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The data set includes the macroinvertebrate metrics calculated by IDAS software (Cuffney 2003, USGS OFR 03-172) for the Midwest Stream Quality Assessment (MSQA). Invert data is taxonomic data that has been summarized into variables called metrics that summarize various components of the taxonomic data. The original taxonomic data comes from USGS BioData.
The data represent counts and presence of stream-dwelling aquatic macroinvertebrate communities in nine watersheds within the non-connected stormwater region in Kansas City, Missouri. Samples were collected from 3 stream habitats (coarse substrate in cobble riffles, depositional non-flow habitat in pools, and rootmats along shoreline areas). Macroinvertebrate organisms were enumerated and identified to the lowest practical taxonomic unit.
RIVPACS models produce a community-level measure of biological condition known as O/E, which is derived from a comparison of the observed (O) biota with those expected (E) to occur in the absence of anthropogenic stress. We used benthic macroinvertebrate and environmental data collected at 925 stream monitoring stations, from 1993 to 2001, to develop, validate, and apply a RIVPACS model to assess the biological condition of wadeable streams in Wyoming. From this dataset, 296 samples were identified as reference, 157 of which were used to calibrate the model, 46 to validate it, and 93 to examine temporal variability in reference site O/E-values. We used cluster analyses to group the model development reference sites...
Although the differential responses of stream taxa to metal exposure have been exploited for bioassessment and monitoring, the mechanisms affecting these responses are not well understood. In this study, the subcellular partitioning of metals in operationally defined metal-sensitive and detoxified fractions were analyzed in five insect taxa. Samples were collected in two separate years along an extensive metal contamination gradient in the Clark Fork River (MT, USA) to determine if interspecific differences in the metal concentrations of metal-sensitive fractions and detoxified fractions were linked to the differences in distributions of taxa relative to the gradient. Most of the Cd, Cu, and Zn body burdens were...
    map background search result map search result map Multi-stressor Predictive Models of Invertebrate Condition in the Corn Belt, U.S.A. Aquatic Macroinvertebrate Data Collected from Kansas City Metro Area Streams, 2011-2013 Aquatic Macroinvertebrate Data Collected from Kansas City Metro Area Streams, 2011-2013 Multi-stressor Predictive Models of Invertebrate Condition in the Corn Belt, U.S.A.