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Fig. 4 | BMC Zoology

Fig. 4

From: Timing of isolation from an enriched environment determines the level of aggressive behavior and sexual maturity in Siamese fighting fish (Betta splendens)

Fig. 4

Plasma concentrations of 11-ketotestosterone (11-KT) of males, estradiol (E2) of females, and cortisol of both sexes of Betta splendens subjected to mirror-image tests according to different rearing environment. Values are means ± standard errors (SEs) and significant differences are indicated by different letters. N.S.: not significant. Statistical significance is defined as p < 0.05 based on analysis of variance (ANOVA) followed by the Tukey–Kramer method for 11-KT and E2, by the Dunnett’s test for cortisol. Sample sizes are noted in parentheses under the bars in graphs

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