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Analysis of Current Distribution around a Scaled-down Abalone System to determine the cause of mass mortality of abalone, Haliotis discus hannai (Ino, 1952)
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  • Journal title : The Korean Journal of Malacology
  • Volume 30, Issue 1,  2014, pp.9-15
  • Publisher : The Malacological Society of Korea
  • DOI : 10.9710/kjm.2014.30.1.9
 Title & Authors
Analysis of Current Distribution around a Scaled-down Abalone System to determine the cause of mass mortality of abalone, Haliotis discus hannai (Ino, 1952)
Cha, Bong-Jin; Choi, Yang-Ho; Yang, Young-Soo; Park, Min-Woo; Kim, Byeong-Hak; Pean, Yong-Bum;
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 Abstract
This study is aimed at figuring out the reasons of the mass mortality of abalone and the increase in its mortality rate in the sea cage. The study suggests that lack seawater circulation in an abalone aquaculture cage is an important culprit for it. We analyzed the current distribution around a 1/20 scaled-down abalone unit cage of 4 rows and 10 columns by fluid flow visualization technique (PIV : Particle Image Velocimetry). The speed of current in the model cage definitely slowed down in the first column of a unit cage. We also observed currents going down to the bottom of a water tank from the unit cages placed in the middle. The speed of wakes behind inside the row in the middle was slower than that outside the row. Water velocity inside and outside a real abalone cage at Nowha Island adjacent to Wan Island was measured to verify results from the tank test. The speed of current in front of the cage by 2 m was 0.11 m/sec while it was only 0.0009 m/sec inside the cage. It had similar findings with those of a tank test.
 Keywords
Abalone Cage;Mass Mortality;Seawater Circulation;PIV (particle image velocimetry);
 Language
Korean
 Cited by
1.
해상가두리 및 육상수조 중간양성 방식에 따른 북방전복, Haliotis discus hannai 치패의 성장 및 생존율,김병학;박민우;김태익;손맹현;이시우;

한국패류학회지, 2014. vol.30. 3, pp.235-242 crossref(new window)
2.
수하식 큰가리비 양식의 채롱간 조류의 흐름 간섭현상 규명,김현영;오봉세;차봉진;박미선;

한국패류학회지, 2014. vol.30. 3, pp.273-279 crossref(new window)
3.
육상수조 중간양성 방식별 생사료 및 배합사료 공급이 북방전복, Haliotis discus hannai 치패의 성장과 체성분에 미치는 영향,김병학;박민우;김태익;손맹현;이시우;

한국패류학회지, 2015. vol.31. 2, pp.73-81 crossref(new window)
1.
The Effects of Fed Artificial Diet and Seaweed Diet on Growth and Body Composition of Juvenile Abalone, Haliotis discus hannai by Land-based Tank Immediate Culture Types, The Korean Journal of Malacology, 2015, 31, 2, 73  crossref(new windwow)
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