수산해양기술연구(구 한국어업기술학회지) 58권 3호 (p.205-213)

부세(Larimichthys crocea)의 수정란 및 종자생산 연구

A study on the production of fertilized eggs and seedling of Large yellow croaker (Larimichthys crocea)
키워드 :
Large yellow croaker,Larimichthys crocea,Seedling production,Aquaculture technology,Artificial seedling

목차

서 론
재료 및 방법
   친어 성숙관리
   친어 산란유도 및 수정란 관리
   초기 사육관리
결과 및 고찰
   난 발생
   자치어 성장 및 먹이공급
결 론
사 사
References

초록

The experimental fish transplanted from China in 2015 was used after seedling production and cultivated. Breeding management for experiment was carried out from October 2020 to February 2021. Also, it succeeded in inducing artificial maturation three to four months earlier than wild broodstock and secured good quality fertilized eggs. The average size of fertilized eggs was 1.22 mm, at 20℃ Blastodisc (15 minutes post-fertilization), 2 cell (50 minutes), 4 cell (1 hours), 8 cell (2 hours), 16 cell (2 hours and 30 minutes), 32 cell (2 hours and 50 minutes), morula (3 hours), blastula (8 hours), gastrula (15 hours), skull formation (20 hours), organ formation (30 hours) and hatching yolk larvae stage (35 hours). The total length of the just hatched larvae were 2.50 ± 2 mm, and then gain growth of 42.5 mm by 60 days, reaching 45 ± 5 mm.