Does light influence speed of development ?

[David W. Raible]

In article <3809at$dsd at hermod.uio.no>, eirik.madsen at fys.uio.no (Eirik
Madsen) wrote:

> I am a student working with the development of Zebrafish embryos in 
> ELF magnetic field. In some experiments I found that the illuminance (light)
> was three times higher in one group than in the other (520 lux vs. 150 lux).
> Experiments indicates that the embryo -development went faster in 
> the group with the highest illuminance.

It's clear that temperature does influence zf development (see a recent
article by Chuck Kimmel in the Zebrafish Science Monitor).  Could it be
that your embryos under higher illumination were just warmer?
-- 
David W. Raible
Institute of Neuroscience
University of Oregon
Eugene, OR 97403-1254