What I believe to be a RESxGSF hybrid. There are supposed to be only RES in this pond but either some of the stocked RES had some GSF genes or a GSF swam up my overflow pipe and contaminated the pond. I have caught a few GSF looking fingerlings, quite a number or RES fingerlings, and some that appear to be hybrids.
The first two pictures are of the same fish and I believe it to be one of the RESxGSF hybrids. It was caught by hook and line in this RES only forage pond.
The third picture is a hybrid caught out of my main pond that I THINK...... key word think......... is one of these hybrids I moved from this forage pond to the main pond at an earlier time and it is all grown up.