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Immersion rate of Protothaca jedoensis spat on Different Grain Sizes  

Rha, Sung-Ju (Aquaculture Program, Fisheries and Ocean Science, Chonnam National University)
An, Yun-Keun (Aquaculture Program, Fisheries and Ocean Science, Chonnam National University)
Park, Il-Woong (Aquaculture Program, Fisheries and Ocean Science, Chonnam National University)
Kim, Jung (Aquaculture Research Center, Chonnam National University)
Choi, Sang-Duk (Aquaculture Program, Fisheries and Ocean Science, Chonnam National University)
Publication Information
Journal of Aquaculture / v.20, no.2, 2007 , pp. 127-131 More about this Journal
Abstract
In order to obtain the basic biological data for effective seed production of Protothaca jedoensis, the influence of sediment condition on its immersion rate was investigated. Immersion rate of P. jedoensis spats was investigated in the different substrate groups; mud, fine sand, medium sand and coarse. In 72 hours, immersion rate and survival rate of spat was 90.0 and 90.0, 76.7 and 98.3, 61.7 and 86.7, and 85.0 and 93.3%, respectively. And also, survival rates of the groups were 90.0%(mud), 98.3%(fine sand), 86.7% (medium sand) and 93.3% (coarse sand) respectively. The immersion time and rate of spat was increased with an increase in shell length.
Keywords
Protothaca jedoensis; Sediment; Survival; Immersion ability;
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Times Cited By KSCI : 1  (Citation Analysis)
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