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http://dx.doi.org/10.5762/KAIS.2016.17.9.322

Population growth of a tropical tintinnid, Metacylis tropica on different temperature, salinity and diet  

Lee, Kyun-Woo (Marine Life & Ecosystem Division, Korea Institute of Ocean Science & Technology)
Choi, Young-Ung (Marine Life & Ecosystem Division, Korea Institute of Ocean Science & Technology)
Publication Information
Journal of the Korea Academia-Industrial cooperation Society / v.17, no.9, 2016 , pp. 322-328 More about this Journal
Abstract
This study investigated the effects of temperature, salinity, and algal diet to find the optimal conditions for 5 days for the mass culture of the tropical tintinnid, Metacylis tropica. This tintinnid had a small, hyaline, and ovoid lorica. The oral diameter, length, and maximum width of the lorica were $36.7{\mu}m$, $49.5{\mu}m$, and $44.5{\mu}m$, respectively. In the temperature experiments, the highest maximum density and population growth rate were observed at $30^{\circ}C$ with 340.7 cells/mL and 1.1/day, respectively. Lower salinities adversely affected the population growth of M. tropica. The maximum density was observed at 33 ppt (840 cells/mL). In the diet experiments, M. tropica fed Isochrysis galbana showed the highest density (413 cells/mL) and population growth rate (1.2/day). As a result, M. tropica is appropriate as a potential prey organism for early fish larvae with smaller mouths because the tintinnid has a relatively small size compared to the rotifer. In addition, the conditions of $30^{\circ}C$, 33 ppt and supplying I. galbana would be effective in the cultivation of M. tropica.
Keywords
Diet; Metacylis tropica; Optimum culture condition; Salinity; Temperature; Tintinnid;
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Times Cited By KSCI : 1  (Citation Analysis)
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