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Folders: ROOT > ScienceBase Catalog > Upper Midwest Environmental Sciences Center (UMESC) > Upper Midwest Environmental Sciences Center Data > Invasive Species > Dreissenid Mussels (zebra & quagga mussels) ( Show direct descendants )

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Data were collected during experiments to determine the effects of water chemistry on carbon dioxide toxicity to zebra mussels (Dreissena polymorpha). Water chemistry parameters were collected for the water used in the study. Data were collected to model the relationship of carbon dioxide and pH in various water chemistries. Measurements were made to describe the animals used in the study.
Zequanox® is a commercial formulation of the killed bacterium, Pseudomonas fluorescens (strain CL145A) that has USEPA approval for use in open water to kill dreissenid mussels. Previous nontarget studies demonstrated the safety and selectivity of the product, but the database is limited for macroinvertebrate taxa and exposure conditions. We evaluated the safety of the product to two high value macroinvertebrates, the amphipod Gammarus lacustris lacutris, and nymphs of the burrowing mayfly, Hexagenia spp., at the maximum approved concentration (100 mg/L A.I.) and exposure duration (8 h). Survival of animals was measured at the end of 8 h exposure and at 24 h post-exposure and 96 h post-exposure. Additionally, histological...
We applied Zequanox using a custom-engineered, boat mounted application system to replicated 0.30 Hectare plots within a small inland lake. The objectives of these applications were to determine if uncontained, open-water Zequanox applications could effectively control zebra mussel populations and protect native unionid mussel populations within zebra mussel infested systems. The datasets included are as follows: Exposure Water Chemistry Hardness and Alkalinity Native Mussel Sonde Water Chemistry Zebra Mussel Density Zebra Mussel Length Zebra Mussel Mortality Zequanox Concentration ShapeFiles: PLOTS, UNIONID, ZEQUANOX CONCENTRATION, ZM_DENSITY, ZM_MORTALITY
Two SAS code files were used to analyze data for this study and they included: 1) code to compare the condition of unique cohorts of zebra mussel test animals at 3 time points (pre-exposure, exposure termination, and post-exposure termination), and 2) code to predict the lethal concentration of test articles required to cause 50 and 99% mortality (LC50 and LC99, respectively) for each toxicant, exposure duration, and temperature combination.
The effects of temperature and concentration on the viscosity, settling, and distribution of Zequanox®, a dead-cell spray-dried powder formulation of Pseudomonas fluorescens (strain CL145A) used for controlling invasive dreissenid mussels (zebra mussel, Dreissena polymorpha, and quagga mussel, Dreissena bugensis), was investigated. Laboratory tests examined viscosity, delivery and sink rates, mixing, settling, and diffusion characteristics at varying temperatures and concentrations to determine optimal target viscosity for subsurface injection of Zequanox. Furthermore, this target viscosity was used to predict the optimal concentrations of Zequanox at three different environmental temperatures that were later injected...
The goal of the study in which the data were collected to determine the non-target effects of the molluscicide Zequanox on the survival and reproductive success of Fathead minnows in simulated open-water applications. The specific objectives were to evaluate effects of 8-h exposure to 50 mg/L and 100 mg/L AI Zequanox on: 1) survival of adult Fathead minnows, 2) egg deposition, 3) hatchability of eggs, and 4) survival and growth of newly hatched fry.
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Zebra mussels (Dreissena polymorpha Pallas 1771) are a tenacious aquatic invasive species in the United States and new infestations can rapidly expand into dense colonies. Zebra mussels were first reported in Marion Lake (Dakota County, Minnesota) in September 2017 and surveys indicated the infestation was likely isolated near the public boat access. A 2.4-hectare area, containing the known zebra mussel infestation, was enclosed and treated for nine days with EarthTec QZ®, a copper-based molluscicide, in an attempt to eradicate the zebra mussels. We conducted an on-site bioassay to confirm treatment efficacy. The bioassay was conducted in mobile assay trailer that received a continuous flow of treated lake water...
