The Japanese eel,Anguilla japonica,is one of the most widely cultivated fishes in China and Japan.Because eel aquaculture is capture based,where glass eels are caught in the wild for aquaculture seed,glass eel shortage has increasingly become a serious problem.To solve this problem,the production of glass eels under culture conditions has been attempted for more than 30 years.This paper reviewed the research of reproductive biology on the Japanese eel:Some enhanced training to bloodstock before maturation a...