Pond Boss Forums STOCKING A NEW POND Types of fish to choose Yellow Perch/Smallmouth or Largemouth Bass???

sexing LMB:

Attempts have
been made to sex adult largemouth bass by looking at the shape of the scaleless area around the
urogenital opening. The scaleless area tends to be more or less circular in males and more elliptical in
females. This method frequently leads to misidentification of sex. Sexing of brood fish can be done in
LARGEMOUTH BASS WHITE PAPER (MARCH 29, 2000) PAGE 5
the spring prior to spawning when the female has a distended abdomen, and a red swollen protruding
vent. The males may be emitting milt. The most accurate way to sex largemouth bass is to insert a
small tube into the vent and look for eggs or milt.

I think I'll go with the latter approach.