Estimating Survival and Migration Route Probabilities of Juvenile Chinook Salmon in the Sacramento–San Joaquin River Delta

摘要: Abstract Juvenile Chinook salmon Oncorhynchus tshawytscha emigrating from natal tributaries of the Sacramento River must negotiate Sacramento–San Joaquin Delta, a complex network natural and man-made channels linking with San Francisco Bay. Natural processes water management actions affect fractions population using different migration routes through delta survival within those routes. However, estimating these demographic parameters is difficult traditional mark–recapture techniques, which depend on physical recapture fish (e.g., coded wire tags). Thus, our goals were to (1) develop model explicitly estimate route probabilities for each four delta, (2) link route-specific population-level survival, (3) apply this first available acoustic telemetry data smolt delta. The point sur...