Out of date: Primary source data made available to SacPAS does not include the specificity needed to apply the Frank Fisher length-at-date model to categorize Chinook into "older" and "fry/smolt". Alternative criteria are applied to categorize run-identified Chinook:
- "older" juvenile: 8/1-10/31 sum of winter and spring, 11/1-7/31 winter only
- "fry/smolt" juvenile: 8/1-10/31 fall only, 11/1-7/31 sum of late-fall, fall and spring runs.