anaesthetics for rotifers

[Robin Leech]

Try a very weak solution of novacaine or equivalent.  I have used this for
many inverts, and if I use the right concentration, it works perfectly -
everything from snails on down to wee critters.
Robin Leech
----- Original Message -----
From: "Dieter Waloßek" <dieter.walossek at BIOLOGIE.UNI-ULM.DE>
To: <TAXACOM at USOBI.ORG>
Sent: Friday, September 08, 2000 3:09 AM
Subject: anaesthetics for rotifers


> 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