This is a presentation that was given at several conferences in 2005, it details the effects of DMSP on the taste and smell of abalone and what can be done to mitigate it.

1. THE EFFECT OF DIET ON DMSP ACCUMULATION AND TASTE IN SOUTH AFRICAN ABALONE ( Haliotis midae ) Deborah Robertson-Andersson 1 ; A. J. Smit 2 ; S. Peall 3 and Bolton J. J 1 1 Botany Department, U CT 2 School of Biological and Conservation Sciences, UKZN 3 Hearshaw and Kinnes Analytical Laboratory, UCT,

4. Benefits of a mixed algal diet KELP ONLY DIET MIXED ALGAL DIET

6. Abalone Mariculture Operations in South Africa Abalone Mariculture Operations in South Africa Durban Port Elizabeth Cape Town I&J Abalone Atlantic Fishing Sea Plant Products Roman Bay Marine Growers HIK Farm Abagold Aquafarm Development Avuca Abalone Fish Bay Mariculture Jacobsbaai Sea Products West Coast Abalone Port Nolloth Sea Farms Wild Coast Abalone Abaseed

13. If they contain DMSP, where is it accumulated? Top of foot Epipodial frill

15. Abductor muscle preparation Step 1 Step 4 Step 3 Step 2

25. THANK YOU ACKNOWLEDGEMENTS I would like to extend special thanks to the following people and organizations without whose help this project would be impossible: Swedish and South African Collaborative Program I & J Mariculture farm JSP Mariculture farm Wild Coast Abalone Abagold N R F J SP