水産餌料用微細藻類の高密度培養における光放射環境実験装置の開発 [in Japanese] Development of an Experimental Facility in Consideration of Optical Radiant Environment for High-Density Culture of Microalgae as Aquaculture Initial Feed [in Japanese]
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In order to meet the need of increasing yield and reasonable management of marine resources, artificial mass production of aquatic seeds and saplings are required. Accordingly, a great number of microalgae are required to be supplied stably to the seeds and saplings concerned. An experimental facility was developed for achieving a high-density cultivation of microalgae as feed for the seeds and saplings in early growth stages of bivalves, echinoderms and crustaceans. The experimental facility developed an optical radiant environment with culture-solution tank (capacity: 200 <I>l</I>) covered entirely with luminaries, which were composed of compactly single-capped three-band fluorescent lamps 55 W controlled by a dimmer. This set-up was able to produce a high lighting efficiency and a high uniformity ratio of photosynthetic photon flux density (PPFD, more than 300 μmol m<sup>-2</sup>s<sup>-1</sup>). The facility also had a water-bath to keep culture-solution at a constant temperature and an aeration control for aerating solution, as well as for washing and sterilizing tank based on high work efficiency. This experimental facility could readily become a practical way of achieving a stable supply of microalgae needed for the management of marine resources.
Eco-Engineering 17(4), 215-222, 2005-10-30
The Society of Eco-Engineering