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Fish and Benthic Macroinvertebrate Flow-Ecology Regression Summary Statistics for Virginia

Metadata Updated: July 6, 2024

Data provided from the Virginia Department of Environmental Quality (DEQ) including simulated values of 72 hydrologic metrics, or indicators of hydrologic alteration (IHA), 37 fish metrics, and 64 benthic invertebrate metrics were reviewed to assess significant flow-ecology relations that may be developed. Hydrologic alteration was represented by simulation of streamflow record for a pre-water-withdrawal condition (baseline) without dams or developed land, compared to the simulated recent-flow condition (2008) including withdrawals, dams and altered landscape to calculate a percent-alteration of flow. Biological samples used represent a median condition of the biological community from 1972 to 2010.
This study reviewed more than 7,272 linear regression models that relate altered flow conditions to biological sample metrics in Virginia. Decreasing flow conditions were the focus of this evaluation because of their relevance to the water-supply permitting process. The data tables highlight relations which may be significant and useful in future study and were further explored in the companion report; and relations that do not meet basic assumptions for valid linear regressions which were noted and omitted from the companion report. The three regions in Virginia defined by major drainage and physiographic boundaries as the Ohio River Drainages, Atlantic non-Coastal Plain, and Atlantic Coastal Plain were evaluated as well as a statewide grouping for fish and benthic data.
This extensive dataset provided the opportunity for hypothesis testing and prioritization of flow-ecology relations that have the potential to explain the effect(s) hydrologic alteration has on biological metrics in Virginia.

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 July 6, 2024

Metadata Source

Harvested from DOI EDI

Additional Metadata

Resource Type Dataset
Metadata Created Date June 1, 2023
Metadata Updated Date July 6, 2024
Publisher U.S. Geological Survey
Maintainer
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Identifier USGS:58c1b358e4b014cc3a3d399e
Data Last Modified 20200827
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
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Harvest Source Id 52bfcc16-6e15-478f-809a-b1bc76f1aeda
Harvest Source Title DOI EDI
Metadata Type geospatial
Old Spatial -83.781738281497,36.491621721003,-75.168457031841,39.6053510816
Publisher Hierarchy White House > U.S. Department of the Interior > U.S. Geological Survey
Source Datajson Identifier True
Source Hash f21fbd299ec8707b431d2257aac9d7605bdb6d5c6cdc5533fb1e5036f054b812
Source Schema Version 1.1
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