Shaun Thompson’s scientific contributions

California’s coastal salmon and steelhead populations are currently listed as either threatened or endangered under the federal and state Endangered Species Acts; both require monitoring to provide measures of recovery. Since 2004 the California Department of Fish and Wildlife and NOAA Fisheries have been developing a monitoring plan for California’s coastal salmonids (the California Coastal Salmonid Monitoring Plan- or CMP). The CMP monitors the status and trends of salmonids at evolutionarily significant regional scales and provides population level estimates. For the CMP, data to evaluate adult populations are collected using a spatially balanced probabilistic design (e.g., Generalized Random Tesselation Stratified- or GRTS). Under this scheme a two-stage approach is used to estimate status. Each year regional redd surveys (stage 1) are conducted in stream reaches in a GRTS sampling design at a survey level of 15% of available habitat or a minimum of 41 reaches, whichever results in fewer reaches. Spawner: redd ratios are derived from Life Cycle Monitoring (LCM) stations (stage 2) where “true” escapement is estimated using capture-recapture methods. These ratios are used to estimate regional escapement from expanded redd counts. The CMP was first implemented in California in 2008- 19, using the methods described above, to estimate salmonid escapement for the Mendocino coast region. Here we present the results of the seventh year (2014–15) of this monitoring effort and discuss our findings in the context of expanding the CMP to all of coastal California. We present escapement data for major portions of the California Coastal (CC) Chinook Salmon Evolutionarily Significant Unit (ESU), the Central California (CCC) Coho Salmon ESU, and the Northern California (NC) Steelhead Distinct Population Segment (DPS). In addition, we present 2014–15 data from five LCM stations, in which multiple stages of salmonid life history data are collected, and combine this information with previous year’s data to evaluate status and trends for Coho Salmon and steelhead

California's coastal salmon and steelhead populations are currently listed as either threatened or endangered federal or state endangered species acts; both require monitoring to provide measures of recovery. Since 2004 the California Department of Fish and Wildlife (formerly California Department of Fish and Game) and NOAA Fisheries have been developing a monitoring plan for California's coastal salmonids (the California Coastal Salmonid Monitoring Plan-or CMP). The CMP monitors the status and trends of salmonids at evolutionarily significant regional scales and provides population level estimates. For the CMP, data to evaluate adult populations are collected using a spatially balanced probabilistic design (e.g., Generalized Random Tesselation Stratified-or GRTS). Under this scheme a two-stage approach is used to estimate status. Each year regional redd surveys (stage 1) are conducted in stream reaches in a GRTS sampling design at a survey level of 15% of available habitat or a minimum of 41 reaches, whichever results in fewer reaches. Spawner: redd ratios are derived from smaller scale census watersheds (stage 2) where " true " escapement is estimated using capture-recapture methods. These ratios are used to estimate regional escapement from expanded redd counts. The 2008–09 season was the first implementation of the CMP in the state, using the methods described above, to estimate salmonid escapement for the Mendocino coast region. Here we present the results of the sixth year (2013–

California’s coastal salmon and steelhead populations are listed under California and Federal endangered species acts; both require monitoring to provide measures of recovery. Since 2004 the California Department of Fish and Game and NOAA Fisheries have been developing a monitoring plan for California’s coastal salmonids (the California Coastal Salmonid Monitoring Plan- or CMP). The CMP monitors the status and trends of salmonids at evolutionarily significant regional scales and provides population level estimates. For the CMP, data to evaluate adult populations are collected using a spatially balanced probabilistic design (e.g., Generalized Random Tesselation Stratified- or GRTS). Under this scheme a twostage approach is used to estimate status. Each year regional redd surveys (stage 1) are conducted in stream reaches in a GRTS sampling design at a survey level of 15% of available habitat or a minimum of 41 reaches, whichever results in fewer reaches. Spawner: redd ratios are derived from smaller scale census watersheds (stage 2) where “true” escapement is estimated using capture-recapture methods. These are used to estimate regional escapement from expanded redd counts. In 2008–09 we applied the results of our previous studies to estimate salmonid escapement for the Mendocino coast region, the first implementation of the CMP in the state. Here we present the results of the fifth year (2012–13) of this monitoring effort and discuss our findings in the context of expanding the CMP to all of coastal California. We discuss sample frame development, sample size, and present escapement data for major portions of the California Coastal (CC) Chinook Salmon Evolutionarily Significant Unit (ESU), the Central California (CCC) Coho Salmon ESU, and the Northern California (NC) Steelhead Distinct Population Segment (DPS). In addition, we present 2012–13 data from three life cycle monitoring streams and combine this information with previous year’s data to evaluate status and trends for coho salmon and steelhead

California’s coastal salmon and steelhead populations are listed under California and Federal endangered species acts; both require monitoring to provide measures of recovery. Since 2004 the California Department of Fish and Game and NOAA Fisheries have been developing a monitoring plan for California’s coastal salmonids (the California Coastal Salmonid Monitoring Plan- or CMP). The CMP monitors the status and trends of salmonids at evolutionarily significant regional scales and provides population level estimates. For the CMP, data to evaluate adult populations are collected using a spatially balanced probabilistic design (e.g., Generalized Random Tesselation Stratified- or GRTS). Under this scheme a twostage approach is used to estimate status. Each year regional redd surveys (stage 1) are conducted in stream reaches in a GRTS sampling design at a survey level of 15% of available habitat or a minimum of 41 reaches, whichever results in fewer reaches. Spawner: redd ratios are derived from smaller scale census watersheds (stage 2) where “true” escapement is estimated using capture-recapture methods. These are used to estimate regional escapement from expanded redd counts. In 2008-09 we applied the results of our previous studies to estimate salmonid escapement for the Mendocino coast region, the first implementation of the CMP in the state. Here we present the results of the fourth year (2011─12) of this monitoring effort and discuss our findings in the context of expanding the CMP to all of coastal California. We discuss sample frame development, sample size, and present escapement data for major portions of the California Coastal (CC) Chinook Salmon Evolutionarily Significant Unit (ESU), the Central California (CCC) Coho Salmon ESU, and the Northern California (NC) Steelhead Distinct Population Segment (DPS). In addition, we present 2011─12 data from three life cycle monitoring streams and combine this information with previous years’ data to evaluate status and trends for coho salmon and steelhead