The Japanese eel(Anguilla japonica) is one of the most important species
of aquaculture industry in Taiwanand the glass eels are completely at
present caught from wild. Due to environmental changes, marine pollution
and overfishing phenomenon, whole-year catches of glass eel in recent
years are declining. Correlated industries are deficient in a large
number of glass eel, so the development of cultivation and artificial
propagation techniques are in urgent need. Former studies indicated that
eels fertilize in deep ocean, however wild eels caught in their
prepubertal stage.The objective were to cultivate Japanese eels in a 4-
meter-depth tank, and artificially induce sexual maturity of the eels
u s i n g h u m a n c h o r i o n i c g o n a d o t r o p i n ( H C G ) a n d s a l m o n p i t u i t a r y
extracts(SPE). With such conditions we can discover how to get eel
fertilized oocytes.With such conditions we can discover how to get eel
fertilized oocytes in good quality.