How do I tell a male largemouth bass from a female?
Check SizeCheck the size of a largemouth bass. If the bass is over eight pounds, then the fish is almost certainly a female. Size only works to identify bass that are over eight pounds.Urogenital OpeningExamine the urogenital opening of the bass, on the underside near the back fin. While it can be hard to tell apart, in a male bass the opening is a little more circular while the female openings are more elliptical. The two still look very similar, and even with this method they can often be misidentified.Mating SeasonSqueeze the largemouth bass during mating season, which generally occurs between December and May. A slight squeeze around the vent can cause males to exude “milt,” a milky white substance.
