Filters: Tags: Zebra Mussels (X) > partyWithName: James A Luoma (X)
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Zebra mussels (Dreissena polymorpha) have continued their spread within inland lakes and rivers in North America despite diligent containment and decontamination efforts by natural resource agencies and other stakeholders. Identification of newly infested waterways with early detection surveillance programs allows for rapid response zebra mussel eradication treatments in some situations. Previous eradication treatments have been conducted during times of variable water temperatures and temperature has been shown to influence the efficacy of molluscicides. Natural resource managers would benefit from knowledge regarding the impacts of water temperature and exposure duration on toxicity of molluscicides to zebra mussels....
Categories: Data;
Tags: USGS Science Data Catalog (SDC),
United States,
biota,
environment,
molluscicide,
Alternatives to chemicals for controlling dreissenid mussels are desirable for environmental compatibility, but few alternatives exist. Previous studies have evaluated the use of electrified fields for stunning and/or killing planktonic life stages of dreissenid mussels, however, the available literature on the use of electrified fields to control adult dreissenid mussels is limited. We evaluated the effects of sinusoidal alternating current (AC) and square- wave pulse direct current (PDC) exposure on the survival of zebra mussels at water temperatures of 10, 15, and 22°C. Peak voltage gradients of ~ 17 and 30 Vp/cm in the AC and PDC exposures, respectively, were continuously applied for 24, 48, or 72 h. Peak power...
Categories: Data;
Types: Citation;
Tags: La Crosse, WI,
USGS Science Data Catalog (SDC),
Zebra Mussels,
control,
electricity,
Outdoor mesocosm test tanks used to determine the impacts of Zequanox exposure on nontarget animals.
Description of Work The U.S. Geological Survey (USGS) is continuing to develop and evaluate existing and new dreissenid mussel control tools for use in an Integrated Pest Management (IPM) program for dreissenid mussels. Information developed will help guide the management and control of dreissenid mussels in open water environments and it will determine how restoration efforts may be implemented after dreissenid mussel infestations occur. The USGS has conducted a rigorous evaluation of Zequanox for dreissenid mussel control including recent work to evaluate the non-target animal impacts to the critical Great Lakes fish species, lake trout and lake sturgeon. Additional work has been completed to evaluate the effects...
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...
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