Korean Journal of Ichthyology (한국어류학회지)

The Ichthyological Society of Korea (한국어류학회)
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Development of Larvae and Juveniles and Growth Characteristics of the Sebastes taczanowskii

탁자볼락(Sebastes taczanowskii) 자치어의 형태발달 및 성장특성

  • Seong-Jun Moon (Gyeongsangbuk-Do Fisheries Resources Institute) ;
  • Jin-Gak Kim (Gyeongsangbuk-Do Fisheries Resources Institute) ;
  • Yoon-Ha Kim (Gyeongsangbuk-Do Fisheries Resources Institute) ;
  • Ye-Sol Kwon (Gyeongsangbuk-Do Fisheries Resources Institute) ;
  • Seong-Min Yoon (Gyeongsangbuk-Do Fisheries Resources Institute) ;
  • Jae-Min Park (Gyeongsangbuk-Do Native Fish Business Center)
  • 문성준 (경상북도 수산자원연구원) ;
  • 김진각 (경상북도 수산자원연구원) ;
  • 김윤하 (경상북도 수산자원연구원) ;
  • 권예솔 (경상북도 수산자원연구원) ;
  • 윤성민 (경상북도 수산자원연구원) ;
  • 박재민 (경상북도 토속어류산업화센터)
  • Received : 2022.12.02
  • Accepted : 2023.01.04
  • Published : 2023.02.28
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Abstract

The morphological development of larvae and juvenile of Sebastes taczanowskii were studied. The S. taczanowskii were caught at Goseong-gun, Gangwon-do from March in 2016. Larvae beared at water temperature of 11~12℃ (mean 11.5±0.5℃). The just beared larvae were 5.25~5.96 mm (mean 5.60±0.19 mm, n=30) in total length and their mouth and anus were already opened. They began to eat rotifer and transformed to postlarvae stage. 35 days after bearing postlarvae was measured 7.16~11.4 mm (mean 9.02±1.00 mm) in total length and the tip of notochord was bent upward. 48 days after bearing juvenile was measured 9.45~18.7 mm (mean 14.4±1.75 mm) in total length with dorsal fin rays XIII, 13~15; anal fin rays III, 6~8; caudal fin rays 16.

이 연구는 탁자볼락의 자치어 형태발달을 관찰하여 분류 및 종자생산 연구의 기초자료로 이용하고자 실시하였다. 연구에 사용된 어미는 2016년 3월 강원도 고성군 주변 해역에서 포획한 것을 이용하였다. 자어 산출을 위한 사육수온은 11~12℃(평균 11.5±0.5℃)였다. 산출 직후 자어는 전장 5.25~5.96 mm (평균 5.60±0.19 mm)로 난황을 가졌고 입과 항문은 열려 있었다. 산출 후 35일째 후기자어는 전장 7.16~11.4 mm (평균 9.02±1.00 mm, n=30)로 척추말단 끝부분이 완전히 휘어졌다. 산출 후 48일째 치어는 전장 9.45~18.7 mm (평균 14.4±1.75 mm, n=30)로 이 시기에는 등지느러미 XIII, 13~15개였고, 뒷지느러미 III, 6~8개, 꼬리지느러미 기조 수는 16개였다.

Keywords

References

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