Hi Guys
I run TASTAG for a few years,
Fish are tagged for the sole purpose of reseach, if the fish retains the tag and is recaptured, even if it is only 10 hours later and 5km away there is valuable info to learn from that and if that fish is at that point is retained by someone that wants a fresh feed the fish has served 2 purposes.
If a fish is swimming with a tag for 10 years and dies on the bottom somewhere 500km from point of being tagged it has served no purpose other than what nature intended.
The only thing any tagging organisation would ask is PLEASE phone the toll free number on the tag and supply as much info as you can (even if you only found the tag on the last mouthful.)
cheers
blaze