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YTT Undoc Xings [U.S. Fish and Wildlife Service]

Department of the Interior Full Details

Full Details

Title
YTT Undoc Xings [U.S. Fish and Wildlife Service]
Description
Thissupporting layers were generated through a GIS exercise to help inform road/ stream crossing surveys as to benefit fish passage and aquatic habitat connectivity. Using a digitized road layer, and Terrainwork's Netmap HUC-8 streamline data for the Yakutat area, we noted all intersections of the road and stream. Then based on a 30 meter buffer from these generated points to all known culvert documentation in the area we removed any that appeared duplicative, and moved on with the analysis with those appearing undocumented.Using Netmap habitat tools and swimming/ rearing characteristics of coho salmon, we were then able to find the upstream extent of anadromy from the culvert through a 12% gradient over 100 meter stream reach representing a gradient barrier, and using Romey et al Habitat Intrinsic Potential Model we further prioritize with the models summations of quality upstream habitat, with these points showing the highest survey priority.
Creator
Department of the Interior
Temporal Coverage
Last modified 2024-04-02
Date Issued
2024-03-22
Access Rights
Public
Format
File
Language
English
Date Added
August 28, 2025

Location

Links

Cite and Reference

  • Citation
    Department of the Interior (2024). YTT Undoc Xings [U.S. Fish and Wildlife Service]. . https://gis-fws.opendata.arcgis.com/maps/fws::ytt-undoc-xings (web service)
  • BTAA Geoportal Link

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