Help with zebrafish breeding problem

Matthew Bonnan MF-Bonnan at
Tue Oct 21 11:17:51 EST 2003

I am using zebrafish in my embryology course, and have been using 
the low but steady method of embryo collection using a light timer to 
get the zebrafish to spawn every morning.  This has worked great until 
this week when I was away at a meeting and the janitor left the lights 
on in the lab for at least 48-72 hours!  Now, no embryos are being 
spawned and our first lab using the embryos is of course this week on 
Thursday.  I have put the fish back on the light schedule, but would 
someone know how long it will be before they start producing embryos 

This has been very frustrating!
Thank you for any information.

Matthew F. Bonnan, Ph.D.
Department of Biological Sciences
Western Illinois University
Macomb, IL 61455
MF-Bonnan at
mbonnan at

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