atomfullerene t1_isom395 wrote
Reply to comment by czyivn in How do fishes get into isolated inland lakes in the first place? and why don't we see more divergent evolution / speciation given the separation of each group of fishes from each other? by I-mean-Literally
How long ago were they stocked with the other fish? My bet is that you had a few juvenile flathead sneak in with the other fish when they were stocked. It takes them 4-5 years to mature, and it might take a few generations before the ponds had enough in them for them to be noticeable.
czyivn t1_isoyjvy wrote
The only point it really makes sense is during the stocking with blue catfish. Those got big much sooner, though. We were catching 2-3 lb blue cats while the flatheads were still a quarter pound or less. So having it happen from that single stocking event doesn't make a ton of s ense to me, but I guess it's possible if they grow much slower than blue catfish.
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