I thought about the coorilation between jack numbers and adult returns that someone on here had try to predict furture runs with.
So I did some research and built this chart from data on the Coumbia River DART page.
Jack (age 2) numbers are compared with returns two years later representing the age class 4 (average adult age). There seems to be an interesting coorilation.
So I did some research and built this chart from data on the Coumbia River DART page.

Jack (age 2) numbers are compared with returns two years later representing the age class 4 (average adult age). There seems to be an interesting coorilation.