Of the three black bass species present in the lake, largemouth are by far the most abundant. Stocking of Florida strain largemouth in the 1970's improved the lake's potential for growing big bass. Typical largemouth caught by anglers weigh about 2 to 3 pounds, although 10-pounders are not uncommon. Larger sized fish caught and released during tournaments run 6 to 8 pounds. The lake record largemouth is an unusually big 16.02 pounds.
Spotted bass rank second in abundance to largemouth, followed by smallmouth.
Both smallies and spots are more prevalent in the rocky lower lake. The lake record smallmouth is 6.4 pounds. The average size spotted bass measures a respectable 12 to 14 inches. The cool, well-oxygenated water of Possum Kingdom supports a quality striped bass population. Although there is evidence of sporadic natural reproduction, it has little influence on abundance and the fishery is sustained almost entirely by annual fingerling stocking.