Korean Journal of Fisheries and Aquatic Sciences (한국수산과학회지)

The Korean Society of Fisheries and Aquatic Science (한국수산과학회)
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Population Dynamics of Corbicula ( Corbicula) japonica Prime from Namdae Stream in Yangyang, Korea

강원도 양양 남대천에서 채집된 일본재첩, Corbicula (Corbicula) japonica Prime의 수산자원학적 연구

  • Kwon Dae Hyeon (Department of Marine Biology, Pukyong National University) ;
  • Kang Yong Joo (Department of Marine Biology, Pukyong National University) ;
  • Kim Wan Ki (Gangnung Marine Hatchery, National Fisheries Research and Development Institute) ;
  • Lee Chae Sung (Gangnung Marine Hatchery, National Fisheries Research and Development Institute)
  • 권대현 (부경대학교 해양생물학과) ;
  • 강용주 (부경대학교 해양생물학과) ;
  • 김완기 (국립수산과학원 강릉수산종묘시험장) ;
  • 이채성 (국립수산과학원 강릉수산종묘시험장)
  • Published : 2002.11.01
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Abstract

Samples of Corbicula ( Corbicula) japonica Prime of Namdae Stream in Gangnung were collected from November 2000 to October 2001. Age of C. (C.) japonica was determined from the rings on the shell, The shell length of the samples ranged from 8 mm to 38 mm. The ring on the shell was formed once a year in March. Von Bertalanffy's growth parameters were estimated using a nonlinear regression method, asyinptotie shell length ($L_{\omega}$) was 48,98 mm, K was 0.20421year, theoretical age at 0 shell length $(t_0)$ was 0.3169 year, and asymptotic total weight ($W_{\omega}$) was 41.37 g. The formula of allomeky between shell length (L, mm) and total weight (W, g) of the brackish water clam was W=3.42$\times$10^{-4}L^{3}. The annual survival rate was estimated at 0.3799, instantaneous coefficient of natural mortality was 0.5007/year, and instantaneous coefficient of fishing mortality was 0.46721year. The age at first capture was estimated at 2.1593 year using shell length compositions of the brackish water clam, The current yield-per-recruit at 0.4672/year of fishing mortality was 0.6595 g. F_0.1 was estimated at 0.1865/year, Acceptable biological catch was estimated at 14.4 metric ton.

Keywords

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