The Korean Journal of Malacology (한국패류학회지)

The Malacological Society of Korea (한국패류학회)
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Age and Growth of the Jedo Venus Clam, Protothaca jedoensis on the West Coast of Korea

한국 서해산 살조개 Protothaca jedoensis의 연령과 성장

  • Kim, Ji-Hyun (Faculty of Marine Life Science, Kunsan National University) ;
  • Kim, Jong-Sheek (Boryeong Marine Hatchery, West Sea Fisheries Research Institute, NFRDI) ;
  • Kim, Yong-Ho (Faculty of Marine Life Science, Kunsan National University) ;
  • Chung, Ee-Yung (Faculty of Marine Life Science, Kunsan National University) ;
  • Ryu, Dong-Ki (Faculty of Marine Life Science, Kunsan National University)
  • 김지현 (군산대학교 해양생명과학부) ;
  • 김종식 (국립수산과학원 서해수산연구소 보령수산종묘시험장) ;
  • 김용호 (군산대학교 해양생명과학부) ;
  • 정의영 (군산대학교 해양생명과학부) ;
  • 류동기 (군산대학교 해양생명과학부)
  • Published : 2003.12.01
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Abstract

Age and growth of the the Jedo venus clam, Protothaca jedoensis were investigated using samples from the subtidal zone of Boryeong, Chungcheongnam- do, Korea from January to December, 1999. The relationship between shell height and ring radius in each group was expressed as a regression line. Therefore, it could be recognized that there is a correspondence in the formation of each ring. Based on the monthly variation of the marginal index of the shell, it was suggested that the annual ring mark formation occurred during the period of February to March once a year. The relationship between shell height (SH) and total weight (TW) was represented by the non-linear equation: TW = 0.0007 SH$^{2.8919}$, and also in the relationship between shell length (SL) and shell height (SH), shell height (SH) and shell width (SW) were represented by the linear equations: SL=1.1067SH+1.778, SW=0.6758SH-0.9824. Growth curves for shell height and total weight fitted to the von Bertalanffy equation were expressed as: SH$_t$ = 81.546(1-e$^{-0.176(t+0.381)}$), TW$_t$ = 227.65(1-e$^{-0.176(t+0.381)})^{2.8919}$.

1999년 1월부터 12월까지 매월 충남 보령연안에 서식하는 살조개 총 2,591 개체를 채집하여 연령과 성장에 관하여 조사하였다. 살조개의 패각에 나타나는 윤문은 연 1회 형성되었으며, 윤문형성 시기는 2-3월 중인 것으로 조사되었다. 각고(SH)에 대한 각장 (SL), 각폭 (SW) 및 총중량 (TW) 사이의 상대성장 관계는 각각 SL = 1.1067 SH + 1.778, SW = 0.6758 SH - 0.9824, TW = 0.0007 SH$^{2.8919}$이었고, 연령 (t) 에 대한 각고와 총중량으로부터 구한 von Bertalanffy 성장식은 SH$_t$ = 81.546(1-e$^{-0.176(t+0.381)}$), $_t$ = 81.546(1-e$^{-0.176(t+0.381)}$)이었다.

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