. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 142 D. K. HARTLINE ET AL. C/) O c Q) CO 120 80 E 40 _ o CO 0 • Fern X Male I I I 1. 0 10 20 Jump Latency (ms) Figure 8. Scatter plot of fast swim latencies (x axis) versus biolumi- nescence latencies (v axis). Squares: adult females (H = 7); crosses: adult male (n = 11. All points lie above the line, which has a slope of one. The possibility that there might be a sexual difference in the response patterns is intriguing. Characteristics of biolitminescence and its relation to other cases reported in the literature The kinetic
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 142 D. K. HARTLINE ET AL. C/) O c Q) CO 120 80 E 40 _ o CO 0 • Fern X Male I I I 1. 0 10 20 Jump Latency (ms) Figure 8. Scatter plot of fast swim latencies (x axis) versus biolumi- nescence latencies (v axis). Squares: adult females (H = 7); crosses: adult male (n = 11. All points lie above the line, which has a slope of one. The possibility that there might be a sexual difference in the response patterns is intriguing. Characteristics of biolitminescence and its relation to other cases reported in the literature The kinetics and spatial patterns of bioluminescence re- leased by copepods have been studied for copepods stimu- lated with electrical pulses (Latz et al. 1987; Bowlby and Case. 1991) and for copepods stimulated by mechanical disturbance of undefined frequency and intensity (Latz et ai, 1990). For the large mesopelagic copepod Gaussiu princeps, Bowlby and Case (1991) identified three types of flash in response to single electrical stimuli: a fast flash of about 2-s duration, a long flash of 7-s duration, and a slow flash of 17-s duration. Latz et al. (1987) found two compo- nents to flashes in P. xiphias stimulated with a single electrical pulse: a fast component that reached maximum intensity in 600 ms. Double flashes with fast and slow characteristics were also observed. Using an intensi- fied video system, he observed that the fast component originated from thoracic and abdominal glands, without obvious discharge of bioluminescent material away from the body; the slow component of flashes was caused by the discharge of luminescent fluid from the abdominal organ. Flashes with similar kinetics were observed for P. xiphiax exposed to mechanical stimulation from a stirring paddle with three tines rotated at 2000 rpm for < 1 s. Since the spatial relationship between the copepod and the rotating tines is unknown during the stimulation period, neither the frequency nor the intensity of
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Keywords: ., bookauthorlilliefrankrat, booksubjectbiology, booksubjectzoology
