THIS video by Andy Thomsen of Andysfishing on Youtube shows how valuable fish tagging can be in providing useful data on the migration of sportfish.
In this case Andy caught a tagged barramundi (on line and video) in Queensland’s Proserpine area. According to fish tagging organisation SunTag, the barra had travelled quite some distance before recapture and re-release.
https://www.youtube.com/watch?v=02wgYMtYtoI&feature=youtu.be