The Water Resources Division's Surface Water Assessment Section oversees the protection of the quality of surface waters throughout the State of Michigan.
WEIGHT = 4.09 pounds Largemouth Bass Weight. The formula to calculate the weight for a Largemouth Bass that is 20 inches long and has a girth of 15 inches is as follows. Largemouth Bass have a shape factor of 1050. WEIGHT = LENGTH x GIRTH2 / SHAPE FACTOR. WEIGHT= 20 x (152) / 1050.
The biggest smallmouth bass catch on record at 8 pounds, 8 ounces came from Scotts Run Lake in Berks County, caught by Robert T. Steelman of Havertown. The state's rock bass record goes back to 1971 when David L. Weber of Lake City caught a 3-pound, 2-ounce fish in Elk Creek in Erie County.