Abstract
Infradian aspects of Acetabularia are explored in a composite time series consisting of about 200 individual series collected during 1980-1991. The total duration of each study on a given cell and the duration of the initial span of light and darkness alternating at 12-hour intervals were taken as admittedly complex gauges of the alga. These two indices obtained from each cell were assigned to the midpoint of the corresponding study span. The series thus formed were analysed chronobiologically. In addition to a circannual variation, an about 10-year component was found and compared to the time structure of the planetary geomagnetic activity.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 303-308 |
| Number of pages | 6 |
| Journal | Scripta Medica Facultatis Medicae Universitatis Brunensis Masarykianae |
| Volume | 75 |
| Issue number | 6 |
| State | Published - Dec 1 2002 |
Keywords
- About-ten-year-rhythm
- Acetabularia
- Alga
- Cosmo-helio-geomagnetism