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Chemical and Physical Controls on Mercury Source Signatures in Stream Fish from the Northeastern United States

Dates

Publication Date
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2019

Citation

Janssen, S.E., Riva-Murray, K., DeWild, J.F., Ogorek, J.M., Tate, M.T., Van Metre, P.C., Krabbenhoft, D.P., and Coles, J.F., 2019, Chemical and Physical Controls on Mercury Source Signatures in Stream Fish from the Northeastern United States: U.S. Geological Survey data release, https://doi.org/10.5066/P9FHN3RK.

Summary

The Northeast Stream Quality Assessment (NESQA) performed mercury (Hg) isotope analysis of prey fish, game fish, and sediments from 29 sites across an urban to forested land-use gradient. The data presented here includes the chemical analysis of Hg concentrations and isotopes, capture information for fish species, land use, and stream water quality variables. Using these parameters it was determined that the preservation of Hg isotope signatures, which are indicative of source (e.g. atmospheric deposition, industrial point discharge), were dependent on land use, proximity to point sources, and variables related urbanization (e.g. road density and impervious surface cover). Additional Information regarding the interpretation of this [...]

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Attached Files

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BronxR_PVanMetre.JPG thumbnail 3.48 MB
T1_Data_Dictionary_NESQA_Isotopes.csv 26.32 KB
T2_Watershed_geomorphic_and_atmospheric_deposition_characteristics_of_NESQA_sampling_sites.csv 5.72 KB
T3_Water_quality_NESQA_sites.csv 4.27 KB
T4_Mercury_concentrations_isotope_compositions_and_species_information.csv 10.31 KB
T5_Mercury_concentrations_isotope_compositions_for_sediments.csv 2.57 KB
Chemical and Physical Controls on Mercury Source Signatures in Stream Fish from the Northeastern United States Data Release.xml
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19.29 KB

Purpose

Data were obtained to test two major hypotheses: 1) fish tissue conserves the isotopic signature of the source of Hg entering the stream and 2) that these isotope signatures are controlled by external variables (e.g. land use). This information allows for the potential to attribute shifts in source management to changes in fish Hg burdens, which is a vital tool for resource managers tasked with mitigating fish consumption advisories.
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  • USGS Data Release Products
  • Upper Midwest Water Science Center

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DOI https://www.sciencebase.gov/vocab/category/item/identifier doi:10.5066/P9FHN3RK

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