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Table 5 Statistical comparisons between field and laboratory recordings for female sounds from Ophidion rochei

From: Sexual dimorphism of sonic apparatus and extreme intersexual variation of sounds in Ophidion rochei (Ophidiidae): first evidence of a tight relationship between morphology and sound characteristics in Ophidiidae

Variables Methods Results
Pulse number M-W U test N = 76, U = −1.27, p > 0.05
Call duration M-W U test N = 76, U = −1.07, p > 0.05
Pulse period M-W U test N = 354, U = 0.48, p > 0.05
Pulse duration M-W U test N = 431, U = −4.37, p < 0.05
Fundamental M-W U test N = 68, U = −0.37, p > 0.05
1 st harmonic M-W U test N = 76, U = 77, p > 0.05
2 nd harmonic M-W U test N = 77, U = −0.82, p < 0.05
  1. M-W U test: U test of Mann-Whitney. Significance level is determined at p < 0.05.