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  3. Assessment of mercury sources in Alaskan lake food webs (ver 1.1, September 2023)

Assessment of mercury sources in Alaskan lake food webs (ver 1.1, September 2023)

Dates

Publication Date
Start Date
2007
End Date
2017
Revision
2023-09-12

Citation

Lepak, R.F., Bartz, K.K., Ogorek, J.M., Tate, M.T., DeWild, J.F., and Janssen, S.E., 2022, Assessment of mercury sources in Alaskan lake food webs (ver 1.1, September 2023): U.S. Geological Survey data release, https://doi.org/10.5066/P9UEP9C5.

Summary

This data release includes results of raw water, soil, seston, and fish tissue samples collected from 14 lakes within Lake Clark National Park and Katmai National Park between 2007 and 2017. Specifically, these data include total mercury and methylmercury concentrations in water, size-sieved seston, and particulate matter. Additionally, these data include soil and volcanic ash measurements from the surrounding watersheds. Finally, these data include energetic profiling of seston, lake trout (Salvelinus namaycush), and sockeye salmon (Oncorhynchus nerka) as well as mercury isotope measurements of the fishes. These data, except for Lake Clark data, were use in interpreting mercury mass balance flows and bioavailability to the food web [...]

Contacts

Point of Contact :
Sarah E Janssen
Originator :
Ryan F Lepak, Krista K Bartz, Jacob M Ogorek, Michael T Tate, John F DeWild, Sarah E Janssen
Metadata Contact :
Sarah E Janssen
Publisher :
U.S. Geological Survey
Distributor :
U.S. Geological Survey - ScienceBase
USGS Mission Area :
Water Resources
SDC Data Owner :
Upper Midwest Water Science Center

Attached Files

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

Hg_AK_lake_food_webs_1.1.xml
Original FGDC Metadata
View 		38.15 KB application/fgdc+xml
Mercury sources in Alaskan lake food webs 1.1 version history.txt 1.77 KB text/plain
Table1_Data_Dictionary_Alaska_Lakes_1.1.csv 19.22 KB text/csv
Table2_Water_Data_Alaska_Lakes.csv 4.05 KB text/csv
Table3_Seston_Data_Alaska_Lakes.csv 2.82 KB text/csv
Table4_Soil_Data_Alaska_Lakes.csv 3.6 KB text/csv
Table5_Fish_Data_Alaska_Lakes.csv 32.54 KB text/csv
Table6_Site_Information_Alaska.csv 1.9 KB text/csv
Table7_Water_quality_profile.csv 225.28 KB text/csv
AlaskaGlacialRunoff.JPG thumbnail 191.78 KB image/jpeg

Purpose

The data was collected in partnership with the National Park Service to provide a holistic view of the mercury-ecosystem burden in remote Alaskan Lakes that are undergoing dynamic shifts in food webs, lake conditions, and fish habits.
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Communities

  • USGS Data Release Products
  • Upper Midwest Water Science Center

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Provenance

Revision 1.1 by Sarah E Janssen on September 12, 2023. To review the changes that were made, see “Mercury sources in Alaskan lake food webs 1.1 version history.txt” in the attached files section.

Additional Information

Identifiers

Type Scheme Key
DOI https://www.sciencebase.gov/vocab/category/item/identifier doi:10.5066/P9UEP9C5

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