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Metal-mixtures experimental stream study, part 2 (2014): Cd, Cu, and Zn exposures: aquatic, biofilm, tissue and sediment chemistry and larval aquatic insect counts

Metadata Updated: October 29, 2023

This dataset is from the second of four experiments which test the toxicity of several metals with aquatic insect communities that were colonized in the field and then transferred and tested in experimental streams. Here we report original data from testing the toxicity of cadmium (Cd), zinc (Zn), and copper (Cu) singly and in mixtures, to natural aquatic insect communities. Thus, the exposures reproduced those in experiment 1, with the addition of a third metal, Cu Trays of cleaned gravel were placed in a stream (the Cache La Poudre River, Colorado) and allowed to colonize for about 40 days before being translocated to Aquatic Experimental Stream Laboratory (AXL) which was located at the USGS Fort Collins Science Center. There the insects were exposed for 30 days to metal mixtures in ratios and concentrations similar to those occurring in ambient conditions. Emerging adult insects were captured and collected daily throughout the experiment, while larvae and metal residues in periphyton, sediment, and Brachycentrus caddisflies (a common, large-bodied, robust taxa that could survive high metals accumulations) were collected on the final day of the experiment.

Access & Use Information

Public: This dataset is intended for public access and use. License: No license information was provided. If this work was prepared by an officer or employee of the United States government as part of that person's official duties it is considered a U.S. Government Work.

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Metadata Created Date June 1, 2023
Metadata Updated Date October 29, 2023

Metadata Source

Harvested from DOI EDI

Additional Metadata

Resource Type Dataset
Metadata Created Date June 1, 2023
Metadata Updated Date October 29, 2023
Publisher U.S. Geological Survey
Identifier USGS:5d3f88e9e4b01d82ce8d96ae
Data Last Modified 20200820
Category geospatial
Public Access Level public
Bureau Code 010:12
Metadata Context
Metadata Catalog ID
Schema Version
Catalog Describedby
Harvest Object Id f9bb7cdc-6456-4960-b831-706cd0ab694d
Harvest Source Id 52bfcc16-6e15-478f-809a-b1bc76f1aeda
Harvest Source Title DOI EDI
Metadata Type geospatial
Old Spatial -105.7196,40.703,-105.7193,40.703913
Publisher Hierarchy White House > U.S. Department of the Interior > U.S. Geological Survey
Source Datajson Identifier True
Source Hash 1f91e73eedd323a55ce2fa69ce365350b728b440f44af5f4fa9cda16f3bd03e6
Source Schema Version 1.1
Spatial {"type": "Polygon", "coordinates": -105.7196, 40.703, -105.7196, 40.703913, -105.7193, 40.703913, -105.7193, 40.703, -105.7196, 40.703}

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