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Person

Samantha L Wolfe

Biologist

Email: slwolfe@usgs.gov
Office Phone: 608-783-6451
Fax: 608-783-6066

Location
2630 Fanta Reed Road
La Crosse , WI 54603
USA
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This study evaluated the use of medicated feeds to treat furunculosis infections caused by the bacterium Aeromonas salmonicida in lake herring (Coregonus artedi, Lesueur, 1818). The objectives of this two-phase study were to (1) determine if Coregonus artedi could be adequately and consistently infected with A. salmonicida by the methods of bath immersion or intraperitoneal (IP) injection, and (2) determine if the medicated feeds Oxytetracycline Dihydrate (Terramycin® 200 For Fish) and Florfenicol (Aquaflor®) could be used for the control of furunculosis caused by A. salmonicida. These datasets include water quality, mortality, feed weights and behavior, and qPCR data collected during both phases of the study.
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Bayluscide, the 2-aminoethanol salt of niclosamide (2′, 5-dichloro-4′-nitrosalicylanilide), is a pesticide that is used in conjunction with TFM (4-Nitro-3-(trifluoromethyl)phenol) to treat streams tributary to the Great Lakes that are infested with invasive parasitic sea lamprey (Petromyzon marinus). The application TFM with 0.5 to 2.0 percent (%) Bayluscide can significantly reduce the amount of TFM required to achieve effective control. The current formulation of Bayluscide used in combination TFM during stream treatments conducted the Great Lakes Fishery Commission binational Sea Lamprey Control Program is an emulsifiable concentrate (EC). The Bayluscide EC formulation is highly effective; however, it degrades...
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Controlling larval sea lamprey (Petromyzon marinus) in Great Lakes tributaries with of 4-Nitro-3-(trifluoromethyl)phenol (TFM, a lampricide) is essential to reducing the number of spawning-phase sea lamprey, an invasive species capable of collapsing Great Lakes fisheries. An important component of treating streams with lampricide is ensuring that the proper amount of TFM is applied, effectively controlling sea lamprey populations while minimizing effects on non-target species. In this study, the Trout, Ocqueoc and Sucker Rivers, were selected to complete replicated stream-side bioassays in May, July, and September 2021 to determine seasonal changes in sensitivity to TFM. Larvae were collected and bioassays were...
Categories: Data; Tags: Michigan, Great Lakes, biota
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Controlling larval sea lamprey (Petromyzon marinus) in Great Lakes tributaries with 4-nitro-3-(trifluoromethyl)phenol (TFM, a pesticide) stream treatments reduces the number of spawning-phase sea lamprey, an invasive species capable of collapsing Great Lakes fisheries. An important component of stream treatments is ensuring that the proper amount of TFM is applied that will effectively control sea lamprey populations and minimize the effects on non-target species. In this study, replicated streamside bioassays were conducted in May, July, and September at six sea lamprey infested rivers in Michigan to determine potential seasonal changes in sensitivity of lamprey to TFM. Larvae (≥ 60 mm) were collected with backpack...
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