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Bluegill
Identifying
characteristics: Two dorsal fins with spinous and soft-rayed portions united,
small mouth, long pointed pectoral fins, faint black spot on soft-rayed part
of dorsal fin separates the bluegill from other sunfish, which lack this dorsal
coloration.
This fish enjoys a well-deserved popularity with anglers in the Upper Peninsula.
Many a young angler boasts the delicious bluegill as a first catch, while
seasoned anglers using light tackle find it a valiant fighter. Bluegills favor
warm waters (64 to 70 degrees F) with plenty of cover such as weed beds, submerged
logs, or drop-offs. They usually stay in relatively shallow water, but as
temperatures rise in the summer, large bluegills will head for deeper water.
This fish also provides good winter sport since it remains active all winter
long.
The bluegill spawns in the shallows in the late spring or early summer when
the water temperature reaches 65 degrees F. Males build nesting colonies in
gravel, sand or mud and will guard the eggs and newly hatched fry until they
reach the swimming stage. The young fry eat algae and zooplankton. As they
grow larger, bluegills add small fish, aquatic insects and plant matter to
their diet. The bluegill feeds off the surface of the water the midwaters
and the bottom, where it can be a serious competitor with other bottom feeding
fish. The average adult bluegill is 6 to 8 inches long, although some reach
10 inches. Sexual maturity occurs at 2 to 3 years for males and 3 to 4 years
for females. Average life-span of these fish is 5 to 6 years