Methylmercury and associated data in macroinvertebrates from tributaries of Honnedaga Lake and from the Middle Branch Black River in New York.

Macroinvertebrate samples were collected from streams tributary to Honnedaga Lake and from the Middle Branch of the Black River during 2012-2016 and analyzed for methylmercury concentrations and for stable isotope ratios of nitrogen and carbon. Macroinvertebrates were identified in the field, and the level of taxonomic resolution varied from order to species; most taxa were identified to the family level. Specimens were field-processed into composite samples, field-frozen, and submitted to the mercury laboratory for freeze-drying and analysis. Subsamples were then submitted to the stable isotope laboratory for analysis of nitrogen and carbon isotope ratios. This database contains the resulting data and associated information for these composite samples of whole macroinvertebrates.

Data and Resources

Field Value
accessLevel public
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identifier USGS:5e7e3d63e4b01d509276dbf9
metadata_type geospatial
modified 20200825
old-spatial -75.602502436914, 43.254755172871, -74.492883296334, 43.689274963314
publisher U.S. Geological Survey
publisher_hierarchy Department of the Interior > U.S. Geological Survey
resource-type Dataset
source_datajson_identifier true
source_hash 2e5a421f799c5289ab42e28b17f1c58664afa34d
source_schema_version 1.1
spatial {"type": "Polygon", "coordinates": [[[-75.602502436914, 43.254755172871], [-75.602502436914, 43.689274963314], [ -74.492883296334, 43.689274963314], [ -74.492883296334, 43.254755172871], [-75.602502436914, 43.254755172871]]]}
theme {geospatial}
Groups
  • AmeriGEOSS
  • National Provider
  • North America
Tags
  • amerigeo
  • amerigeoss
  • ckan
  • ecotoxicology
  • geo
  • geoss
  • herkimer-county
  • honnedaga-lake
  • macroinvertebrates
  • methylmercury
  • middle-branch-black-river
  • national
  • new-york
  • north-america
  • streams
  • united-states
  • usgs-5e7e3d63e4b01d509276dbf9
isopen False
license_id notspecified
license_title License not specified
maintainer Karen Riva-Murray
maintainer_email krmurray@usgs.gov
metadata_created 2025-11-20T04:59:13.773592
metadata_modified 2025-11-20T04:59:13.773596
notes Macroinvertebrate samples were collected from streams tributary to Honnedaga Lake and from the Middle Branch of the Black River during 2012-2016 and analyzed for methylmercury concentrations and for stable isotope ratios of nitrogen and carbon. Macroinvertebrates were identified in the field, and the level of taxonomic resolution varied from order to species; most taxa were identified to the family level. Specimens were field-processed into composite samples, field-frozen, and submitted to the mercury laboratory for freeze-drying and analysis. Subsamples were then submitted to the stable isotope laboratory for analysis of nitrogen and carbon isotope ratios. This database contains the resulting data and associated information for these composite samples of whole macroinvertebrates.
num_resources 2
num_tags 17
title Methylmercury and associated data in macroinvertebrates from tributaries of Honnedaga Lake and from the Middle Branch Black River in New York.