Mercury concentrations, isotopic composition, biomass, and taxonomy of stream and riparian organisms in the vicinity of Yellow Pine, Idaho, 2015-2016 (ver. 2.0, July 2025)

This data release includes sampling location data; field-collected stream attribute data; laboratory-analyzed chemistry concentrations (total mercury, methyl mercury) and isotopic composition (total mercury, carbon, and nitrogen) for stream biota (seston, periphyton, benthic insects, emerging adult insects, riparian spiders, and fish); density, body length, and taxonomic information for benthic insects; and density, biomass, and taxonomic information for emerging adult aquatic insects for biota sampled from stream reaches up and downstream of an historical mercury mine site. Sampling took place during summer low-flow conditions in 2015 and 2016. Stream reaches were located on U.S. Forest Service land near the Cinnabar Mine Site in the vicinity of Yellow Pine, ID, USA. Version 2.0 includes an additional table which describes subsampling of the Hess samples during processing. All data on benthic macroinvertebrates derived from Hess samples should be interpreted using this information about proportion of sample processed.

First release: 2022
Revised: July 2025 (ver. 2.0)