NANFA-- snorkeling, snapping sound, redhorses

Mark (
Wed, 8 Aug 2001 08:38:33 -0400

I have observed this in a shorthead redhorse in an aquarium. It's loud.
You could hear it all the way across the room. The fish was only about six
inches long. Kind of sounds like a rock striking another rock. That's
what I thought is was at first, but I started watching and caught him it
the act. I think it was just mouth movement. Do they have otoliths or
some sort of membrane that could produce the sound?

Columbus Ohio USA <))><

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