The data are species counts by location, as well as other environmental variables for each stream location sampled. This dataset is associated with the following publication: Stamp, J., A. Moore, S. Fiske, J. Gerritsen, B. Bierwagen, and A. Hamilton. Effects of Extreme High Flow Events on Macroinvertebrate Communities in Vermont Streams. River Research and Applications. John Wiley & Sons Incorporated, New York, NY, USA, 36(9): 1891-1902, (2020).

These data have been collected as part of a cooperative project in between the U.S. Geological Survey Colorado Water Science Center, Colorado Springs Utility, and Colorado Springs Engineering. This project began in 2005 and has collected macroinvertebrate samples from Fountain Creek and its tributaries to monitor the biological condition of this watershed. Provided in this data release are Multimetric Index (MMI) values of aquatic macroinvertebrate assemblages using four different sampling methods. There are two subsets of these data included: (1) MMI values of macroinvertebrate data collected from 2010 to 2012 at 15 sites as part of an invertebrate sample method comparison Scientific Investigations Report (SIR) titled “Comparability among Four Invertebrate Sampling Methods and the Recalibrated Multimetric Index Values, Fountain Creek Basin, Colorado, 2010 – 2012”, and (2) all the MMI values from macroinvertebrate data collected at 34 sites from 2005 to 2016. This USGS data release contains all the data and files to reproduce results of the SIR. Data preparation of these data files is fully described in the SIR.

A data release containing information on macroinvertebrate communities and sediment toxicity in the Niagara River and adjacent areas collected during a sampling effort conducted between 2019 and 2020, and a sampling effort conducted in 2022. During the first sampling effort, bed sediments were collected at 60 sites in the Niagara River, 5 sites on lower Smoke Creek, and 6 sites on Hoyt Lake for use in sediment toxicity testing and determination of grain size distribution and total organic carbon concentration. Additionally, macroinvertebrate samples were collected from the 60 sites on the Niagara River. During the second sampling effort, bed sediments were collected at 10 sites on lower Smoke Creek (5 of which were repeated from the first sampling effort), 5 reference sites on upper Smoke Creek, and 6 sites on Hoyt Lake (all of which were repeated from the first sampling effort) for toxicity testing, macroinvertebrate community assessment, and and determination of grain size distribution and total organic carbon concentration. Additionally, sediments were collected at 10 sites in the Black Rock Canal, 5 reference sites in the upper Black Rock Canal, and 5 sites in Erie Basin Marina for macroinvertebrate community assessment. The selection of site locations and analyses was done by the U.S. Army Corps of Engineers and the New York State Department of Environmental Conservation based on existing data gaps and prior sediment chemistry data. For both sampling efforts, in situ habitat measurements were taken at the time of sample collection at all sites. All sediment samples were collected using a petite Ponar dredge. Ten-day sediment toxicity tests were performed using two test species, Chironomus dilutus and Hyalella azteca, following standard USEPA test methods. Macroinvertebrates were identified to the lowest practical taxonomic resolution and used to calculate metrics of biological integrity following standard New York State Department of Environmental Conservation procedures. A morphological deformity analysis was also conducted on the mentum mouthpart of midge larvae in the genus Chironomus as an additional measure of toxicity following standard New York State Department of Environmental Conservation procedures. The data release has five separate tables: one containing site locations and habitat information, one containing the results of sediment toxicity tests, one containing macroinvertebrate identifications, one containing standard New York State Department of Environmental Conservation metrics of macroinvertebrate community integrity calculated from the macroinvertebrate identifications, and one containing the results of the morphological deformity analysis.

This data package contains a series of datasets collected for the Mid-Atlantic Network’s (MIDN) Benthic Macroinvertebrate Monitoring Program. These data were collected during the development of the monitoring program prior to the publication of the monitoring protocol (Dammeyer 2018; https://irma.nps.gov/DataStore/Reference/Profile/2256449). The monitoring program was established to serve 9 national parks in Pennsylvania and Virginia spanning the Piedmont and Coastal Plain of the Mid-Atlantic region. The program was established in partnership with Appalachian Aquatic Consultants and was implemented using methods described in a draft monitoring document (Voshell and Hiner, unpublished). These methods were used to collect data from 2009 through the spring of 2018. During that time, slight changes in methodology occurred (primarily in how macroinvertebrate samples were composited; see metadata file for further information). This data package is limited to those data that were collected using the methodology developed in partnership with Appalachian Aquatic Consultants. The network began the transition to state-based monitoring methods in 2016, published a state-based protocol in 2018, and fully transitioned to state-based methods in 2019. No data collected using state-based methods are included in this data package. The datasets provided in this package are intended to serve as an archive of the data that was collected using the initial methods and is relevant for analytical purposes. Additionally, these data, documentation of procedures, and associated supporting products have been archived locally.

Source data from the National Aquatic Resource Survey's National Rivers and Streams Assessment containing benthic macroinvertebrate and fish taxa data and environmental predictor variables for stream sites. Results data contains estimated of taxa richness for invertebrates and fish for both ecoregions and hydrologic units. This dataset is associated with the following publication: Hughes, R.M., A. Herlihy, R. Comeleo, D. Peck, R. Mitchell, and S. Paulsen. Patterns in and predictors of stream and river macroinvertebrate genera and fish species richness across the conterminous USA. Knowledge and Management of Aquatic Ecosystems. EDP Sciences, LES ULIS, FRANCE, 424: 2023014, (2023).

Macroinvertebrate and environmental data were collected annually in July-August in the year before dike removal (2009) and the first three years after dike removal (2010-2012) at the Nisqually River Delta, Washington, U.S.A. Data were collected along a gradient extending from the inner marsh edge to the delta front and spanning different types of habitat including marsh restored to tidal inundation by dike removal, previously restored marsh, undisturbed reference marsh, and tidal flats. Biological data comprised benthic macroinvertebrate species composition, abundance, and biomass. Environmental correlates included bed elevation; sediment grain size, organic content, and pH; and water column temperature, salinity, and dissolved oxygen.