Based on the data of three months′ surveys of 45 sampling stations along the north-central coast spawning ground of Zhejiang Province from April to June 2008,the species composition and spatial distribution of fish eggs,larvae and juveniles were analyzed.The results showed that there were 64 taxa of ichthyoplankton,of which 47 were identified to species,17 were identified to family.They belonged to 47 genera,36 families and 13 orders.Meanwhile,a total of 5 846 fish eggs and 5 502 fish larvae and juveniles were collected.Specifically,the least abundance of ichthyoplankton appeared in April including 366 fish eggs accounting for 6.26% of the all eggs and 1 445 fish larvae and juveniles which accounted for 26.26% of the all larvae and juveniles.There were 1 530 eggs accounting for 26.17% and 1 551 fish larvae and juveniles accounting for 28.19% in May.The highest abundance of ichthyoplankton appeared in June including 3 950 fish eggs accounting for 67.57% and 2 506 fish larvae and juveniles were accounting for 45.55%.Consequently,there was a tendency toward increased ichthyoplankton abundance from April to June.As for the eggs,the most abundant of fish species was Sciaenidae sp.comprising 10.06% of the total,the second one was Nibea albiflora comprising 6.45% and the third one was Coilia mystus comprising 6.06%.But for the larvae and juveniles,the most abundant of fish species was C.mystus comprising 34.06% of the total,the second one was Gobiidae comprising 24.25% and the third one was Mugilidae comprising 23.57%.Studies show that Hangzhou Bay was the major spawning ground of C.mystus and their larvae and juveniles were mainly distributed here,only a small part of them were distributed in the Zhoushan Fishing Ground and Yushan Fishing Ground.In contrast,the spawning ground of Pseudosciaena polyactis was located outside of Zhoushan fishing ground and Yushan fishing ground.From the point of view of the spawning time and fishing ground distribution,Yushan fishing ground was the place where fishes spawned first and concentratedly.With the passage of time,the central zone of spawning ground shifted gradually towards the north where was Zhoushan fishing ground.The fish eggs abundance percentage of important commercial fish decreased obviously for example P.croea,P.polyactis,Pampus argenteus which were no longer dominant species as they were in 1960.On the contrary,the percentage of Ilisha elongata, and C.mystus increased while their absolute abundance decreased.The abundance of P.croea, andP.polyactis larvae and all fish eggs was lower than that of 1960,which indicated that the resource recruitment decreased in coastal areas,the possible reason of which was related to the decrease of parent stock resulting from environmental change and overharvest.