How do you tell between a male and female Walleye without looking between their fins?

[DennisW]

[blue][size 2]Generally speaking, in springtime the male walles are pretty small in comparison to the females, and they're fairly uniform in size. So size is a good indicator. Also, females that have spawned have a different shaped anus--it's shaped like a keyhole for skeleton key rather than oval like males. However, this isn't always obvious. If a fish caught in March is bigger than a couple pounds and is pretty fat, it's a female. If it's a slender cigar, it's a male.[/size][/blue]