The Northwest Fisheries Science Center's (NWFSC) Salmon Population Summary (SPS) database provides public access to demographic data compiled for ESA-listed salmonid populations as part of the NWFSC's technical recovery planning efforts. The database contains data collected by co-managers (WDFW, ODFW, IDFG, and Tribes) and compiled in cooperation with NWFSC staff for: spawning abundance, age structure of wild spawners, fraction of natural spawners that are of wild origin, and the reduction in spawning abundance due to harvest. For some populations, additional data fields are also available. Abundance of ESA-listed salmonids.

The Northwest Fisheries Science Center's (NWFSC) Salmon Population Summary (SPS) database provides public access to demographic data compiled for ESA-listed salmonid populations as part of the NWFSC's technical recovery planning efforts. The database contains data collected by co-managers (WDFW, ODFW, IDFG, and Tribes) and compiled in cooperation with NWFSC staff for: spawning abundance, age structure of wild spawners, fraction of natural spawners that are of wild origin, and the reduction in spawning abundance due to harvest. For some populations, additional data fields are also available. The data correspond to the populations identified by the NMFS Technical Recovery Teams, and are used in part to assess population and ESU-level recovery criteria for many listed ESUs. Most importantly, this data is critical for informing 5 year ESA salmon reviews, and makes 5 year status review data available to the public. Abundance of ESA-listed salmonids.

This data is out of date, no longer updated, and may contain inaccurate information, please see Salmonid Population Monitoring Areas - California - CMP [ds3001].The California Monitoring Plan is the most comprehensive program to date that provides a complete understanding of Californias salmon and steelhead populations, utilizing statistically-rigorous modeling in combination with a variety of in-river sampling and surveys methods. CDFW and NOAA Fisheries are leading the implementation of this Plan from Californias northern border with Oregon south to its board with Mexico. This monitoring strategy was designed to estimate populations of anadromous salmonids in coastal streams, and is being currently expanded to include the anadromous rivers of Central Valley.For more detail on the Klamath-Trinity River systems, visit the links below.https://www.wildlife.ca.gov/Conservation/Fishes/Chinook-Salmon/Anadromous-Assessment

This data is out of date, no longer updated, and may contain inaccurate information, please see Salmonid Population Monitoring Areas - California - CMP [ds3001].The California Monitoring Plan is the most comprehensive program to date that provides a complete understanding of Californias salmon and steelhead populations, utilizing statistically-rigorous modeling in combination with a variety of in-river sampling and surveys methods. CDFW and NOAA Fisheries are leading the implementation of this Plan from Californias northern border with Oregon south to its board with Mexico. This monitoring strategy was designed to estimate populations of anadromous salmonids in coastal streams, and is being currently expanded to include the anadromous rivers of Central Valley.For more detail on the Klamath-Trinity River systems, visit the links below.https://www.wildlife.ca.gov/Conservation/Fishes/Chinook-Salmon/Anadromous-Assessment

This data is out of date, no longer updated, and may contain inaccurate information, please see Salmonid Population Monitoring Areas - California - CMP [ds3001].The California Monitoring Plan is the most comprehensive program to date that provides a complete understanding of Californias salmon and steelhead populations, utilizing statistically-rigorous modeling in combination with a variety of in-river sampling and surveys methods. CDFW and NOAA Fisheries are leading the implementation of this Plan from Californias northern border with Oregon south to its board with Mexico. This monitoring strategy was designed to estimate populations of anadromous salmonids in coastal streams, and is being currently expanded to include the anadromous rivers of Central Valley.For more detail on the Klamath-Trinity River systems, visit the links below.https://www.wildlife.ca.gov/Conservation/Fishes/Chinook-Salmon/Anadromous-Assessment

This data is out of date, no longer updated, and may contain inaccurate information, please see Salmonid Population Monitoring Areas - California - CMP [ds3001].The California Monitoring Plan is the most comprehensive program to date that provides a complete understanding of Californias salmon and steelhead populations, utilizing statistically-rigorous modeling in combination with a variety of in-river sampling and surveys methods. CDFW and NOAA Fisheries are leading the implementation of this Plan from Californias northern border with Oregon south to its board with Mexico. This monitoring strategy was designed to estimate populations of anadromous salmonids in coastal streams, and is being currently expanded to include the anadromous rivers of Central Valley.For more detail on the Klamath-Trinity River systems, visit the links below.https://www.wildlife.ca.gov/Conservation/Fishes/Chinook-Salmon/Anadromous-Assessment

This data is out of date, no longer updated, and may contain inaccurate information, please see Salmonid Population Monitoring Areas - California - CMP [ds3001].The California Monitoring Plan is the most comprehensive program to date that provides a complete understanding of Californias salmon and steelhead populations, utilizing statistically-rigorous modeling in combination with a variety of in-river sampling and surveys methods. CDFW and NOAA Fisheries are leading the implementation of this Plan from Californias northern border with Oregon south to its board with Mexico. This monitoring strategy was designed to estimate populations of anadromous salmonids in coastal streams, and is being currently expanded to include the anadromous rivers of Central Valley.For more detail on the Klamath-Trinity River systems, visit the links below.https://www.wildlife.ca.gov/Conservation/Fishes/Chinook-Salmon/Anadromous-Assessment

This data is out of date, no longer updated, and may contain inaccurate information, please see Salmonid Population Monitoring Areas - California - CMP [ds3001].The California Monitoring Plan is the most comprehensive program to date that provides a complete understanding of Californias salmon and steelhead populations, utilizing statistically-rigorous modeling in combination with a variety of in-river sampling and surveys methods. CDFW and NOAA Fisheries are leading the implementation of this Plan from Californias northern border with Oregon south to its board with Mexico. This monitoring strategy was designed to estimate populations of anadromous salmonids in coastal streams, and is being currently expanded to include the anadromous rivers of Central Valley.For more detail on the Klamath-Trinity River systems, visit the links below.https://www.wildlife.ca.gov/Conservation/Fishes/Chinook-Salmon/Anadromous-Assessment

WDFW SPI wild salmonid populations

SPI natural origin spawner abundance metrics and indicators data