The Federal Columbia River Power Supply (FCRPS) Biological Opinion (BiOp) calls for studies that estimate ecological and genetic impacts of hatchery fish on wild populations, and evaluate the effectiveness of hatchery supplementation measures to reduce potentially harmful effects of artificial production to aid recovery through hatchery reform. The FCRPS BiOp further explicitly calls for studies that examine the appropriate role of supplementation and the relationship between supplementation and habitat actions in salmon recovery. A basic premise of supplementation is that artificially produced fish will help develop self-sustaining spawning populations both by increasing current natural production and reestablishing populations in underutilized and recovered habitats. One hatchery reform measure that has been incorporated into many supplementation programs throughout the Columbia River Basin is the use of satellite acclimation facilities to repopulate underutilized habitat. However, the efficacy of these facilities in re-establishing naturally spawning populations and minimizing negative interactions between wild spawners and supplemented fish has not been established. Our studies have involved comprehensive carcass and redd mapping surveys and radio telemetry to examine the role of acclimation sites in homing and spawning of spring Chinook salmon released as part of the Yakima/Klickitat Fisheries Project (YKFP) supplementation program. In addition, we are examining the complex linkages between habitat quality and spawning site selection in supplemented Columbia River populations. These studies involve mapping and assessing habitat distribution and quality relative to supplementation rearing and release facilities, and coupling these findings to ongoing analysis of homing and spawning patterns. Our results have provided unique insights into the process of homing, straying, and spawning site selection, interactions and success of hatchery and wild spawners, and the efficacy of supplementation and acclimation sites in salmon recovery. These studies will help identify appropriate locations for recovery-related supplementation rearing and release facilities (acclimation sites), and ultimately allow us to develop scenario models predicting the spatial distribution of spawning relative to proposed supplementation facilities and available habitat (including future habitat restoration sites). The work is being conducted by Northwest Fisheries Science Center (NWFSC) scientists collaborating with the University of Washington, Yakima Nation, U.S. Geological Survey (USGS), and the Washington Department of Fish and Wildlife (WDFW). Products for this project include annual reports, peer-reviewed publications, presentation of results at local and national meetings, and consultation with the Northwest Regional Office (NWR) and supplementation managers. Comprehensive GIS data of Yakima River Spring Chinook redds.

The Federal Columbia River Power Supply (FCRPS) Biological Opinion (BiOp) calls for studies that estimate ecological and genetic impacts of hatchery fish on wild populations, and evaluate the effectiveness of hatchery supplementation measures to reduce potentially harmful effects of artificial production to aid recovery through hatchery reform. The FCRPS BiOp further explicitly calls for studies that examine the appropriate role of supplementation and the relationship between supplementation and habitat actions in salmon recovery. A basic premise of supplementation is that artificially produced fish will help develop self-sustaining spawning populations both by increasing current natural production and reestablishing populations in underutilized and recovered habitats. One hatchery reform measure that has been incorporated into many supplementation programs throughout the Columbia River Basin is the use of satellite acclimation facilities to repopulate underutilized habitat. However, the efficacy of these facilities in re-establishing naturally spawning populations and minimizing negative interactions between wild spawners and supplemented fish has not been established. Our studies have involved comprehensive carcass and redd mapping surveys and radio telemetry to examine the role of acclimation sites in homing and spawning of spring Chinook salmon released as part of the Yakima/Klickitat Fisheries Project (YKFP) supplementation program. In addition, we are examining the complex linkages between habitat quality and spawning site selection in supplemented Columbia River populations. These studies involve mapping and assessing habitat distribution and quality relative to supplementation rearing and release facilities, and coupling these findings to ongoing analysis of homing and spawning patterns. Our results have provided unique insights into the process of homing, straying, and spawning site selection, interactions and success of hatchery and wild spawners, and the efficacy of supplementation and acclimation sites in salmon recovery. These studies will help identify appropriate locations for recovery-related supplementation rearing and release facilities (acclimation sites), and ultimately allow us to develop scenario models predicting the spatial distribution of spawning relative to proposed supplementation facilities and available habitat (including future habitat restoration sites). The work is being conducted by Northwest Fisheries Science Center (NWFSC) scientists collaborating with the University of Washington, Yakima Nation, U.S. Geological Survey (USGS), and the Washington Department of Fish and Wildlife (WDFW). Products for this project include annual reports, peer-reviewed publications, presentation of results at local and national meetings, and consultation with the Northwest Regional Office (NWR) and supplementation managers. GIS linked spatially continuous habitat assessments.

Using existing habitat datasets and natural-history traits, we created a Habitat Suitability Index (HSI) model in ArcGIS to determine the distribution of suitable habitat for harvested clams in Yaquina Bay. Existing habitat datasets were used to interpolate value estimates throughout the bay for the four input habitat variables used in the model (sediment % fines, bathymetry, salinity, and burrowing shrimp presence). Natural history traits (derived from literature) were then used to assign binary suitability values to each habitat variable for each species. The suitability sum of these variable layers then produced an overall HSI value of 0-4 (low-high). To validate this model, we used existing bivalve (presence/absence) data to calculate presence probabilities. Included in this dataset are these bivalve data, along with the habitat estimates and suitability values produced by our model. This dataset is associated with the following publication: Lewis, N., E. Fox, and T. DeWitt. Estimating the distribution of harvested estuarine bivalves with natural-history-based habitat suitability models... ESTUARINE, COASTAL AND SHELF SCIENCE. Elsevier Science Ltd, New York, NY, USA, 219: 453-472, (2019).

