….”Biologists also found a connection between tarpon habitats in Southwest Florida and those of the Florida Keys.
Anglers sampled two tarpon in Charlotte Harbor during August 2010. Both fish were caught the following spring in the Florida Keys – more than 150 miles away. These tarpon were initially sampled inshore at the end of a spawning season, in close proximity to offshore areas in the Gulf where spawning is presumed to occur.
Sampling of another tarpon showed the fish can travel a similar distance in a shorter time. The tarpon was caught near Islamorada in July 2011, about one month after an angler reeled it in during peak spawning season near Sarasota”….