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In the 2008 Red List assessment, a total of 75 extant and five extinct 'subpopulations' were identified across the natural range of O. nerka. In the 2011 amendment, several of these subpopulations were further subdivided based on additional input from salmon specialists (Pacific Salmon Commission, PSC, and Fisheries and Oceans Canada, DFO), resulting in a total of 98 subpopulations, of which 93 are extant. The subpopulations in this assessment are considered independent and reproductively isolated from each other. The assessors used a combination of ecoregional (i.e., marine and freshwater habitat-based) classification and the degree of genetic divergence between known spawning 'locations', using an FST value of...
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Derived from: Wild Salmon Center. 2008. Pacific Salmon Conservation Assessment: Vector digital data. Portland, OR: Wild Salmon Center. The PSCA dataset represents a synthesis of the best available data and salmon abundance models as of 2007.  These data should be used at the scale of the range of Pacific Salmon. This database has not been formally assessed for its accuracy.  Based upon expert opinion and validation with the literature, the PSCA database accurately represents broad, range-wide patterns of salmon abundance and diversity.  Much of the data, particularly in the Russian Far East, is based upon modeling.  Refer to Pinsky et al (2009) for a complete summary of methods and data quality. Pinsky, M....
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The first of six strategies in Canada’s Policy for the Conservation of Wild Pacific Salmon concerns the identification of units of diversity (called Conservation Units) and determining their conservation status. The primary purpose of this document is to describe the method that was developed to identify the Conservation Units for the five species of Pacific salmon in British Columbia. The description of units in most of the Yukon and Northwest Territories will proceed using this method once the ecotypology of those areas is completed.The approach of Waples et al. (2005, Journal of Fish Biology, volume 59, pages 1-41) was modified to characterize diversity in Pacific salmon along three major axes: ecology, life...
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In the 2008 Red List assessment, a total of 75 extant and five extinct 'subpopulations' were identified across the natural range of O. nerka. In the 2011 amendment, several of these subpopulations were further subdivided based on additional input from salmon specialists (Pacific Salmon Commission, PSC, and Fisheries and Oceans Canada, DFO), resulting in a total of 98 subpopulations, of which 93 are extant. The subpopulations in this assessment are considered independent and reproductively isolated from each other. The assessors used a combination of ecoregional (i.e., marine and freshwater habitat-based) classification and the degree of genetic divergence between known spawning 'locations', using an F ST value...
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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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These data are intended for use in a variety of applications where fish distribution and activity is important. Note that the StreamNet database contains distribution information for numerous species. Within the source database, overlap does not exist for a particular species/run/subrun combination. See information under the spatial process log for specific information regarding the query that was used to construct this particular feature class.
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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 StreamNet Generalized Fish Distribution - Anadromous Species BC Salmon Conservation Units - Version 2 (May 2008) IUCN Sockeye Assessment, Status IUCN Sockeye Salmon Assessment North Pacific LCC Prioritization Input:  Wild Sockeye Salmon Abundance Estimate, Average 1998-2005 StreamNet Generalized Fish Distribution - Anadromous Species BC Salmon Conservation Units - Version 2 (May 2008) North Pacific LCC Prioritization Input:  Wild Sockeye Salmon Abundance Estimate, Average 1998-2005 IUCN Sockeye Assessment, Status IUCN Sockeye Salmon Assessment