection (what they assume that they recognize, between desenas or hundreds of species, those who are nutritional, those that are poisonous, those that fornrcem staple fibres etc.) for fish or the hunting (what implies a detailed inventrio of the fauna and terrestrial and aquatic flora, for the pastoreiro (that he is based on the domesticao of one or some animal species, in the knowledge of its alimentary necessity, its necessary displacements to use to advantage the areas of pastures at the moment more favoraverl and the use of the fire to increase or to regenerate the zones of percusso) and for agriculture. Each one of these operations implia the use of varioveis instruments; (Chaval-1995). Inside of the dominios of the river coc we find one areas1.155, 20 hectaresde manguezal that it forms the call Park of the Coc, considered one of the biggest ecological parks urban of Latin America, the same it was created in 1989 and expanded in 1993 being transformed into an Area of Preservao Permanente (APP) whose the purpose and to protect and to conserve the existing natural resources, of form to recoup and to keep the necessary balance to the preservation of biota terrestrial and aquatic. However, as cited in music food of the group tits; ' ' People do not only want food, people want food, Diversion and art people does not only want food, people wants exit For any part ' ' (part of the letter of music of the musical group of titans) A park of coc propitiates excellent conditions for diverse cultural and educative activities a time that the same becomes possible the direct contact of the population with the natural environment, either through on activities the recreation, ecological tourism and scientific research the same still are perfect for who are loving of the natural life and of the long ones walked where they find in a its preserved stretches bush of fens of rare beauty, situated in the heart of $fortaleza where some species of clams, crustaceans, fish, reptiles, birds and other mammals that they compose alimentary chains of the flail can be seen by the individuals that visit. .