Gubment bream a hybrid? Buddy of mine put hybrids in his lake a long time ago and people he bought them from said the first generation would grow to 5 lbs and the next would be smaller and the next smaller. He said they never saw anything close to 5 lbs but he has caught a lot over 2 lbs. I caught one 1.75 last year out there and it was the biggest one I have ever seen. They look similar to your fish but a little lighter in color. That's what makes me think u caught a male fish doing his thing. I also thought a hybrid fish did not reproduce until I heard my friend telling me about these bream. Who knows, someone may have sold him a bunch of bluegill.