 They are administered by the Association of Machadinho Rubber Tappers.On 18 November 1991 the Aquariquara Forest Reserve was closed to settlement, deforestation, professional fishing, logging, mining and other activities that could compromise sustainable use other than the activities of small farmers, rubber tappers and fisherfolk.Aquariquara Extractive Reserve was created by state decree 7.106 of 4 September 1995 with an area of .