Title: Evolutionary Significant Unit Boundaries, Steelhead Trout: Russian River, California, 2002
- Line data
- 2002
- Not owned by MIT (Owned by Stanford)
Dates
- Issued: 2002
- Coverage: 2002
Publishers
- Circuit Rider Productions
Summary
This line shapefile of evolutionary significant unit (ESU) boundaries was compiled from various sources based on written descriptions in National Marine Fisheries Service (NMFS) status reviews (available upon request) and mapping provided by NMFS. An Evolutionary significant unit, or ESU, of Pacific salmon is considered to be a "distinct population segment" and thus a "species" under the Endangered Species Act. Initial boundaries were derived from USGS 1:250,000 scale hydrologic unit boundaries. Drainage basin delineation from blockages was based on 1:100,000 stream hydrography and/or and available digital topography(1:250,000). Species do not necessarily inhabit all drainages or river reaches depicted. This dataset includes evolutionary significant unit (ESU) boundaries depicting major basins within the current known range of each ESU, and were modified based on migration blockages and known fish distribution. Circuit Rider Productions and National Oceanic and Atmospheric Administration (2002). Evolutionary Significant Unit Boundaries, Steelhead Trout: Russian River, California, 2002. Circuit Rider Productions. Available at: http://purl.stanford.edu/jg504gg7016 This dataset represents the original source dataset from which * layer was derived. This layer is presented in the WGS84 coordinate system for web display purposes. Downloadable data are provided in native coordinate system or projection.
Subjects
- Environment
- Inland Waters
- Sonoma County (Calif.)
- Mendocino County (Calif.)
- Russian River Watershed (Calif.)
- Steelhead (Fish)
- Datasets
Geospatial coordinates
- Bounding Box: BBOX (-124.741815, -112.994403, 49.000341, 33.99681)
- Geometry: BBOX (-124.741815, -112.994403, 49.000341, 33.99681)
Provider
Stanford
Rights
- Access rights: Restricted
Citation
Circuit Rider Productions. Evolutionary Significant Unit Boundaries, Steelhead Trout: Russian River, California, 2002. Circuit Rider Productions. Line data. https://purl.stanford.edu/jg504gg7016
Format
Shapefile
Languages
- English