Abstract: A collapsible aquatic enclosure apparatus is described for use in capturing, isolating and removing contaminants and otherwise easily dispersed aquatic sediments and detritus in water bodies. The collapsible aquatic enclosure can also be used for removal and control of targeted aquatic fauna and flora. Once deployed, the collapsible enclosure creates an isolated volume of water above the target aquatic area. Internal plunger and pipe intake structure within the enclosure provide agitation to remove contaminants, sediments and detritus and targeted fauna and flora residues inside the collapsible apparatus. Methods for using the collapsible aquatic enclosure apparatus are also described.