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Update: Invasive Species

Reservoirs at risk

When last we reported on giant salvinia (in November 2008), this highly invasive aquatic fern was choking portions of Caddo Lake in East Texas. By October 2009, it was firmly established in 11 Texas reservoirs. The Texas Parks and Wildlife Department (TPWD) urges people to immediately clean all vegetation from boat trailers and boats when they come out of the water; giant salvinia can easily ride on boat trailers and travel to other lakes. And all those who enjoy our waters should learn to spot this free-floating plant. For more information, call the TPWD at (409) 384-9965 or go to