There was an error in J. Exp. Biol. (2017) 220, 705–712 (doi:10.1242/jeb.148767).

The units for wavespeed in Fig. 6B are incorrect: they should be cm s−1. The corrected figure appears below, and both the online full-text and PDF versions of the article have been updated.

Fig. 6 (corrected).
Kinematic variables measured on the disc of little skates swimming at two speeds. Mean values for (A) body angle (deg), (B) wavespeed (cm s−1), (C) frequency (Hz) and (D) maximum amplitude (mm) at two speeds, 1 and 2 BL s−1 (blue and red, respectively). Asterisks indicate significant differences between tested speeds (n=3 individuals; two-way ANOVA, followed by a Tukey–Kramer multiple comparisons test, α=0.05).
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Kinematic variables measured on the disc of little skates swimming at two speeds. Mean values for (A) body angle (deg), (B) wavespeed (cm s−1), (C) frequency (Hz) and (D) maximum amplitude (mm) at two speeds, 1 and 2 BL s−1 (blue and red, respectively). Asterisks indicate significant differences between tested speeds (n=3 individuals; two-way ANOVA, followed by a Tukey–Kramer multiple comparisons test, α=0.05).

Fig. 6 (corrected).
Kinematic variables measured on the disc of little skates swimming at two speeds. Mean values for (A) body angle (deg), (B) wavespeed (cm s−1), (C) frequency (Hz) and (D) maximum amplitude (mm) at two speeds, 1 and 2 BL s−1 (blue and red, respectively). Asterisks indicate significant differences between tested speeds (n=3 individuals; two-way ANOVA, followed by a Tukey–Kramer multiple comparisons test, α=0.05).
View largeDownload slide

Kinematic variables measured on the disc of little skates swimming at two speeds. Mean values for (A) body angle (deg), (B) wavespeed (cm s−1), (C) frequency (Hz) and (D) maximum amplitude (mm) at two speeds, 1 and 2 BL s−1 (blue and red, respectively). Asterisks indicate significant differences between tested speeds (n=3 individuals; two-way ANOVA, followed by a Tukey–Kramer multiple comparisons test, α=0.05).

Fig. 6 (original).
Kinematic variables measured on the disc of little skates swimming at two speeds. Mean values for (A) body angle (deg), (B) wavespeed (mm s−1), (C) frequency (Hz) and (D) maximum amplitude (mm) at two speeds, 1 and 2 BL s−1 (blue and red, respectively). Asterisks indicate significant differences between tested speeds (n=3 individuals; two-way ANOVA, followed by a Tukey–Kramer multiple comparisons test, α=0.05).
View largeDownload slide

Kinematic variables measured on the disc of little skates swimming at two speeds. Mean values for (A) body angle (deg), (B) wavespeed (mm s−1), (C) frequency (Hz) and (D) maximum amplitude (mm) at two speeds, 1 and 2 BL s−1 (blue and red, respectively). Asterisks indicate significant differences between tested speeds (n=3 individuals; two-way ANOVA, followed by a Tukey–Kramer multiple comparisons test, α=0.05).

Fig. 6 (original).
Kinematic variables measured on the disc of little skates swimming at two speeds. Mean values for (A) body angle (deg), (B) wavespeed (mm s−1), (C) frequency (Hz) and (D) maximum amplitude (mm) at two speeds, 1 and 2 BL s−1 (blue and red, respectively). Asterisks indicate significant differences between tested speeds (n=3 individuals; two-way ANOVA, followed by a Tukey–Kramer multiple comparisons test, α=0.05).
View largeDownload slide

Kinematic variables measured on the disc of little skates swimming at two speeds. Mean values for (A) body angle (deg), (B) wavespeed (mm s−1), (C) frequency (Hz) and (D) maximum amplitude (mm) at two speeds, 1 and 2 BL s−1 (blue and red, respectively). Asterisks indicate significant differences between tested speeds (n=3 individuals; two-way ANOVA, followed by a Tukey–Kramer multiple comparisons test, α=0.05).

The authors apologise for any inconvenience.

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2021