Table 2.

Characteristics of pulses and interpulses in the luminescent courtship displays of the cypridinid ostracod Vargula annecohenae based on laboratory recordings

Pulse numberIntensity (as % of pulse 1)Pulse duration (ms) (N)Interpulse interval (s) (N)Interpulse distance (vertical; cm) (N)Interpulse distance (horizontal; cm) (N)
1100430±20 (16)
257.3±5.5 (19)330±18 (16)1.30±0.05 (85)–0.07±0.24 (85)–0.28±0.21 (85)
335.34±3.4 (19)260±10 (16)0.98±0.04 (85)1.55±0.17 (85)0.32±0.15 (85)
430.31±4.4 (19)260±10 (16)0.83±0.01 (85)2.53±0.17 (85)–0.10±0.16 (85)
523.77±4.7(19)240±9 (16)0.76±0.01 (83)3.41±0.15 (83)0.21±0.19 (83)
620.35±4.3(18)220±10 (16)0.73±0.01 (81)3.81±0.15 (81)0.24±0.24 (81)
715.68±2.7(17)210±6 (16)0.73±0.01 (76)4.05±0.15 (76)0.38±0.33 (76)
815.32±3.2 (17)210±10 (15)0.69±0.01 (69)3.92±0.18 (69)–0.13±0.07 (69)
914.53±1.3(17)190±7 (15)0.71±0.01 (51)4.04±0.19 (51)0.45±0.46 (51)
1014.13±3.4 (14)180±8 (15)0.69±0.03 (43)3.73±0.19 (43)0.00±0.07 (43)
1112.30±2.5(12)190±9 (13)0.67±0.01 (21)3.57±0.23 (21)–0.26±0.08 (21)
1213.75±3.2(9)180±11 (8) * * *
Stationary phase (mean)340±13 (48)1.23±0.04 (170)0.74±0.16 (170)0.02±0.13 (170)
Helical phase mean18.41±1.5(122)210±3 (129)0.75±0.007(494)3.77±0.05 (494)0.23±0.10 (494)
  • Pulse numbers 1–3 are in the stationary phase and 4–12 are in the helical phase

    Values are means ± s.e.m. *No data available