To my knowledge, none of the tagged fish from previous year were tracked or recaptured returning into the bay systems. Not a single one. Now that is interesting.
That is really interesting! I was just reading this in Texas Saltwater magazine about the flounder spawn.
"Adults return to their original bays and estuaries soon after spawning. However, the yearly migration does reshuffle the deck to some extent; some flounder elope to territories different from where they originated.(3) The spring homecoming is gradual, unlike the large concentrations characteristic of the fall emigration."
Kinda goes with your findings.
Do you work for a research center? My son started working at TPWD Sea Center in Lake Jackson early this past summer and they have been doing more research with flounder since November. Since then he has absolutely fallen in love with flounder and the study of them.