Gary O. Dick

Engineer Research and Development Center - U.S. Army | ERDC US Army · EL

Macroinvertebrate community structure and assemblages associated with the planted, native submerged aquatic vegetation (SAV) species Heteranthera dubia (Jacq.) MacMillan and Potamogeton nodosus Poiret were examined in a series of constructed urban floodway wetlands, the Dallas Floodway Extension Lower Chain of Wetlands, Dallas, TX, USA. Macroinvert...

Holbrook DL, Schad AN, Dick GO, Dodd LL, Kennedy JH. 2020. Invasive bivalve establishment as a secondary effect of eradication-focused nuisance aquatic plant management. Lake Reserv Manage. XX:XX–XX. We evaluated changes in aquatic vegetation cover and community structure in hydrilla (Hydrilla verticillata)-infested constructed experimental ponds a...

Schad AN, Dick GO. Aquatic vegetation community structure response to hydrilla management with triploid grass carp, herbicide, and native vegetation planting. Lake Reserve Manage. 34:417–425. To aid conservation managers conducting hydrilla (Hydrilla verticillata (L.f.) Royle) management, we evaluated changes in aquatic vegetation community structu...

The objectives of this study were to evaluate the allelopathic effects of Chinese privet (Ligustrum sinense Lour.) extract on native seeds and cuttings and to assess the survivability of native plants in a flooded riparian corridor. Field sites occupied the Trinity River floodplain in southeast Dallas County, Texas. Eight native species were evalua...

Dick GO, Smith DH, Schad AN, Owens CS. 2016. Native aquatic vegetation establishment in the presence of triploid grass carp. Lake Reserv Manage. 32: 222--233. Balancing techniques used to control nuisance aquatic plants while establishing or preserving beneficial vegetation can be complex. Survival and growth of 10 US native aquatic plant species w...

Secondary production and seasonal development of the damselfly Enallagmacivile Hagen, 1861 were determined as part of an epiphytic macroinvertebrate study in the Dallas Floodway Extension Trinity River Project Lower Chain of Wetlands, Dallas, TX, USA. These wetlands were constructed to mitigate flooding of the Trinity River, but also provided quali...

Background/Question/Methods Lady Bird Lake and Lake Austin are riverine reservoirs on the Colorado River in Travis County, Texas. Aquatic plants provide habitat, sediment entrainment and other benefits to these ecosystems, but native macrophytes were limited in both reservoirs since their initial impoundments. Macrophyte communities were dominate...

This technical note describes development of a decision support tool that uses multiattribute utility analysis to aid resource managers in selection of suitable sites for establishing native aquatic vegetation in large, multi-purpose reservoirs.

Plant biomass data are critical to many aquatic plant assessment efforts, particularly those involving adaptive management of aquatic plant problems, integrated plant management approaches, or ecosystem restoration. Unfortunately, current methods for aquatic plant biomass sampling have depended upon expensive, labor-intensive SCUBA techniques or ut...

Weighted hydrilla fragments were introduced to contain-ers of wild celery (Vallisneria americana Michx.) grown at four water depths (18, 46, 91, 122 cm) in a research pond at the Lewisville Aquatic Ecosystem Research Facility, Lewisville, Texas. Established wild celery effectively reduced invasion by hydrilla fragments, while hydrilla fragments rea...

BACKGROUND: Aquatic system restoration often involves establishment or reestablishment of native aquatic plant communities. The role of plants in aquatic systems is significant: in addition to providing valuable fish and wildlife habitat (Dibble et al. 1996), aquatic plants can improve water clarity and quality (James and Barko 1990), reduce rates...

Growth of giant salvinia ( Salvinia molesta Mitchell) under different pH regimes was examined at the Lewisville Aquatic Ecosystem Research Facility (LAERF) in Lewisville, Texas. Gi- ant salvinia grew to completely cover a research pond over a 15-week period when pH was less than 7.5. Growth was re- duced in a second pond maintained at a higher pH r...

This issue of the APCRP Bulletin focuses on Aquatic Vegetation Restoration in Drakes Creek, Tennessee. The primary purpose of the Drakes Creek Section 1135 Restoration Project was to improve aquatic wildlife habitat in a floodwater conveyance. Drakes Creek is a major tributary embayment of the Old Hickory Reservoir on the Cumberland River, its mout...

This technical note describes studies of environmental conditions and habitat quality of replicated pond ecosystems dominated by populations of exotic plants or mixed communities of native aquatic plants. Study ponds were similar in depth, size, and shape, as well as in (initial) water and sediment composition. One component of these studies includ...

Aquatic plants improve water clarity and quality (James and Barko 1990) and reduce rates of shoreline erosion and sediment resuspension (James and Barko 1995). Further, aquatic plants provide valuable fish and wildlife habitat (Dibble et al. 1996) and serve as a food source for waterfowl and aquatic mammals. Native aquatic plants also help prevent...

Arcadia Lake is located within the metropolitan area of Oklahoma City and Edmund, in Oklahoma County, Oklahoma, about 2.4 km (1.5 miles) southwest of Arcadia, Oklahoma (Figure 1). Construction of the earth-filled dam was authorized by the Flood Control Act of 1970 and approved for construction by the Secretary of the Army for the purposes of flood...

The overall objective of the project was to begin restoration of spawning and nursery fishery habitat for the sunfish family (largemouth bass, crappie, and bluegill) lost from flood control operations (seasonal drawdowns) in El Dorado Lake, Kansas. When initially impounded, flooded terrestrial structure provided good habitat for the sunfish fishery...

Man-made aquatic systems such as reservoirs are particu- larly vulnerable to infestations of weedy species because early in their existence they typically lack aquatic vegetation of any kind. Establishment of native aquatic plants in such systems could be an important deterrent to the spread of exotic weeds. This article describes a new Aquatic Pla...

We quantified architectural characteristics of seven aquatic macrophytes by measuring spatial complexity and shading properties. The plants were: Egeria densa, Hydrilla verticillata, Myriophyllum spicatum Potamogeton nodosus, Potamogeton pectinatus, Vallisineria americana, and Zosterella dubia). Two replicates of each plant were cultured in aquaria...

Kirk Pond is a 29-ha man-made pond adjacent to Fern Ridge Reservoir, OR. It is the central feature of Kirk Park, a multiple day-use park at the project. Kirk Pond supports a naturally reproducing warmwater fishery and a put- and-take trout fishery. For many years, the pond has been impacted by dense growths of Eurasian watermilfoil (Myriophyllum sp...

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