Using existing habitat datasets and natural-history traits, we created a Habitat Suitability Index (HSI) model in ArcGIS to determine the distribution of suitable habitat for harvested clams in Yaquina Bay. Existing habitat datasets were used to interpolate value estimates throughout the bay for the four input habitat variables used in the model (sediment % fines, bathymetry, salinity, and burrowing shrimp presence). Natural history traits (derived from literature) were then used to assign binary suitability values to each habitat variable for each species. The suitability sum of these variable layers then produced an overall HSI value of 0-4 (low-high). To validate this model, we used existing bivalve (presence/absence) data to calculate presence probabilities. Included in this dataset are these bivalve data, along with the habitat estimates and suitability values produced by our model. This dataset is associated with the following publication: Lewis, N., E. Fox, and T. DeWitt. Estimating the distribution of harvested estuarine bivalves with natural-history-based habitat suitability models... ESTUARINE, COASTAL AND SHELF SCIENCE. Elsevier Science Ltd, New York, NY, USA, 219: 453-472, (2019).

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The dataset ds181_Chinook_ln is a product of the CalFish Adult Salmonid Abundance Database. Data in this shapefile are collected from stream sections or reaches where Chinook population monitoring occurs and that are best represented by linear features. Some escapement monitoring locations are logically represented by point features, such as dams and hatcheries. See the companion point feature shapefile ds180_Chinook_pnts for information collected from point locations.The CalFish Abundance Database contains a comprehensive collection of anadromous fisheries abundance information. Beginning in 1998, the Pacific States Marine Fisheries Commission, the California Department of Fish and Game, and the National Marine Fisheries Service, began a cooperative project aimed at collecting, archiving, and entering into standardized electronic formats, the wealth of information generated by fisheries resource management agencies and tribes throughout California.The data format provides for sufficient detail to convey the relative accuracy of each population trend index record yet is simple and straight forward enough to be suited for public use. For those interested in more detail the database offers hyperlinks to digital copies of the original documents used to compile the information. In this way the database serves as an information hub directing the user to additional supporting information. This offers utility to field biologists and others interested in obtaining information for more in-depth analysis. Hyperlinks, built into the spatial data attribute tables used in the BIOS and CalFish I-map viewers, open the detailed index data archived in the on-line CalFish database application. The information can also be queried directly from the database via the CalFish Tabular Data Query. Once the detailed annual trend data are in view, another hyperlink opens a digital copy of the document used to compile each record.During 2010, as a part of the Central Valley Chinook Comprehensive Monitoring Plan, the CalFish Salmonid Abundance Database was reorganized and updated. CalFish provides a central location for sharing Central Valley Chinook salmon escapement estimates and annual monitoring reports to all stakeholders, including the public. Annual Chinook salmon in-river escapement indices that were, in many cases, eight to ten years behind are now current though 2009. In some cases, multiple datasets were consolidated into a single, more comprehensive, dataset to more closely reflect how data are reported in the California Department of Fish and Game standard index, Grandtab.Extensive data are currently available in the CalFish Abundance Database for California Chinook, coho, and steelhead. Major data categories include adult abundance population estimates, actual fish and/or carcass counts, counts of fish collected at dams, weirs, or traps, and redd counts. Harvest data has also been compiled for many streams.This CalFish Abundance Database shapefile was generated from fully routed 1:100,000 hydrography. In a few cases streams had to be added to the hydrography dataset in order to provide a means to create shapefiles to represent abundance data associated with them. Streams added were digitized at no more than 1:24,000 scale based on stream line images portrayed in 1:24,000 Digital Raster Graphics (DRG).The features in this layer represent the location for which abundance data records apply. In many cases there are multiple datasets associated with the same location, and so, features may overlap. Please view the associated datasets for detail regarding specific features. In CalFish these are accessed through the "link" field that is visible when performing an identify or query operation. A URL string is provided with each feature in the downloadable data which can also be used to access the underlying datasets.The Chinook data that is available from the CalFish website is actually mirrored from the StreamNet website where the CalFish Abundance

This project examines the factors influencing fish populations including habitat, harvest, hatcheries, hydropower system operations, and climate change. It seeks to estimate impacts of these factors on Wenatchee River basin spring Chinook salmon through the use of the Shiraz life cycle model parameterized for this fish population. An evaluation of a suite of habitat restoration actions will be conducted, a reparameterized model to incorporate supplementation effects will estimate the impacts on wild fish from hatchery operations, and the influence of climate change as estimated from several bracketing Global Climate Models (and their basin impacts determined via DHSVM modeling) will be examined. The Shiraz and climate modeling work is led by Dr. Jon Honea at Emerson College (Boston, MA), an external collaborator who began this work in a post-doctoral position at the NWFSC. And, we are using life cycle modeling in an evaluation of benefit/cost of suites of freshwater habitat actions. Model.

