| 摘要 |
A chlorophyll-rich and salt-resistant chlorella which contains a large amoun t of chlorophyll. When used as a feed for rotifers in pisciculture, the chlorella makes it possible to provide fishes with relieved contamination wi th environmental contaminants such as dioxin having been concentrated by the fo od chain from seawater. Further, it survives over a long time in seawater and, therefore, is suitable for feeds for sea surface fish cultivation, fishery feeds, etc. This chlorophyll-rich and salt-resistant chlorella mutant, which can grow in a medium containing 1 % by weight or more of sodium chloride and contains chlorophyll at a high concentration (i.e., 4 % or more in total on the basis of dry matter), can be constructed by mutagenizing chlorella by repeatedly UV-irradiating and treating with a mutagen such as a methanesulfonic acid ester or acriflavine.
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