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一、引言鲫鱼是重要的经济鱼类之一,它有极强的适应能力,在各种淡水水域内,几乎都有它的踪迹,它的肉味鲜美,很受人们欢迎,是渔业生产的重要对象。但鲫鱼存在个体小、刺多肉少的缺点,因此对鲫鱼的生物学进一步研究“扬长去短”对发展渔业生产具有重要的意义。多年来许多鱼类学工作者对鲫鱼做了大量工作。如1958年刘桐身介绍了鲫鱼。1959年余志堂等对黑龙江流域鲫鱼种群作过研究,同年陈佩薰研究了梁子湖的鲫鱼。1977年中
I. INTRODUCTION Crucian carp is one of the important economic fishes. It has very strong adaptability. It has almost all its trace in all kinds of freshwater waters. Its meat taste is delicious and very popular. Important object However, crucian carp has the shortcomings of small individual and less flesh and more meat, so further study on the biology of crucian carp is of great significance to the development of fishery production. Many fishians have done a lot of work on crucians for many years. As introduced in 1958 Liu Tong body carp. In 1959, Yu Zhitang et al. Studied the population of crucian carp in Heilongjiang River basin. In the same year, Chen Peixun studied the carp of Liangzi Lake. Mid-1977