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Mass Production of Artificial Seedlings in Hard Clam Meretrix petechialis (Lamarck)
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  • Journal title : The Korean Journal of Malacology
  • Volume 28, Issue 4,  2012, pp.313-319
  • Publisher : The Malacological Society of Korea
  • DOI : 10.9710/kjm.2012.28.4.313
 Title & Authors
Mass Production of Artificial Seedlings in Hard Clam Meretrix petechialis (Lamarck)
Kim, Tae-Ik; Ko, Chang Sun; Hur, Young Baek; Jin, Young Guk; Lee, Jeong Yong; Chang, Young Jin;
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 Abstract
Mass production method on artificial seedling production of hard clam Meretrix petechialis was developed indoor culture system. Spawning of adult clam (SL ) was induced using the combined method of air exposure and water temperature raising. The fertilized eggs were developed to D-shaped larvae after 17.7 hours at and hatching rate was 6.1%. Shell length (SL) of D-shaped larvae was measured to be and thereafter the larvae grew to the settled spats with SL in 4 days. Estimated survival rate of settled spats was 48.1%. Spat collection on 130,000 spats with SL performed conducted by sand bottom circulation filtering method. Collected spats grew up to in 46 days, in 87 days, and in 114 days. The relative growth between SL and shell height (SH) was calculated to be SH = 0.8501SL + 0.0196 () during the whole spat period. During spats rearing, they were suffered from one time of mass mortality at SL 3.1 mm, but 51,000 spats were finally survived with the rate of 39.2% at 114 days of spat rearing in indoor tank system.
 Keywords
hard clam;Meretrix petechialis;artificial seedling;mass production;
 Language
Korean
 Cited by
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