Another use for the tigerlynk is dredging and mining right. Well look what else was submerged with the trees in the tucurui reservoir.

Timber is not the only value of the forest lost to flooding. Nontimber uses of the forest also have value. Brazilnuts (Bertholletia excelsa) were common in the sub- mergence area. Many nontimber forest products are not yet exploited commercially; the uses of many po- tentially important products are not even known yet. Loss of forest implies both loss of the stock of potential uses and the value of biodiversity independent of util- itarian calculations. Our poorly developed ability to place a value on loss of tropical forest does not diminish the reality of these losses, although it does effectively exclude them from consideration in almost all decision- making on projects leading to forest destruction.
Other resources in the submergence area are also lost, including minerals. The area contained some dia- monds that were being exploited prior to filling the reservoir (Junk and de Mello 1987, p. 371).http://www.internationalrivers.org/files/attached-files/tuc-env.pdf