Not only that, but believe it or not, they do(if I'm not mistaken) breathe air. I have kept eels alive for days. So long as I kept them cool and rinse the bucket once or twice a day. The important thing to remember is to keep them moist. Even with a small amount of water, they will drown in their own slime. Hope this helps.
[This message has been edited by Gary Boudreau (edited 09-28-2000).]