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Lampricide concentrations in larval sea lamprey (Petromyzon marinus) carcasses collected following two TFM and two TFM/Bayluscide treatments were determined to support risk assessments for non-target organisms that may consume lampricide-laden carcasses. Carcasses were removed from the treated streams either immediately after completion of the treatment or 2-days post mortem. The estimated average TFM concentration in the fresh carcasses (n = 80) collected from the rivers was 4.58 µg·g-1 (SEM =1.06 µg·g-1). The average concentration of niclosamide (the active ingredient in Bayluscide) in the fresh carcasses from the two rivers treated with TFM and Bayluscide was 0.492 µg·g-1 (SEM = 0.210 µg·g-1). The mean 2-day...
Six R code files were used to analyze data for the study entitled: Distribution of Niclosamide Following Granular Bayer Applications in Lentic Environments. The R program files included: code to summarize the distribution of niclosamide in the water column outside of the studied treatment plot. code to summarize the distribution of niclosamide in the water column inside of the studied treatment plot. code to summarize the distribution of niclosamide in the sediment inside of the studied treatment plot code to summarize the depth, temperature and pH of the water column inside of the studied treatment plot code to summarize the temperature of the sediment inside of the studied treatment plot pre and post granular...
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The granular formulation of Bayluscide [Bayluscide 3.2% Granular Sea Lamprey Larvicide, granular Bayluscide (gB)] is applied in lentic and lotic systems to survey (assessment) and kill (treatment) larval sea lampreys (Petromyzon marinus) in the Great Lakes basin. Granules are spread on the water surface, settle to the sediment surface, and dissolve. The potential risk of niclosamide exposure [5 Chloro-N-(2-chloro-4-nitrophenyl)-2-hydroxybenzamide], the active ingredient of gB, to non-target organisms located downstream of survey plots, is a concern of partner agencies (State-level Natural Resource Departments, U.S. Fish and Wildlife Service’s Ecological Service, Fisheries and Oceans Canada Species at Risk Branch)....
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Temporal and spatial distribution of niclosamide in the water column and sediment were evaluated after the application of granular Bayluscide in six lentic Sea Lamprey (Petromyzon marinus) larval assessment plots. Water and sediment were collected 0.25, 1, 3, 5, and 7 hours after application and were analyzed for niclosamide, the active ingredient in granular Bayluscide. Water samples were collected from five heights in the water column (1 cm, 13 cm, 26 cm, ½ water column, and water surface) at five locations inside and four locations 10 m outside of each assessment plot. Sediment was collected from 18 locations within each plot. Niclosamide water concentrations inside and outside of the plots did not vary by depth...


    map background search result map search result map Distribution of Niclosamide Following Granular Bayer Applications in Lentic Environments data Data Release for Distribution of Niclosamide Following Granular Bayluscide Applications in Lotic Systems Data Release for Distribution of Niclosamide Following Granular Bayluscide Applications in Lotic Systems Distribution of Niclosamide Following Granular Bayer Applications in Lentic Environments data