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Mercury and water level fluctuations in lakes of northern Minnesota - Summary of Sampling Sites Land Cover and Slope Characteristics

Metadata Updated: October 29, 2023

Water level fluctuations substantially alter the fauna, flora and microbial community of near-shore aquatic ecosystems. Water level management therefore has the potential to strongly influence a wide variety of ecosystem processes. Many northern temperate lake food webs experience substantial methylmercury contamination, which is partially mediated by the action of sulfate reducing bacteria occurring in sediments that are periodically inundated. For lakes with methylmercury problems, water level management could be designed to reduce methylmercury contamination. These data summarize land cover and slope characteristics within specified, buffered areas around study sites that were sampled in several northern Minnesota lakes, as part of the project described above. The land cover attributes include percent cover (within each buffered area) and number of hectares of each land cover class. The slope attributes include the overall net change in slope within each buffered area, as well as the standard deviation.

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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Dates

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
Maintainer
@Id http://datainventory.doi.gov/id/dataset/5ded3c90f930cac130b3f2832caf0b64
Identifier USGS:6123c602d34e40dd9c0350f5
Data Last Modified 20211103
Category geospatial
Public Access Level public
Bureau Code 010:12
Metadata Context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
Metadata Catalog ID https://datainventory.doi.gov/data.json
Schema Version https://project-open-data.cio.gov/v1.1/schema
Catalog Describedby https://project-open-data.cio.gov/v1.1/schema/catalog.json
Harvest Object Id 36552375-6996-4bcd-a835-30fb69bbcbd1
Harvest Source Id 52bfcc16-6e15-478f-809a-b1bc76f1aeda
Harvest Source Title DOI EDI
Metadata Type geospatial
Old Spatial -93.0945,48.28,-92.4063,48.6203
Publisher Hierarchy White House > U.S. Department of the Interior > U.S. Geological Survey
Source Datajson Identifier True
Source Hash acd1319a5f892870e7ef6ed2d0173200516c3fec160b755b76817d395cfc76af
Source Schema Version 1.1
Spatial {"type": "Polygon", "coordinates": -93.0945, 48.28, -93.0945, 48.6203, -92.4063, 48.6203, -92.4063, 48.28, -93.0945, 48.28}

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