USGS Zebra Mussel Monitoring Program for north Texas

Churchill, Christopher J.; Baldys, Stanley

doi:10.3133/fs20123077

Cited by 6 publications

(6 citation statements)

References 9 publications

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“…8 Concerns regarding cyanobacteria increased when invasive aquatic Zebra mussels, Dreissena polymorpha, were detected in reservoirs in north Texas. 9 The presence of Zebra mussels can lead to the possible increase in concentrations of toxigenic species; however, the mutualistic relation between cyanobacteria and Zebra mussels is a topic of ongoing research. 10,11 Cyanobacteria can release toxins at irregular times and under a myriad of conditions, making toxin concentrations difficult to predict.…”

Section: Introductionmentioning

confidence: 99%

“…10,11 Cyanobacteria can release toxins at irregular times and under a myriad of conditions, making toxin concentrations difficult to predict. 9 Although the need for information on timing, extent, and constituency of algae and cyanobacteria is critical, monitoring for algae and cyanobacteria is challenging. A common approach is to rely on data obtained from periodically collected in-situ water samples to characterize large water bodies, and in-situ detections measured during an algae and cyanobacteria event.…”

Section: Introductionmentioning

confidence: 99%

“…In Texas, water-quality monitoring for cyanobacteria by the USGS began in 2016 in cooperation with Dallas-Fort Worth regional water resource authorities with the collection of baseline phytoplankton, chlorophyll-a, taste-and-odor compounds, and other toxin data from reservoirs used for drinking water 8 . Concerns regarding cyanobacteria increased when invasive aquatic Zebra mussels, Dreissena polymorpha , were detected in reservoirs in north Texas 9 . The presence of Zebra mussels can lead to the possible increase in concentrations of toxigenic species; however, the mutualistic relation between cyanobacteria and Zebra mussels is a topic of ongoing research 10 , 11 …”

Section: Introductionmentioning

confidence: 99%

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Near real-time satellite detection and monitoring of aquatic algae and cyanobacteria: how a combination of chlorophyll-a indices and water-quality sampling was applied to north Texas reservoirs

Stengel,

Trevino,

King

et al. 2023

J. Appl. Rem. Sens.

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.Aquatic algae and cyanobacteria can impair water-quality and pose risks to human and animal health. Several metrics of in-situ water-quality, including chlorophyll-a, phycocyanin, turbidity, Secchi depth, phytoplankton taxonomy, and hyperspectral reflectance, were collected in coordination with Sentinel-2 satellite overpasses to ascertain water-quality conditions and calibrate satellite detection and estimation of chlorophyll-a concentration. The performance of multiple satellite chlorophyll-a detection indices was evaluated by comparing satellite imagery to field observations of chlorophyll-a concentrations. Seventeen chlorophyll-a spectral indices were implemented using the ACOLITE atmosphere correction; the top performing indices were selected for further evaluation using the Sen2Cor and MAIN atmosphere corrections. The Moses three-band spectral index delivered the strongest linear agreement with field measurements of chlorophyll-a concentration across all reservoir sampling sites (R2 = 0.70). Compared to open-water sites, the Moses three-band spectral index delivered better linear agreement with chlorophyll-a field measurements at inlet sites where there was a greater abundance of near surface aquatic chlorophyll-a concentrations, and the overall chlorophyll-a hyperspectral reflectance signal was stronger. Chlorophyll-a concentration estimates were implemented in a cloud-computation remote sensing platform designed for regional scale remote sensing analysis to map spatiotemporal patterns of aquatic chlorophyll-a across 10 study reservoirs located primarily in north Texas.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Near real-time satellite detection and monitoring of aquatic algae and cyanobacteria: how a combination of chlorophyll-a indices and water-quality sampling was applied to north Texas reservoirs

Stengel,

Trevino,

King

et al. 2023

J. Appl. Rem. Sens.

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“…Drought conditions during 2011-14 reduced water levels in these regional reservoirs, which adversely affected potablewater supplies. Regional water supplies were further reduced because of the presence of zebra mussels in Lake Texoma in the Red River Basin (Churchill and Baldys, 2012). The presence of zebra mussels precluded interbasin transfer of water from Lake Texoma to Dallas-Fort Worth.…”

Section: Introductionmentioning

confidence: 99%

Compounds of emerging concern detected in water samples from potable water and wastewater treatment plants and detected in water and bed-sediment samples from sites on the Trinity River, Dallas, Texas, 2009–13

