In March 2008, Professor Yoshitaka Nagahama officially retires from his position at the National Institute for Basic Biology in Okazaki, Japan. To honor and celebrate Professor Nagahama’s extensive contributions to the field of fish reproduction, we invite you to participate in an international symposium on “Sex Determination and Gametogenesis in Fish: Current Status and Future Challenges”. The symposium will be held on the University of Hawaii’s Manoa campus in close proximity to the hotels and beaches of Waikiki in Honolulu. The Symposium will be held directly after the First World Congress on Reproductive Biology and the Annual Meeting of the Society for the Study of Reproduction, which are being held in Kona, Hawaii May 25-30. Information on these meetings is available at http://www.ssr.org/