Memo: September 10, 1996
To: William Stelle, NMFS
From: Richard W. Zabel, University of Washington
Re: Snake River yearling chinook travel time estimation
CC: Michael Schiewe (NMFS), Dave Askren (BPA), Jim Geiselman (BPA)

Using the CRiSP model, we have recently analyzed 1996 PIT tag data of yearling chinook migrating through the Snake and Columbia Rivers. The model takes into account flow, seasonal, and fish experience effects while moving fish downstream. Using data from the previous seven years to calibrate the model, the predicted travel times for 1996 fish to six observation sites are within one day of the observed travel times.