Name: Robin G.
Monday, September 30, 2002
How do you tell the difference between male and female
Generally, it can only be told by inspecting the anal opening during mating
season. Also, the males, when nesting, tend to turn slightly more pale and
may have red eyes. Females may be bulging with eggs.
Females grow larger than males. The largest male is known to be about 8
pounds, where females can be larger than 22 pounds.
----Nathan A. Unterman
Your question has one big problem! There are three dozen different fresh and salt
water "bass" species [The Temperate Bass Family] common in and around North America.
Some are dimorphic and others can only be sexed by behavior or genetial during spawning.
Both sexes can assume different general sizes depending on the time of year.
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Update: June 2012