Hello, everyone.

Has anyone out there used MS-222 (C9H11O2N + CH3SO3H) to euthanise fish
before taking tissue samples for isotope analysis?  The Animal Care and
Use Committee at my university wants me to use this method instead of
freezing my tiny fish on dry ice.

I'd just as soon use the least traumatic method possible for the little
guys, of course, but I haven't seen any references to using MS-222 for
euthanasia in the SIA literature.

If you've used this stuff with great success, *or* know for sure that its
use would mess up the isotope ratios (which I suspect), would you please
let me know ASAP so that I can satisfy the powers that be?

Thanks for your help!

     Karen Gaines.

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Karen H. Gaines               "The Libella [dragonflies] do set forth
Doctoral Candidate        Nature's elegancy beyond the expression of Art."
University of New Mexico              - Tho. Mouffet, 1658
Department of Biology                 The Theater of Insects
MSCO3 2020
1 University of New Mexico
Albuquerque, NM 87131-0001  U.S.A.
Phone: (505) 277-4969, FAX: 277-0304
E-mail: [log in to unmask]