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  3. Mercury and Methylmercury Stable Isotope Measurements in Giant Petrels

Mercury and Methylmercury Stable Isotope Measurements in Giant Petrels

Dates

Publication Date
Time Period
2014

Citation

Poulin, B.A., Janssen, S.E., and Rosera, T.J., 2021, Mercury and Methylmercury Stable Isotope Measurements in Giant Petrels: U.S. Geological Survey data release, https://doi.org/10.5066/P9UEG9Q1.

Summary

Methylmercury (MeHg) and total mercury (HgT) stable isotope measurements were made by the USGS Mercury Research Lab (MRL) in different organs on the Giant Petrels (Macronectes spp.) to examine internal mercury cycling in these seabirds. These data were collected as a compliment to x-ray spectroscopy measurements made by the University of Grenoble, France. The tissues and feathers of the southern giant petrels exhibit large variability in mercury-202 isotope values (δ202HgT), which are typically used to ascertain Hg sources in the environment. These values follow a pattern across all individuals based on tissue type: feathers (δ202HgT = 2.74 ± 0.16‰, n =5, mean ± standard deviation) > brain (δ202HgT = 1.09 ± 0.77‰, n = 3) > liver (δ202HgT [...]

Contacts

Point of Contact :
Sarah E Janssen, Upper Midwest Water Science Center
Originator :
Brett Poulin, Sarah E Janssen, Tylor J Rosera
Metadata Contact :
Sarah E Janssen, Upper Midwest Water Science Center
Publisher :
U.S. Geological Survey
Distributor :
U.S. Geological Survey - ScienceBase
SDC Data Owner :
Upper Midwest Water Science Center
USGS Mission Area :
Ecosystems

Attached Files

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Mercury and Methylmercury Stable Isotope Measurements in Giant Petrels_V3.xml
Original FGDC Metadata
View 		18.25 KB application/fgdc+xml
Data_Dictionary_Petrel.csv 40.4 KB text/csv
Table1_Petrel_Isotope_Data.csv 4.12 KB text/csv
Table2_Petrel_QAQC.csv 6.2 KB text/csv

Purpose

These data were collected to assess the extent of internal demethylation and biomineralization of mercury in seabirds. This information is vital for the future use of mercury stable isotopes in birds and mammals for source attribution and management decisions.

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Communities

  • USGS Data Release Products
  • Upper Midwest Water Science Center

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Type Scheme Key
DOI https://www.sciencebase.gov/vocab/category/item/identifier doi:10.5066/P9UEG9Q1

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