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This data set contains imagery from the National Agriculture Imagery Program (NAIP). The NAIP program is administered by USDA FSA and has been established to support two main FSA strategic goals centered on agricultural production. These are, increase stewardship of America's natural resources while enhancing the environment, and to ensure commodities are procured and distributed effectively and efficiently to increase food security. The NAIP program supports these goals by acquiring and providing ortho imagery that has been collected during the agricultural growing season in the U.S. The NAIP ortho imagery is tailored to meet FSA requirements and is a fundamental tool used to support FSA farm and conservation programs....
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Pebble counts were used to characterize the sediment grain size distribution of the bed surface for two reaches of the lower Merced River in California's Central Valley to support research intended to evaluate the extent to which large-scale restoration projects provided improved salmon spawning habitat. A related goal of this study was to improve our understanding of the geomorphic factors influencing spawning site selection by salmon. The pebble counts were performed at the Merced River Ranch and Robinson Reach field sites using the method of Wolman [1954]. Grain diameters (n>100) were measured using a gravelometer by recording the largest opening on the gravelometer that an individual particle did NOT pass...
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The Passage Assessment Database (PAD) geospatial file contains locations of known and potential barriers to salmonid migration in California streams with additional information about each record. The PAD is an ongoing map-based inventory of known and potential barriers to anadromous fish in California, compiled and maintained through a cooperative interagency agreement. The PAD compiles currently available fish passage information from many different sources, allows past and future barrier assessments to be standardized and stored in one place, and enables the analysis of cumulative effects of passage barriers in the context of overall watershed health. The database is set up to capture basic information about each...
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This feature class describes areas used for subsistence harvesting of salmon in 2009 by surveyed households in Red Devil, Alaska. This is a partial representation of areas used for resource harvesting in 2009.
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During autumn 2009 and winter 2010, the U.S. Geological Survey (USGS), in cooperation with the U.S. Army Corps of Engineers (USACE), conducted a hydrographic survey using a multibeam echosounder system (MBES). The survey was from river mile (RM) 130 to 142 on the Snake River, and from RM 0 to 2 on the Clearwater River areas of Lower Granite Reservoir. The survey mapped the part of the river that was accessible to the boat and the echosounder equipment, but very shallow areas along the banks that were inaccessible or too shallow to be measured with echosounder equipment were not mapped. The survey was conducted in 1-mile segments, and the data were combined to provide a continuous digital elevation dataset of the...
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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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Understanding how routing modifications influence survival of juvenile salmon is complex because reach-specific survival and routing at key river junctions in the North Delta each have a different relationship with river flow. Therefore, to facilitate understanding of how routing modifications at key river junctions influence through-Delta survival, we developed this spreadsheet model to allow managers to explore the potential effects of modifying routing. The purpose is to provide a screening tool that allows managers to quickly run many different scenarios to understand how both routing and route-specific survival interact to affect overall survival through the Delta. This tool may be useful in narrowing the range...
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This dataset contains the 2012 version of the anadromous fish streams (polylines) for Southeast Alaska and is pull from the Anadromous Waters Catalog. The Alaska Department of Fish and Game's (ADF&G) Anadromous water bodies data is derived from the ADF&G's GIS shape files for the "Catalog of Waters Important for Spawning, Rearing or Migration of Anadromous Fishes" (referred to as the "Catalog") and the "Atlas to the Catalog of Waters Important for Spawning, Rearing or Migration of Anadromous Fishes" (referred to as the "Atlas"). It is produced for general visual reference and to aid users in generating various natural resource analyses and products. The shape files depict the known anadromous fish bearing lakes...
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Field measurements of saturated hydraulic conductivity were used to characterize the streambed permeability for two reaches of the lower Merced River in California's Central Valley to support research intended to evaluate the extent to which large-scale restoration projects provided improved salmon spawning habitat. A related goal of this study was to improve our understanding of the geomorphic factors influencing spawning site selection by salmon. Saturated hydraulic conductivity, denoted by K, was measured with a backpack permeameter and modified Mark VI groundwater standpipe using the constant head method of Terhune [1958]. For each reach, permeameter measurements were collected at ten sites spanning a single...
