anaesthetics for rotifers

[Dieter at Mizzou1.Missouri.edu Waloßek]

Dear list-members,

I am currently working on sessile rotifers and I have a problem concerning
their ability to retract their head when disturbed. I need extended
specimen for fixation and I am therefore searching for a method to
anaesthetize the animals, which prevents their contraction reflex. Common
methods like alcohol, Na2S2O4 (sodium di-thionid) and C3H5NO (acryl amide)
have not yielded satisfactory results. I would greatly appreciate any idea
or comment concerning this problem.

Please send your responses to the following email adress:
helge.fabritius at biologie.uni-ulm.de

Thank you,
with warmest regards
Helge Fabritius
University of Ulm, Helmholtzstrasse 20, D-89081 Ulm
Tel. xx49-(0)731-50-31003, Fax (0)731-50-31009
email: helge.fabritius at biologie.uni-ulm.de