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  4. Pesticide Concentrations Measured in Zooplankton Samples Collected from the Sacramento River and Yolo Bypass, California, 2017-2020

Pesticide Concentrations Measured in Zooplankton Samples Collected from the Sacramento River and Yolo Bypass, California, 2017-2020

Dates

Publication Date
Start Date
2017-08-29
End Date
2020-03-10

Citation

Orlando, J.L, Hladik, M.L., Sanders, C.J., and Parsia, M.D., 2021, Pesticide Concentrations Measured in Zooplankton Samples Collected from the Sacramento River and Yolo Bypass, California, 2017-2020: U.S. Geological Survey data release, https://doi.org/10.5066/P93YBKCR.

Summary

Zooplankton samples were collected at a site in the Yolo Bypass in Northern California and at a comparison site on the Sacramento River below the city of Sacramento and analyzed for a large suite of current-use pesticides and degradates. Samples were collected biweekly in the summer/fall 2017 and 2018, and from May 2019−March 2020. Samples were collected by towing a 150-micron conical plankton net for 5 minutes by boat at each site. In the laboratory, zooplankton samples were filtered through a 63-micrometer sieve to separate the zooplankton and vegetation/detritus from the water. Large sticks, twigs, rocks, and leaves were rinsed with organic free water into the sieve and then discarded. The remaining mass in the sieve was transferred [...]

Contacts

Point of Contact :
James L Orlando, U.S. Geological Survey, SOUTHWEST REGION
Process Contact :
Michelle L Hladik, U.S. Geological Survey, SOUTHWEST REGION
Originator :
James L Orlando, Michelle L Hladik, Corey J Sanders, Matthew D De Parsia
Metadata Contact :
James L Orlando, U.S. Geological Survey, SOUTHWEST REGION
Publisher :
U.S. Geological Survey
Distributor :
U.S. Geological Survey - ScienceBase
SDC Data Owner :
California Water Science Center
USGS Mission Area :
Water Resources

Attached Files

Click on title to download individual files attached to this item.

Zooplankton_Pesticide_Metadata.xml
Original FGDC Metadata
View 		96.2 KB application/fgdc+xml
Limits_of_Detection.csv 1.58 KB text/csv
Matrix_Spikes.csv 5.03 KB text/csv
Zooplankton_Pesticide_Results.csv 34.36 KB text/csv

Purpose

Data were collected to document the concentrations of up to 86 pesticides in zooplankton collected from the Sacramento River and Yolo Bypass in Northern California.

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Communities

  • USGS California Water Science Center
  • USGS Data Release Products

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Additional Information

Identifiers

Type Scheme Key
DOI https://www.sciencebase.gov/vocab/category/item/identifier doi:10.5066/P93YBKCR

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