Gentlemen;
The Bream is a European and Asian carp.
The perch family has a number of members in North America, the Walleye and the Yellow Perch are the catchable members of the family, several small perch are common in the South, most less than 6" long and found only in a minnow seine or minnow trap, most of them are called 'Darters".
Most of the fish called perch or bream in the South are sunfish, even the Large Mouth , Small Mouth and Spotted Bass are sunfish.
The Rio Grande Perch , found over about 1/2 of Texas is even more misnamed, it is a chinchlid, a large family of fishes in Mexico , Central and South America.
A stray fish found in the Rio Grande and some of it's tributaries, is the Dormilon, a fish that looks like a cross between a Large Mouth Bass and a Toad Fish from salt water, but green top, white bottom a mouth full of big teath and scales"the Toad Fish has no scales", it is a good fighter and good eating, I have only caught 10-15 of them below the dam at Falcon Reservoir
Don Rinks