The age, growth and reproduction of 26 fish species found in Yuqiao reservoir were examined during September 1987 to September 1988. The vertebral bones and scales of total 1049 individuals of fish were analyzed for the identification of their ages and body lengths. The spawning times, absolute fecundities, age structures of breeding population, and spawning types of fish were also studied. It has been found that the spawning times were mainly in spring (March to May)and summer (June to August); different s...