Churchill¹,

Baldys²,

Gunn³

et al. 2020

Scientific Investigations Report

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Compounds of Emerging Concern Detected in Water and Sediment Samples, Trinity River, Dallas, Texas detected in finished water or in treated-effluent water samples, respectively, indicating that these compounds were removed or degraded to compounds that were not analyzed. Some CECs, however, are resistant to degradation and were detected in untreated and treated water at PWTPs and at WWTPs. The three CECs detected at PWTPs in raw-water and finishedwater samples were tris(dichloroisopropyl)phosphate, benzophenone, and methyl salicylate. At WWTPs, 29 CECs were detected, including carbamazepine, sulfamethoxazole, 4-androstene-3,17-dione, 3-beta-coprostanol, acetylhexamethyl-tetrahydronaphthalene (AHTN), hexahydrohexamethyl-cyclopenta-benzopyran (HHCB), 1,4-dichlorobenzene, tribromomethane, benzophenone, and tris(dichloroisopropyl)phosphate, in untreated and treated water, indicating that treatment processes likely did not remove or degrade these compounds. Of the 23 CECs detected in stream-water samples collected at 5 sites on the Trinity River in or near Dallas, 10 CECs (carbamazepine, sulfamethoxazole, caffeine, 3-beta-coprostanol, cholesterol, HHCB, benzophenone, triethyl citrate, tributyl phosphate, and tris(dichloroisopropyl) phosphate) were detected at all 5 sites. The 10 CECs detected in water samples collected at all 5 sites on the Trinity River were also detected in treated-effluent water at WWTPs. Eleven of the 57 targeted CECs were detected in bedsediment samples collected at study sites on the Trinity River. Of these 11 CECs, only 2 (beta-sitosterol and cholesterol) were detected in bed-sediment samples at all 5 sites on the Trinity River. Nine of these 11 CECs were not detected in any water-column sample, likely because of the strong hydrophobic characteristics of these compounds. Results from water treatment plants indicate that the water treatment process is less effective for removing or degrading compounds that are engineered to be resistant to degradation. These results also indicate the presence of CECs and EDCs at locations upstream from PWTPs in Dallas. Results from Trinity River main-stem sites indicate that some compounds are naturally attenuated during transport, but a few are persistent throughout the study reach. Many CECs and EDCs are hydrophobic and were only detected in bed sediment, indicating multiple pathways through which CECs can persist in the environment. In general, concentrations of CECs in the Dallas-Fort Worth metropolitan area were similar to those found in metropolitan areas nationwide.

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“…By documenting aquatic species that are nonindigenous to the United States, citizen volunteers are helping to populate a central repository of spatially referenced and verified occurrences of such species through the project search portal on the myScience Web page. Databases specific to different invasive aquatic species are being populated, such as the sighting database for the highly invasive Dreissena polymorpha (zebra mussel), which has spread to several lakes in north Texas since the first confirmed sighting of zebra mussels in the State in 2009 (Churchill and Baldys, 2012).…”

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confidence: 99%

myScience—Engaging the public in U.S. Geological Survey science

Holl¹

2015

Fact Sheet

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to address the need for increasing public awareness and participation in existing USGS citizen science projects. The myScience application contains data for 20 projects available for public participation representing all USGS mission areas. A visitor to the USGS education Web site (http://education.usgs.gov/) can click on the Citizen Science link to search for citizen science projects by topic or location, select a project of interest, and click "Get Involved." Within the USGS, an internal version of myScience serves to build a community of practice and knowledge sharing among scientists who lead or would like to lead a crowdsourcing project.

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USGS Zebra Mussel Monitoring Program for north Texas

Cited by 6 publications

References 9 publications

Near real-time satellite detection and monitoring of aquatic algae and cyanobacteria: how a combination of chlorophyll-a indices and water-quality sampling was applied to north Texas reservoirs

Near real-time satellite detection and monitoring of aquatic algae and cyanobacteria: how a combination of chlorophyll-a indices and water-quality sampling was applied to north Texas reservoirs

Compounds of emerging concern detected in water samples from potable water and wastewater treatment plants and detected in water and bed-sediment samples from sites on the Trinity River, Dallas, Texas, 2009–13

myScience—Engaging the public in U.S. Geological Survey science

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