近太湖新银鱼个体虽小 ,生命周期只有 1年 ,但它却在湖北省徐家河水库成为最大的鱼类优势种群 ,形成较大的生产量 ,这是它所具有的独特生物学特性而决定的。经过多年研究 ,特别是通过对1 995年 5月至 1 996年 4月每月采的近太湖新银鱼的样本分析和研究发现 ,与同时生活在该水库的其它硬骨鱼类相比 ,近太湖新银鱼在繁殖方面表现出广泛的繁殖策略。主要表现为 :生殖腺成熟发育时间短 ,完成卵黄沉积的大生长期只需 50d左右 ;繁殖季节早 ,最早的繁殖时间为每年的 2～ 3月 ,繁殖高峰期为 4月中旬 ;繁殖力高 ,单位体重的怀卵量高出该水库其它鱼类 ,平均相对怀卵量为 4 40～ 1 2 2 3粒 /g ;繁殖周期短 ,仔鱼孵出后经过 1 0月即可成熟产卵 Although the individual is close to Taihu Lake in recent years, its life cycle is only one year. However, it has become the largest dominant species of fish in the Xujiahe Reservoir in Hubei Province, resulting in a large production volume, which is determined by its unique biological characteristics of. After many years of research, especially through the sample analysis and study of the monthly Nelumbo nucifera collected from May 1995 to April 1996, it is found that, compared with other teleosts living in the reservoir at the same time, The new silverfish in Taihu Lake shows a broad breeding strategy. Mainly as follows: the development of gonadal maturation time is short, the completion of the large growth of egg yolk deposition only 50d; breeding season early, the earliest breeding time for 2 to 3 years a year, the peak breeding season for mid-April; high fertility, unit The weight of fecundity is higher than that of other fish in this reservoir, and the relative relative fecundity is 40 ~ 1 2 2 3 / g. The reproductive cycle is short and larvae mature after 10 months after hatching