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- Critical Habitat for Coho along the Oregon Coast ESU
Critical Habitat for Coho along the Oregon Coast ESU
- Description:
These GIS data contain stream reaches that were designated as "critical habitat" for the Oregon Coast coho salmon Evolutionarily Significant Unit (ESU). The critical habitat is defined in the National Marine Fisheries Service's (NOAA Fisheries) final rule to designate critical habitat for this ESU on February 11, 2008 (73 FR 7816). The fish distribution in this data set was compiled from data gathered from the Oregon Department of Fish and Wildlife (ODFW). Additionally, we received comments from the public, federal agencies, and state and tribal salmon co-managers during the rule making process.
The ESU distribution data originated from ODFW's 1:100,000 scale enhanced fish distribution data. The ODFW mapped fish distribution on 1:24,000 scale USGS topographic maps and transferred the data to a 1:100,000 scale hydrography layer. However, some of the streams found on a 1:24,000 scale map are not found in the 1:100,000 scale hydrography. These non-matching streams are recorded as points representing the upper extent of fish distribution. We created new stream segments for these 1:24,000 scale points. - We have excluded portions of the range of the ESU from the final designation of critical habitat. Exclusions are based on economic and other relevant impacts considered during our analysis, as described in our 4(b)(2) Report. We also excluded Indian lands. For exact legal descriptions of critical habitat please consult the Final Rule published in the Federal Register on February 11, 2008 (73 FR 7816).
- Data Provided By:
- NOAA Fisheries, West Coast Region
- Content date:
- not specified
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- not specified
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- Use Constraints:
- These data are supplemental to the final rule to designate critical habitat for the Oregon Coast coho salmon ESU. These data are not intended to replace the information contained within the final rule for critical habitat. There are habitat areas in this data set which are excluded from critical habitat due to the presence of Indian lands. For an exact description of critical habitat, please consult the Federal Register notice for critical habitat. - These data describe the best available information at the time of the final rule for critical habitat. The data describe habitat areas that were occupied by the species at the time of designation. However, due to natural variations in run size, water conditions, or other environmental factors, some areas displayed may not be used by a species of fish on an annual basis. Likewise, there may be additional habitat areas, not captured by these data, that are utilized by the species.
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