On this website, there is this reference to an intended pun on the name of this character
The Japanese character for 'KA' in Fukada means shark (which explains her particular teeth).
What would be the character used to do such a pun?
Actually, the website should have said
The Japanese character for 'FUKA' in Fukada means shark
Apparently her name is 鱶田 久美子 (and 鱶【ふか】 means "(large) shark").