Ocean and Polar Research

Korea Institute of Ocean Science & Technology (한국해양과학기술원)
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Age Determination and Growth Using the Transverse Section Method of Otoliths Sandfish, Arctoscopus japonicus, in the Eastern Sea of Korea

한국 동해산 도루묵의 이석횡단절단법에 의한 연령사정 및 성장

  • Lee, Hae-Won (Department of Marine Biology, College of Fisheries Sciences Pukyong National University) ;
  • Kang, Yong-Joo (Department of Marine Biology, College of Fisheries Sciences Pukyong National University)
  • 이해원 (부경대학교 수산과학대학 자원생물학과) ;
  • 강용주 (부경대학교 수산과학대학 자원생물학과)
  • Published : 2006.09.30
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Abstract

The ages of sandfish, Arctoscopus japoninis sampled from the eastern sea of Korea, were determined by the transverse section method of otoliths. Ages were assigned to every individual according to the number of opaque zones, and then fitted to the von Bertalanffy growth equation. Estimated equations were $L_t=25.90(1-e^{-0.2976(t+0.4447)})$ for females and $L_t=21.38(1-e^{-0.2917(t+1.2087)})$ for males, where t is age (year) and $L_t$, is body length (mm) at age t. These two equations were significantly different and the body length of females calculated from the equation was larger than that of males except at 1 year old.

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References

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