High Density Large-scale Culture of Moina macrocopa by Improvement of Aeration Equipment
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- NAKAMOTO Takashi
- Fukuoka Fisheries and Marine Technology Research Center
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- INADA Yoshikazu
- Kyushu Laboratory of Aquatic Biology
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- USHIJIMA Toshio
- Fukuoka Fisheries and Marine Technology Research Center
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- HAGIWARA Atsushi
- Graduate School of Science and Technology, Nagasaki University
Bibliographic Information
- Other Title
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- 通気装置の改良によるタマミジンコMoina macrocopaの高密度大量培養
- ツウキ ソウチ ノ カイリョウ ニ ヨル タマミジンコ Moina macrocopa ノ コウミツド タイリョウ バイヨウ
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Abstract
The freshwater cladocera Moina macyocopa is a major live food in the propagation of early stage of freshwater fish species. As little research has been conducted to establish an effective culture technique, productivity of M. macrocopa culture remains unstable. Based on the observation of biological characteristics of M. macrocopa, we examined the conditions to develop large-scale culture system using 0.5-1.0 m3 small-scale circular tanks. The goals we aimed at were: 1) to disperse M. macrocopa homogeneously in the culture tank, 2) to prevent damage of M. macrocopa caused by direct exposure to aeration, 3) to control water movement below swimming speed (about 3 cm/sec) of M. macrocopa, 4) to supply enough oxygen to the culture water. In 3 days culture experiment at 28°C using 0.5 m3 culture tanks, we could harvest at 2.85 kg and 2.90 kg (wet weight) M. macrocopa using triple and quadruple piped aeration equipments, respectively. Under the same condition in 1.0 m3 tanks, we harvested 7.65 kg M. macrocopa using quadruple piped aeration equipment. The feed conversion fed concentrated freshwater Chlorella was 0.87-0.89 g (M. macrocopa) /ml (Chlorella) in 0.5 m3 tanks and 1.10 g/ml in 1.0 m3 tank. These results suggest that high density large-scale culture of M. macrocopa is possible using these equipments, and that it is possible to harvest M. macrocopa daily throughout the year by setting 3 large-scale culture tanks in a system.
Journal
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- Aquaculture Science
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Aquaculture Science 55 (3), 423-429, 2007
Japanese Society for Aquaculture Science
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Details 詳細情報について
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- CRID
- 1390282679693068032
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- NII Article ID
- 10019951499
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- NII Book ID
- AN00124667
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- ISSN
- 21850194
- 03714217
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- NDL BIB ID
- 8970935
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- Text Lang
- ja
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- Data Source
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- JaLC
- IRDB
- NDL
- CiNii Articles
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- Abstract License Flag
- Disallowed