Effect of different light intensities on the growth of the diatom Chaetoceros calcitrans
Batch cultures of C. calcitrans were maintained indoors at a temperature range of 21 to 25 C and continuously illuminated by 40-watt daylight fluorescent lights. Cultures were exposed to 5 different intensities from 200 to 25,000 lux.Population counts show that light intensity affects growth and reproduction of the algae cultivated. A comparison of population peak growths showed cultures illuminated by 12,000 lux to have higher cell counts than those exposed to higher or lower light intensities.
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| Main Author: | |
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| Format: | article biblioteca |
| Language: | English |
| Published: |
1977
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| Subjects: | Aquaculture, Biology, Light effects, Phytoplankton culture, Chaetoceros calcitrans, |
| Online Access: | http://hdl.handle.net/1834/33967 |
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| Summary: | Batch cultures of C. calcitrans were maintained indoors at a temperature range of 21 to 25 C and continuously illuminated by 40-watt daylight fluorescent lights. Cultures were exposed to 5 different intensities from 200 to 25,000 lux.Population counts show that light intensity affects growth and reproduction of the algae cultivated. A comparison of population peak growths showed cultures illuminated by 12,000 lux to have higher cell counts than those exposed to higher or lower light intensities. |
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