1. Sex Determination in Fishes 2. Reproductive Neuroendocrinology in Teleost Fishes 3. Testicular Function and Hormonal Regulation in Fishes 4. Regulation of Ovarian Development and Function in Teleosts 5. Thyroid Hormones and Reproduction in Fishes 6. Stress and Reproduction in Fishes 7. Hormones and Sexual Behavior of Teleost Fishes 8. Neuroendocrine Regulation in Sex-Changing Fishes 9. Hormonally Derived Sex Pheromones in Fishes 10. Reproduction in Extant Agnathan Fishes: Lampreys and Hagfishes 11. Hormones and Reproduction in Chondrichthyan Fishes 12. Hormones and Reproduction of Sarcopterygian Fishes 13. Environmental Influences on Hormones and Reproduction in Fishes