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Native fish of the Columbia River Basin, and the ecosystems that support them, are an innate and critical part of Nez Perce culture. The persistence of these fisheries may be at risk due to climate change, especially in combination with other stressors (e.g., habitat fragmentation and disconnectivity). Assessing vulnerability of these fisheries to climate change, considering options for action, and taking action will require strategic collaboration and coordination with multiple partners. Here, we propose to start building those partnerships to address this landscape-level conservation concern.The overarching philosophy of Nez Perce fisheries management is to ensure that all species and populations of anadromous...
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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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We used snorkel surveys in the Elwha River, conducted in consecutive years before (2007, 2008) and after (2018, 2019) dam removal to assess changes in fish distribution and density. In total, we counted 54,616 Chinook Salmon, Bull Trout, Steelhead, and trout (Rainbow Trout and Coastal Cutthroat Trout combined) in 22 common reaches spanning 65 river kilometers. The occupancy of juvenile Chinook Salmon, Coho Salmon, and trout was also assessed following dam removal.
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Field measurements of water depth were acquired from a reach of the upper American River in California, November 5-7, 2018, to support research on mapping chinook salmon spawning locations (redds) via remote sensing. The depth measurements included in this data release were obtained by wading the shallow channel margins with RTK GPS receivers and measuring water surface elevations along the water's edge and bed elevations within the channel; depths were calculated by subtracting bed elevations from the nearest water surface elevation. For the deeper areas representing most of the channel, depths were recorded along a series of cross-sections by a SonTek RiverSurveyor S5 acoustic Doppler current profiler (ADCP) deployed...
map background search result map search result map Anadromous Fish Streams Chum Salmon Conservation Units - Version 2 (May 2008) California Fish Passage Assessment Database [ds69] Climate adaptation planning for Nez Perce fisheries Comparative landscape genetic analysis of three Pacific salmon species from subarctic North America Dynamic in-lake spawning migrations by female sockeye salmon Abundance and Run Timing of Adult Salmon in the Kateel River, Koyukuk National Wildlife Refuge, Alaska, 2001-2003 Abundance and run timing of adult salmon in three tributaries of the Koyukuk River, Alaska, 2001 Abundance and run timing of adult salmon in Henshaw Creek, Kanuti National Wildlife Refuge, Alaska, 2000-2003 FSA 10:1 NAIP Imagery m_4511349_sw_12_1_20150615_20160104 3.75 x 3.75 minute JPEG2000 from The National Map USGS 1:62500-scale Quadrangle for Salmon, ID 1950 USGS 1:24000-scale Quadrangle for Salmon, ID 1989 Pebble count-based bed surface sediment grain size distributions from two restored reaches of the lower Merced River, California Measurements of streambed permeability from two restored reaches of the lower Merced River, California BLM REA YKL 2011 Subsistence Harvest Areas of Salmon in Red Devil, Alaska. Field measurements of water depth from the American River, California, November 5-7, 2018 Riverscape snorkeling surveys of salmonid distribution and abundance before (2007, 2008) and after (2018, 2019) dam removal on the Elwha River, Washington Bathymetry Data for Portions of Lower Granite Reservoir and Vicinity, Washington and Idaho, 2009-10 The North Delta Routing and Survival Management Tool Field measurements of water depth from the American River, California, November 5-7, 2018 FSA 10:1 NAIP Imagery m_4511349_sw_12_1_20150615_20160104 3.75 x 3.75 minute JPEG2000 from The National Map Pebble count-based bed surface sediment grain size distributions from two restored reaches of the lower Merced River, California Measurements of streambed permeability from two restored reaches of the lower Merced River, California USGS 1:24000-scale Quadrangle for Salmon, ID 1989 USGS 1:62500-scale Quadrangle for Salmon, ID 1950 BLM REA YKL 2011 Subsistence Harvest Areas of Salmon in Red Devil, Alaska. The North Delta Routing and Survival Management Tool Abundance and run timing of adult salmon in Henshaw Creek, Kanuti National Wildlife Refuge, Alaska, 2000-2003 Dynamic in-lake spawning migrations by female sockeye salmon Abundance and Run Timing of Adult Salmon in the Kateel River, Koyukuk National Wildlife Refuge, Alaska, 2001-2003 Climate adaptation planning for Nez Perce fisheries Abundance and run timing of adult salmon in three tributaries of the Koyukuk River, Alaska, 2001 California Fish Passage Assessment Database [ds69] Anadromous Fish Streams Chum Salmon Conservation Units - Version 2 (May 2008) Comparative landscape genetic analysis of three Pacific salmon species from subarctic North America