Melissa A Chatham Catfish Genetics Research (This person is no longer with ARS) Publications (Clicking on the reprint icon will take you to the publication reprint.) Variants of Microcystin in Southeastern USA Channel Catfish (Ictalurus puntctatus ralfinesque) Production Ponds - (Peer Reviewed Journal) Zimba, P.V., Boue, S.M., Chatham, M.A., Nonneman, D.J. 2002. Variants of Microcystin in Southeastern USA Channel Catfish (Ictalurus puntctatus ralfinesque) Production Ponds. International Society Of Limnology 28:1163-1166.       Last Modified: 05/23/2013