Decreased day length and light intensity as factors inducing reproduction in Gammarus lacustris lacustris Sars
Gammarus lacustris cultures were maintained in the laboratory under different light and temperature conditions during a 5-year period. Reproduction occurred only in adults which had been held at a short day length (12 h light) or in dim light for several weeks. Changes in photoperiod are the most co...
| Published in: | Canadian Journal of Zoology |
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| Main Author: | |
| Format: | Article in Journal/Newspaper |
| Language: | English |
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Canadian Science Publishing
1982
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| Subjects: | |
| Online Access: | http://dx.doi.org/10.1139/z82-376 http://www.nrcresearchpress.com/doi/pdf/10.1139/z82-376 |
| Summary: | Gammarus lacustris cultures were maintained in the laboratory under different light and temperature conditions during a 5-year period. Reproduction occurred only in adults which had been held at a short day length (12 h light) or in dim light for several weeks. Changes in photoperiod are the most consistent seasonal changes in temperature and arctic ecosystems, hence the response to light ensures regular annual reproduction in spite of unusual climatic conditions. |
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