Using existing habitat datasets and natural-history traits, we created a Habitat Suitability Index (HSI) model in ArcGIS to determine the distribution of suitable habitat for harvested clams in Tillamook Bay. Existing habitat datasets were used to interpolate value estimates throughout the bay for the four input habitat variables used in the model (sediment % fines, bathymetry, salinity, and burrowing shrimp presence). Natural history traits (derived from literature) were then used to assign binary suitability values to each habitat variable for each species. The suitability sum of these variable layers then produced an overall HSI value of 0-4 (low-high). To validate this model, we used existing bivalve (presence/absence) data to calculate presence probabilities. Included in this dataset are these bivalve data, along with the habitat estimates and suitability values produced by our model. This dataset is associated with the following publication: Lewis, N., E. Fox, and T. DeWitt. Estimating the distribution of harvested estuarine bivalves with natural-history-based habitat suitability models... ESTUARINE, COASTAL AND SHELF SCIENCE. Elsevier Science Ltd, New York, NY, USA, 219: 453-472, (2019).

Using existing habitat datasets and natural-history traits, we created a Habitat Suitability Index (HSI) model in ArcGIS to determine the distribution of suitable habitat for harvested clams in Tillamook Bay. Existing habitat datasets were used to interpolate value estimates throughout the bay for the four input habitat variables used in the model (sediment % fines, bathymetry, salinity, and burrowing shrimp presence). Natural history traits (derived from literature) were then used to assign binary suitability values to each habitat variable for each species. The suitability sum of these variable layers then produced an overall HSI value of 0-4 (low-high). To validate this model, we used existing bivalve (presence/absence) data to calculate presence probabilities. Included in this dataset are these bivalve data, along with the habitat estimates and suitability values produced by our model. This dataset is associated with the following publication: Lewis, N., E. Fox, and T. DeWitt. Estimating the distribution of harvested estuarine bivalves with natural-history-based habitat suitability models... ESTUARINE, COASTAL AND SHELF SCIENCE. Elsevier Science Ltd, New York, NY, USA, 219: 453-472, (2019).

The dataset ds180_Chinook_pnts is a product of the CalFish Adult Salmonid Abundance Database. Data in this shapefile are collected from point features, such as dams and hatcheries. Some escapement monitoring locations, such as spawning stock surveys, are logically represented by linear features. See the companion linear feature shapefile ds181_Chinook_ln for information collected from stream reaches.The CalFish Abundance Database contains a comprehensive collection of anadromous fisheries abundance information. Beginning in 1998, the Pacific States Marine Fisheries Commission, the California Department of Fish and Game, and the National Marine Fisheries Service, began a cooperative project aimed at collecting, archiving, and entering into standardized electronic formats, the wealth of information generated by fisheries resource management agencies and tribes throughout California.The data format provides for sufficient detail to convey the relative accuracy of each population trend index record yet is simple and straight forward enough to be suited for public use. For those interested in more detail the database offers hyperlinks to digital copies of the original documents used to compile the information. In this way the database serves as an information hub directing the user to additional supporting information. This offers utility to field biologists and others interested in obtaining information for more in-depth analysis. Hyperlinks, built into the spatial data attribute tables used in the BIOS and CalFish I-map viewers, open the detailed index data archived in the on-line CalFish database application. The information can also be queried directly from the database via the CalFish Tabular Data Query. Once the detailed annual trend data are in view, another hyperlink opens a digital copy of the document used to compile each record.During 2010, as a part of the Central Valley Chinook Comprehensive Monitoring Plan, the CalFish Salmonid Abundance Database was reorganized and updated. CalFish provides a central location for sharing Central Valley Chinook salmon escapement estimates and annual monitoring reports to all stakeholders, including the public. Annual Chinook salmon in-river escapement indices that were, in many cases, eight to ten years behind are now current though 2009. In some cases, multiple datasets were consolidated into a single, more comprehensive, dataset to more closely reflect how data are reported in the California Department of Fish and Game standard index, Grandtab.Extensive data are currently available in the CalFish Abundance Database for California Chinook, coho, and steelhead. Major data categories include adult abundance population estimates, actual fish and/or carcass counts, counts of fish collected at dams, weirs, or traps, and redd counts. Harvest data has also been compiled for many streams.This CalFish Abundance Database shapefile was generated from fully routed 1:100,000 hydrography. In a few cases streams had to be added to the hydrography dataset in order to provide a means to create shapefiles to represent abundance data associated with them. Streams added were digitized at no more than 1:24,000 scale based on stream line images portrayed in 1:24,000 Digital Raster Graphics (DRG).The features in this layer represent the location for which abundance data records apply. In many cases there are multiple datasets associated with the same location, and so, features may overlap. Please view the associated datasets for detail regarding specific features. In CalFish these are accessed through the "link" field that is visible when performing an identify or query operation. A URL string is provided with each feature in the downloadable data which can also be used to access the underlying datasets.The Chinook data that is available from the CalFish website is actually mirrored from the StreamNet website where the CalFish Abundance Databases tabular data is currently stored. Additional information