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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...
Categories: Data;
Tags: 3-trifluoromethyl-4-nitrophenol,
Chippewa River, Michigan,
Ford River, Michigan,
Lampricide,
Sea Lamprey Larvae, All tags...
Sturgeon River, Michigan,
TFM,
USGS Science Data Catalog (SDC),
biota,
niclosamide, Fewer tags
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Description of Work This work began by assembling fish toxicant data into a common database and examining the database for trends in toxicant data. The trends found in the toxicant database were linked to physiochemical properties of the individual toxicants. Combining the toxicant trends with the physiochemical properties may allow for the prediction of toxicity and the identification of chemicals with selectivity for the Asian carp. Identifying a selective toxicant may provide control of Asian carps while minimizing effects on other non-target aquatic species. When Asian carp specific toxicants are identified from the initial screen within the database these toxicants are then further screened in toxicity assays...
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This was a joint project between: Upper Midwest Environmental Sciences Center, U.S. Geological Survey, La Crosse, WI 54603 La Crosse Fish Health Center, U.S. Fish and Wildlife Service, Onalaska, WI 54650 This repository contains the raw data and R codes used in the metabolomics analysis for the manuscript which used silver and bighead carp fry cells exposed to thiram. Species indclude in this manuscript Silver Carp (Hypophthalmichthys molitrix) Bighead Carp (Hypophthalmichthys nobilis) The raw data is in: BHC thiram data.csv SVC thiram data labels.csv The code used in the ordination analysis is in: figure_1_knit_code.Rmd The code used in the principle component analysis is in: figure_2_knit_code.Rmd The...
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Many fishes native to the Gila River Basin, Arizona, are on the decline with about 70 percent of the 17 fish species Federally listed as endangered or threatened. The decline has been partly attributed to the introduction of nonnative fishes that are of recreational interest such as catfish and smallmouth bass. Effective management practices are needed to control the nuisance nonnative fishes in Southwestern United States watersheds to prevent further decline of the native species and facilitate their restoration. An effective approach is the use of chemical toxicants to control the nuisance species. One chemical mixture of interest, Supaverm®, a combination of mebendazole and closantel, has been reported to show...
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