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Filters: Tags: Effects of changes in hydrologic regimes on anadromous fish (X) > Extensions: Shapefile (X)

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This theme shows the Key Watersheds that are located on BLM lands and adjacent Forest Service Lands, as identified during the Forest Ecosystem Management Assessment effort (Northwest Forest Plan - Record of Decision 1994). The initial mapping done in 1994 was a very generalized representation and was done prior to the development of the interagency standard 5th and 6th field watershed boundaries. The line work has been made coincident with the 5th and 6th field watershed lines where the Key Watershed Boundaries clearly intended to use a watershed as the boundary. District personnel have reviewed these edits to conform to the 5th and 6th field boundaries and have incorporated other edits to follow operationally identifiable...
The Aquatic and Riparian Effectiveness Monitoring Plan (AREMP) characterizes the ecological condition of watersheds and aquatic ecosystems to answer the core question: “Are the Northwest Forest Plan (NWFP) and the BLM Western Oregon Resource Management Plans maintaining and restoring the conditions of aquatic and riparian ecosystems on federal lands in the Forest Plan area?” AREMP determines the status and trend of inchannel and upslope-riparian watershed condition for sixth-field watersheds (HUC12) within the NWFP area. Upslope and riparian condition are based on mapped data (e.g. road density, vegetation) for all watersheds with ≥5% federal ownership. Inchannel condition is based on stream data (e.g. substrate,...
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Here we describe one conservation tool that will help to identify particularly significant river basins of the North Pacific for the conservation of salmon: the first Pacific-Rim wide assessment of salmon populations at a consistent scale. In conjunction with a scientific advisory panel and a peer review workshop we developed four criteria for the Pacific Salmon Conservation Assessment (PSCA) to provide an indication of aquatic ecosystem and salmon population resilience at the basin scale. These criteria are salmon abundance, diversity, hatchery influence, and landscape suitability. Highly abundant salmon populations have more “cushion” with which to absorb anthropogenic or natural disturbance (Quigley and...
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State of the Salmon GIS staff appended, cleaned, and clipped the basins to the North Pacific extent area. This coverage was then edited, by manual digitizing, checking accuracy against a 1:1,000,000 streams coverage, digital elevation models, and 4th field watershed boundaries where available. This process mostly entailed eliminating erroneous inclusion and exclusion of upper stream reaches within Hydro1k boundaries. When more detailed streams were consulted in the Pacific Northwest, Hydro1k basins could have been refined further and were in the cases when it affected distribution of salmonids at the time of processing (Summer 2004). This finer resolution stream data was not used extensively to maintain a consistent...
    map background search result map search result map USFS Aquatic and Riparian Effectiveness Monitoring Program Northwest Forest Plan Key Watersheds 2002 (Polygon) USFS Aquatic and Riparian Effectiveness Monitoring Program Northwest Forest Plan Key Watersheds 2002 (Polygon)