This paper sums up and discusses the progress in study on eel species, distribution, spawning grounds and artificial breeding and so on.

文中总结了鳗鲡的生活史、种类、分布、产卵地、人工育苗技术的研究情况，并分别进行了讨论。

youdao

This paper sums up and discusses the progress in study on eel species, distribution, spawning grounds and artificial breeding and so on.

文中总结了鳗鲡的生活史、种类、分布、产卵地、人工育苗技术的研究情况，并分别进行了讨论。

youdao