Investigate the Life History of Spring Chinook Salmon and Summer Steelhead in the Grande Ronde River Basin Project Brian Jonasson Oregon Department of Fish and Wildlife
Project Goals Describe and monitor juvenile life history strategies and life-stage survival of spring chinook salmon and steelhead in the Grande Ronde Subbasin Provide baseline natural production and life history information for evaluation of supplementation efforts in the Grande Ronde Subbasin
Juvenile Life History Objectives Spring Chinook Salmon In-basin migration patterns and abundance Survival and migration patterns to mainstem dams Life stage survival rates Use of winter concealment habitat Relationships between rearing habitat and survival and life history patterns
Juvenile Life History Objectives Steelhead In-basin migration patterns and abundance Survival and migration patterns to mainstem dams Proportion of fall migrants that smolt in spring Population characteristics of steelhead in Catherine Creek in summer
Migration Timing and Abundance Spring Chinook Salmon Catherine Creek
Migration Timing and Abundance Spring Chinook Salmon Upper Grande Ronde River
Migration Timing and Abundance Spring Chinook Salmon Lostine River
Migration Timing and Abundance Spring Chinook Salmon Minam River
Survival to Lower Granite Dam Spring Chinook Salmon 2000 Migratory Year
Survival to Lower Granite Dam Spring Chinook Salmon 2001 Migratory Year
Survival to Lower Granite Dam Spring Chinook Salmon 2002 Migratory Year
Survival to Lower Granite Dam Spring Chinook Salmon 2003 Migratory Year
Abundance of Summer Parr Spring Chinook Salmon
Egg to Smolt Survival Spring Chinook Salmon Catherine Creek
Egg to Smolt Survival Spring Chinook Salmon Lostine River
Egg to Smolt Survival Spring Chinook Salmon Minam River
Winter Concealment Spring Chinook Salmon Depth Velocity Substrate Embeddedness Cover Pools were ranked based on:
Winter Concealment Spring Chinook Salmon Catherine Creek
Winter Concealment Spring Chinook Salmon Lostine River
Winter Concealment Spring Chinook Salmon Grande Ronde River
Winter Concealment Spring Chinook Salmon Catherine Creek
Habitat Relationships Spring Chinook Salmon Aquatic habitat inventory Macroinvertebrates Streamflow Habitat variables: Fish variables: Egg to smolt survival Proportion of early and late migrants
Habitat Relationships Spring Chinook Salmon
Limiting Factors Analysis Spring Chinook Salmon Ecosystem Diagnosis and Treatment Method (EDT) Aquatic Habitat Inventory data Habitat relationships
Migration Timing and Abundance Steelhead Catherine Creek
Migration Timing and Abundance Steelhead Grande Ronde River
Migration Timing and Abundance Steelhead Lostine River
Migration Timing and Abundance Steelhead Minam River
Survival to Lower Granite Dam Steelhead Tagged in Spring
Survival to Lower Granite Dam Steelhead Catherine Creek
Survival to Lower Granite Dam Steelhead Grande Ronde River
Survival to Lower Granite Dam Steelhead Lostine River
Survival to Lower Granite Dam Steelhead Minam River
Population Structure Steelhead Catherine Creek
Population Structure Steelhead Catherine Creek
Population Structure Steelhead Catherine Creek
Life History Findings and Management Significance Habitats downstream of the spawning areas are critical rearing areas in fall and winter Deep pools with cover are important for over winter habitat
Life History Findings and Management Significance Local populations exhibit differences in life history, including migration timing within the subbasin and survival to mainstem dams