Freshwater Fish Identification
Other names: Yellowbelly sunfish, redbreasted bream
This sunfish possesses a yellow belly that is sometimes an orange or a rusty
color. It might have been better named the longear, as its opercle flap or ear
is considerably longer than the opercle flap of the longear sunfish. In adults,
the ear often reaches a length of one inch or more; it is narrow and usually not
wider than the eye. The lower margin of the flap is usually pale. The redbreast
is one of our larger sunfish, occasionally attaining weights of one pound.
At one time, this sunfish was raised by state hatcheries and widely
distributed. Good populations of large redbreast can be found in the clear
streams of central Texas, primarily in the San Marcos area.
In typical sunfish fashion, the redbreast spawns in beds or colonies on sand
or gravel where the water is one to three feet deep. After hatching, the young
may remain schooled for several weeks before scattering. Adults feed on insects,
snails, crayfish, and small fish.
Redbreast sunfish were introduced into Texas from their original range, the
streams of the eastern US that drain into the Atlantic Ocean. This species now
occurs throughout the eastern and southern parts of Texas as far west as some
streams of the Pecos drainage.
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