The environmental fate, persistence, and point-source discharge of traditional molluscicidal compounds led to the development of an alternative biomolluscicide, Zequanox. Previous studies evaluated the efficacy and non-target animal safety of Zequanox in laboratory, mesocosm, and field enclosure studies. One study indicated sensitivity of salmonid species and lake sturgeon (Acipenser fulvescens Rafinesque 1817) following exposure to Zequanox, however, the exposures were not conducted in a manner consistent with the product label. This laboratory study evaluated sublethal and lethal impacts of Zequanox on lake sturgeon and lake trout (Salvelinus namaycush Walbaum in Artedi, 1792) following exposures that were conducted...
The goal of this study was to complete a comprehensive evaluation of a low-dose copper treatment for zebra mussel (Dreissena polymorpha Pallas 1771) suppression. The treatment objective was to maintain an average copper concentration of 60 µg/L in waters above the thermocline for 10 consecutive days. The study was conducted in Lake Minnetonka (Hennepin County, Minnesota) and the copper treatment was applied to St. Albans Bay (66.3-ha). Robinson Bay (37.2-ha) was used as an untreated control reference site. Five locations were identified as sampling sites throughout each bay and marked with a buoy. Test animals were held, and samples were collected in the vicinity of these sampling buoys before, during, and after...
Eleven SAS code files were used to analyze data for the study entitled: Assessment of uncontained Zequanox applications for zebra mussel control in a Midwestern lake. The SAS program files included: code to summarize the water hardness and alkalinity of water at the time of treatments code to summarize and analyze water chemistry parameters during the exposure period code to summarize and analyze water chemistry parameters during the post-exposure period code to summarize and analyze the density of live zebra mussels within 0.25-m2 quadrats collected from each treatment plot zone at three time points (pre-exposure, 30-days post-exposure, and 1-year post exposure. code to summarize and analyze the length of live...
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Multibeam and sidescan sonar were collected for a total of 15 sites in the North Arm, Maxwell Bay, and St. Albans Bay of Lake Minnetonka, Minnesota, to determine whether hydroacoustics could be used in turbid rivers and lakes as a method of rapid detection for invasive zebra mussel (Dreissena polymorpha) infestations. Hydroacoustic data were collected in June, August, and the end of September, 2022 at all 15 sites. This dataset is composed of bathymetry in the form of digital elevation models and 3D point cloud (in the form of XYZ text file), sidescan sonar image mosaics, and underwater video still images for assessing the detection of Dreissenids using hydroacoustics and underwater video for habitat.
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We evaluated the efficacy of carbon dioxide (CO2) for preventing settlement of the biofouling quagga mussel (Dreissena bugensis) in raw water systems. Trials were conducted in a mobile laboratory located at the US Bureau of Reclamation, Davis Dam Hydropower Facility, and supplied with raw water from the Colorado River. Incoming water was split between five chambers where CO2 was dissolved into the water at five concentrations. Chamber outflows were mixed with raw water which was infested with quagga larvae (veligers) and then delivered to test tanks containing settlement plates. We conducted two 18-d trials; trial 1 tested continuous infusion with (target concentrations) 30, 45, 60, 75, and 100 mg/L dCO2. Trial...
map background search result map search result map Bioassay Verification of a Zebra Mussel (Dreissena polymorpha) Eradication Treatment: Data Plots - Assessment of uncontained Zequanox applications in a Midwestern lake data Effects of water chemistry on carbon dioxide toxicity to zebra mussels (Dreissena polymorpha) Hydroacoustic data for detection of Dreissenid mussels and their habitat in Lake Minnetonka, Minnesota, 2022 Efficacy of carbon dioxide for preventing quagga veliger settlement in a raw water system on the Colorado River, AZ Effects of water chemistry on carbon dioxide toxicity to zebra mussels (Dreissena polymorpha) Efficacy of carbon dioxide for preventing quagga veliger settlement in a raw water system on the Colorado River, AZ Plots - Assessment of uncontained Zequanox applications in a Midwestern lake data Bioassay Verification of a Zebra Mussel (Dreissena polymorpha) Eradication Treatment: Data Hydroacoustic data for detection of Dreissenid mussels and their habitat in Lake Minnetonka, Minnesota, 2022