troutdude
Moderator
Hey gang; I have question. Is it true that you can spot a hold-over hatchery trout, by the horizontal lines on it's tail fin? Much like the rings, in a tree, telling the age?
For example...the tail fin of the middle fish in the pic below, starts out darkish. Then, there's stretch that's lighter in color. Then, the very end is darker again. So would that make that fish a one-year hold-over, starting to grow another darker ring in it's second year of growth?
P.S. All 3 fish, were caught on the same day. The top one, is a cookie cutter hatch 'bow. The middle fish, was an 18 inch hold-over. The bottom one, a 19" fattie.
For example...the tail fin of the middle fish in the pic below, starts out darkish. Then, there's stretch that's lighter in color. Then, the very end is darker again. So would that make that fish a one-year hold-over, starting to grow another darker ring in it's second year of growth?
P.S. All 3 fish, were caught on the same day. The top one, is a cookie cutter hatch 'bow. The middle fish, was an 18 inch hold-over. The bottom one, a 19" fattie.