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http://dx.doi.org/10.9710/kjm.2013.29.3.189

A Study on the Optimum Stocking Density of the Juvenile Abalone, Hailotis discus hannai Net Cage Culture or Indoor Tank Culture  

Kim, Byeong-Hak (Southwest Sea Fisheries Research Institute, NFRDI)
Park, Min-Woo (Southwest Sea Fisheries Research Institute, NFRDI)
Son, Maeng-Hyun (Southwest Sea Fisheries Research Institute, NFRDI)
Kim, Tae-Ik (Southwest Sea Fisheries Research Institute, NFRDI)
Cho, Jae-Kwon (Southwest Sea Fisheries Research Institute, NFRDI)
Myeong, Jeong-In (Aquacuture Research Institute, NFRDI)
Publication Information
The Korean Journal of Malacology / v.29, no.3, 2013 , pp. 189-195 More about this Journal
Abstract
Experiments for net cage culture at sea were conducted in each $2.4{\times}2.4$ m in area and took the samples from four different densities: 150, 300, 450 and 600 per cross-sectional area ($m^2$) of shelter. The same stocking densities applied to indoor tank culture to investigate the growth and survival rate. The size of juvenile abalone sample was $36.14{\pm}2.28$ mm for net cage culture and $38.62{\pm}3.22$ mm or indoor tank. Feed such as raw brown sea mustard, raw kelp and dried kelp was sufficiently provided to the abalone. In net cage culture experiment, the growth of the spat of juvenile abalone was the fastest $60.53{\pm}5.75$ mm in the 150 abalone cage per square meter ($m^2$), followed by the 300 abalone cage at $54.01{\pm}5.17$ mm, 450 abalone cage at $51.48{\pm}5.37$ mm and 600 abalone cage at $51.09{\pm}4.96$ mm in order. In the meantime, in the indoor tank experiment, the 150 abalone indoor tank was the fastest $47.50{\pm}6.31$ mm per square meter, followed by the 300 abalone tank at $45.92{\pm}5.23$ mm, the 450 abalone tank at $44.24{\pm}5.59$ mm and the 600 abalone tank at $43.62{\pm}4.44$ mm in order. The survival rate was more than 97.9% in all the experiments, not showing a significant difference.
Keywords
Abalone; Spats; densities; Haliotis discus hannai;
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