columbia river basin fish and wildlife program annual ...

PROJECTNUMBERTITLEPROJECT STATUSSCHEDULE AND MILESTONES88-141 Biological Manipulation ofMigration Rate and RecoveryRate - The Use of AdvancedPhotoperiod to AccelerateSmoltification in YearlingChinook Salmon - NMFSProiect Officer: W. MaslenDate Initiated: May 1988ResultsfConclusions: Advanced photoperiodtreatment in combination withholding fish in warmer water for aweek prior to release from DworshakHatchery results in a measurable decreasein travel time to Lower Granite,Little Goose, and McNary Dams. The 19881. FY 1991 and beyond: Anticipate advancedphotoperiod and temperature treatment experimentationat additional hatchery siteswith evaluation based on data from returningadults.2. Implement photperiod and temperature treatment,where practical, based on data fromreturning adults.Qbiectiveq: Determine theand 1989 Annual Reports are available.duration of exposure to advancedphotoperiod and temperature(before release fromthe hatchery) treatments tooptimize the migration rate ofyearling chinook through theSnake River and improve fishguiding efficiency at dams.Is089-107 Development of EpidemiologicalMethods for Use in QuantifyingSurvival Relationships fromPIT-Tag Releases of Salmon andDate Initiatd October 1989Results/Conclusions: None at this time.1. FY 1991: Complete Phase I tasks.2. FY 1991 and beyond: Proceed with Phase IIdependent upon the results of Phase I.Steelhead Smolts - UWProiect Officer: P. PoeDbiectives:1. Phase I: Develop epidemiologicalmodels and regressionestimators, tests of survivalrelationships, and tests ofassumptions and goodness-of-fitstatistics. Determine locationand number of required PIT-tagfacilities.