Evolutionary Significant Unit Boundaries, Coho Salmon: Russian River, California, 2002

Description:

This line shapefile depicts Evolutionary significant unit (ESU) boundaries for Coho Salmon that were 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. Evolutionary significant unit (ESU) polygons depict 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, Coho Salmon: Russian River, California, 2002. Circuit Rider Productions. Available at: http://purl.stanford.edu/my201dw3541 This layer is presented in the WGS84 coordinate system for web display purposes. Downloadable data are provided in native coordinate system or projection.

Resource Link:

https://purl.stanford.edu/my201dw3541

Identifier:

https://purl.stanford.edu/my201dw3541

Language:

English

Creator:

Circuit Rider Productions

Publisher:

Circuit Rider Productions

Provider:

Stanford

Resource Class:

Datasets

Subject:

Coho salmon, Environment, and Inland Waters

Temporal Coverage:

2002

Date Issued:

2002

Spatial Coverage:

Sonoma County (Calif.), Mendocino County (Calif.), and Russian River Watershed (Calif.)

Access Rights:

Restricted

Format:

Shapefile