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  4. Pesticide Concentrations in American Bullfrog (Lithobates catesbeianus) Tadpoles Collected from Ponds and Reservoirs near Mead, Nebraska

Pesticide Concentrations in American Bullfrog (Lithobates catesbeianus) Tadpoles Collected from Ponds and Reservoirs near Mead, Nebraska

Dates

Publication Date
Start Date
2021-11-07
End Date
2022-09-14

Citation

Hladik, M.L., Schoup, A., Ferraro, D., and VanWormer, E., 2023, Pesticide Concentrations in American Bullfrog (Lithobates catesbeianus) Tadpoles Collected from Ponds and Reservoirs near Mead, Nebraska: U.S. Geological Survey data release, https://doi.org/10.5066/P9NAY0GM.

Summary

To evaluate the potential uptake and accumulation of pesticides in amphibians, American bullfrog (Lithobates catesbeianus) tadpoles were collected from surface water sites (four ponds and one reservoir) in 2021 near Mead, Nebraska. Sites were located in the landscape surrounding the AltEn ethanol plant, a plant which had previously received pesticide treated (coated) seeds. Tadpoles were collected in November 2021, these tadpoles hatched in June 2021. The tadpole tissues were dried, homogenized, and then extracted using acetonitrile at 100 °C. Samples were analyzed for 166 pesticides and degradates using both gas and liquid chromatography-tandem mass spectrometry. Overall, 14 pesticides and degradates were detected in the tadpole tissue. [...]

Contacts

Point of Contact :
Michelle L Hladik
Process Contact :
Michelle L Hladik
Originator :
Michelle L Hladik, Abigail Schoup, Dennis Ferraro, Elizabeth VanWormer
Metadata Contact :
Michelle L Hladik
Publisher :
U.S. Geological Survey
Distributor :
U.S. Geological Survey - ScienceBase
SDC Data Owner :
California Water Science Center
USGS Mission Area :
Ecosystems

Attached Files

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AltEn tadpoles metadata.xml
“metadata”
Original FGDC Metadata
View 		27.41 KB application/fgdc+xml
compounds.txt
“compounds analyzed” 		16.7 KB text/plain
Field collection of tadpoles.jpg
“field collection of tadpoles” 		thumbnail 2 MB image/jpeg
tadpole_results.txt
“tadpole pesticide results” 		7.94 KB text/plain

Purpose

Data were collected to better understand the pesticide occurrence in tadpoles collected from ponds near an ethanol plant that previously received pesticide treated (coated) seeds.
field collection of tadpoles
field collection of tadpoles

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Communities

  • USGS California Water Science Center
  • USGS Data Release Products

Tags

Provenance

Original tadpole_results.txt file contained incorrect site names and was replaced with an updated version by Michelle L. Hladik on January 23, 2023.

Additional Information

Identifiers

Type Scheme Key
DOI https://www.sciencebase.gov/vocab/category/item/identifier doi:10.5066/P9NAY0GM

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