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Article Excerpt
In October 1997, E.I. Dupont de Nemours and Company, Inc. constructed a 22.9-ha artificial wetland at a plant near Victoria, Victoria County, Texas, as part of a new biotreatment process of effluent water prior to its discharge into the Guadalupe River. As recently as 2001, the wetland had 10.6 ha of open water, bordered by extensive growths of emergent vegetation that had been planted on shallow shelves bordering several deep-water zones and on shallow flats separating the deep-water zones. Vegetation consisted of 24 species of marsh and water plants. Most were obtained from an onsite nursery, but three species (pickerelweed, Pontederia cordata; softstem bulrush, Scirpus validus; and giant cutgrass, Zizaniopois miliacea) were imported from a Florida nursery (Duckworth-Cole, Inc. 2001).
Following completion of the planting of the aquatic vegetation, the Texas Parks and Wildlife Department (TPWD) seined a collection of fish from the Guadalupe River and released some of them into the wetland in late 1997 (Duckworth-Cole 1999). All were native species considered compatible with the...
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