Korean Journal of Ichthyology (한국어류학회지)

The Ichthyological Society of Korea (한국어류학회)
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First Biometric Relationship and Seasonal Condition Factors of Sebastes zonatus Chen and Barsukov, 1976 and Thamnaconus modestus (Günther, 1877) Inhabiting the Waters of Ulleung-do and Dokdo

울릉도와 독도에 출현하는 띠볼락(Sebastes zonatus Chen and Barsukov, 1976)과 말쥐치(Thamnaconus modestus(Günther, 1877))의 생물역학적 관계와 계절적 비만도지수의 첫 보고

  • Joo Myun Park (East Sea Research Institute, Korean Institute of Ocean Science and Technology) ;
  • Hyun Su Rho (East Sea Research Institute, Korean Institute of Ocean Science and Technology) ;
  • Hee Gap Lee (East Sea Research Institute, Korean Institute of Ocean Science and Technology) ;
  • Se Hun Myoung (Fisheries Resources Research Center, National Institute of Fisheries Science) ;
  • Laith A. Jawad (School of Environmental and Animal Sciences, Unitec Institute of Technology) ;
  • Jae Ho Lee (Department of Ecological Engineering, Pukyong National University) ;
  • Chang Geun Choi (Department of Ecological Engineering, Pukyong National University)
  • 박주면 (한국해양과학기술원 동해연구소) ;
  • 노현수 (한국해양과학기술원 동해연구소) ;
  • 이희갑 (한국해양과학기술원 동해연구소) ;
  • 명세훈 (국립수산과학원 수산자원연구센터) ;
  • ;
  • 이재호 (부경대학교 생태공학과) ;
  • 최창근 (부경대학교 생태공학과)
  • Received : 2023.01.11
  • Accepted : 2023.02.06
  • Published : 2023.02.28
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Abstract

This study is the first to report the biometric information between the length and weight relationships (LWR) and seasonal body condition factors (K) of Sebastes zonatus Chen & Barsukov, 1976 and Thamnaconus modestus (Günther, 1877) inhabiting the waters off Ulleung-do and Dokdo. The LWRs in spring and summer, and all seasons combined were highly correlated (r2>0.959), and the regression slopes of LWRs were significantly different between the spring and summer in both species. The body conditions of the two fish were significantly higher during the spring than during the summer, reflecting their fatness in relation to spawning. The results from this study contribute to the understanding of the biology of S. zonatus and T. modestus and provide useful data for the development of conservation and management plans for these species.

본 연구는 울릉도와 독도 해역에 서식하는 띠볼락(Sebastes zonatus Chen and Barsukov, 1976)과 말쥐치(Thamnaconus modestus (Günther, 1877))의 체장-체중 관계 (LWR)와 계절적 비만도지수 (K) 정보를 국내 최초로 보고하였다. 두 종의 체장-체중 관계는 모든 계절에 높은 상관성을 보였으며(r2>0.959), LWR 회귀 기울기는 두 종 모두 저수온기와 고수온기 사이에 유의하게 차이가 있었다. 두 종의 비만도지수는 저수온기에 고수온기보다 현저히 높아 산란기와 관련된 비만도 증가를 반영하였다. 본 연구의 결과는 띠볼락과 말쥐치의 생물학적 특성을 이해하고 향후 두 어종에 대한 보존 및 관리 계획 개발에 유용한 자료를 제공할 것이다.

Keywords

Acknowledgement

We thank Ji Min Lee and Jong Hun Kim for their help with the measurements and sample dissection. This study was supported by the National Marine Biodiversity Institute Research Program(2022M00100).

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