The 11th ISRPF aims to stimulate discussions and exchange of knowledge about the most recent findings in the reproductive physiology of fish and related areas, focusing on “New frontiers in reproductive diversity in a changing environment”. The 11th ISRPF will continue the tradition of a compact symposium without parallel sessions, enabling the participants to attend all invited plenary lectures and selected oral presentations. This structure also allow efficient interaction among scientists from the different areas of fish reproductive physiology and also among scientists and students, creating, therefore, a favorable atmosphere for scientific discussions, networking and the establishment of collaborations. Posters will be displayed during the entire duration of the meeting in order to promote maxing interaction and discussion, although specific poster sessions will be scheduled. The organizers will do their utmost to facilitate the participation of students from all continents, particularly from developing countries. The symposium proceedings will be published in General and Comparative Endocrinology (Elsevier), which has ~2.6 impact factor.