. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 21, Time of day 0 18 Tide height (m) 0 05 10 15. Figure 4. Daily timing of emergence of Clunio tsushimensis males in relation to day-night, tidal, and lunar cycles. (Left) The record from 28 October to 25 November 1990. Midges were collected using a light trap method. The number of midges is plotted vertically on the horizontal lines, which also show the 5-min period every 30 min (dot) during which sampling was done. Absence of the horizontal bars indicates no sampling. 55 and SR represent the times of sunset and sunrise, re
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 21, Time of day 0 18 Tide height (m) 0 05 10 15. Figure 4. Daily timing of emergence of Clunio tsushimensis males in relation to day-night, tidal, and lunar cycles. (Left) The record from 28 October to 25 November 1990. Midges were collected using a light trap method. The number of midges is plotted vertically on the horizontal lines, which also show the 5-min period every 30 min (dot) during which sampling was done. Absence of the horizontal bars indicates no sampling. 55 and SR represent the times of sunset and sunrise, respectively. HW and L\V connect the respective times of high tides and low tides at the habitat. Open circle: full moon; black circle: new moon; semicircles: the first and last quarters of the moon. The vertical scale indicates 300 midges. (Right) Wide left panel: the pattern of emergence in midwinter (the record from 9 January to 22 February 1991). Midges were collected by sweeping for 5 min every 30 min. The number of midges is plotted vertically on the horizontal line during which the sampling was made. The vertical scale shows 10 midges. /. 117 and L\V2 connect the times of low tides at the habitat. Other symbols are as in Figure 4A. Narrow right panel: fluctuations in the height of the two low tides, LI17 and L\V2. (Fig. 7c, 7d). The peak then advances from the days of full and new moon: in June and July (Fig. 7e), it appears 4 days before the syzygy, and from August to October (Fig. 7f, 7g), it advances near the half moon. The peak is again close to the full and new moon from November to December (Fig. 7h). To examine the relationship between the shift of the semilunar peak and the temperature of the habitat, each peak of the semilunar rhythm was plotted in relation to the seasonal fluctuation of water temperature. As shown in Figure 8, the peak (, the mean of the distribution of emerging midges in each semilunar cycle) is represented by the days shifted from each full
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Keywords: ., bookauthorlilliefrankrat, booksubjectbiology, booksubjectzoology
