Analysis of Population Distribution on Stocking Area of Sandy Beach Clam, Gomphina melanaegis

민들조개 Gomphina melanaegis 방류지역의 민들조개 개체군 분포 분석

  • Lee, Chu (East Sea Fisheries Research Institute, NFRDI) ;
  • Lee, Chae-Sung (East Sea Fisheries Research Institute, NFRDI) ;
  • Kim, Su-Kyoung (East Sea Fisheries Research Institute, NFRDI) ;
  • Kim, Wan-Ki (East Sea Fisheries Research Institute, NFRDI) ;
  • Jo, Q-Tae (East Sea Fisheries Research Institute, NFRDI)
  • 이주 (국립수산과학원 동해수산연구소) ;
  • 이채성 (국립수산과학원 동해수산연구소) ;
  • 김수경 (국립수산과학원 동해수산연구소) ;
  • 김완기 (국립수산과학원 동해수산연구소) ;
  • 조규태 (국립수산과학원 동해수산연구소)
  • Published : 2009.10.30


The clam, Gomphina melanaegis, which is commonly called the sandy beach clam because of its habitat, is a valuable organism in the sandy coast of East Sea, Korea. It is frequently observed in large populations between 0.5 and 5 meters. We have released 50,000 seedling, ranging from the diameter of approximately 3 mm, 2007, and 1,000,000 seedling, ranging from the diameter of approximately 0.2 mm, plus 100,000 adult individuals, ranging from the shell length of approximately 20~40 mm, 2008 at Jinha beach. The spawning period of G. melanaegis, was from June to August, and the main spawning occurred in July. This investigation was carried out to elucidate population distribution on the stocking area of sandy beach clam, G. melanaegis. The relationship between shell length and ring radius in each ring was investigated as a regression line. The relationship between the shell length and shell height of released young clam was SH=1.0105SL-4.7764 ($R^2=0.7905$). The relationship between the shell length and total weight of released young clam was $TW=0.0013SL^{2.3966}$($R^2=0.71$). It draws a deduction that the ring of this clam was produced once a year during the duration between June and August.


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