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铜鱼 Coreius heterodon(Bleeker)广泛分布于长江水系,是较典型的河道流水性鱼类。在长江干流中、上游及其主要支流里,它是重要的捕捞对象,在某些地区,其渔捞量终年占总渔获之首位。因其肉味鲜美,含脂量高,被誉为上等食用鱼。1963年易伯鲁等描述了铜鱼卵和胚胎发育特点。60年代初,中国科学院水生生物研究所在长江干流进行家鱼产卵场调查时,曾
Coreius heterodon (Bleeker) widely distributed in the Yangtze River water system, is a typical river water fish. It is an important fishing target in the upper reaches of the Yangtze River and its main tributaries, and in some areas it accounts for the largest proportion of total catch in some areas. Because of its delicious meat, high fat content, known as the first-class food fish. In 1963, et al. Described the characteristics of copper fish eggs and embryos. In the early 1960s, when the Institute of Hydrobiology, Chinese Academy of Sciences conducted a survey of fish spawning grounds in the main stream of the Yangtze River,