Figure 1

Skate behaviour in response to EMF. (a) The modelled estimates of the mean total distance travelled by skates in each enclosure as influenced by the sequence of exposure to the enclosures. (b) The modelled estimates of the mean speed of movement by skates at each enclosure as influenced by the sequence of exposure to the enclosures. (c) The modelled estimates of the mean proportion of large (170–180°) turns by skates at each enclosure; and for each sequence (d). (e) The modelled estimates of mean height of the skates from the seabed at each enclosure. The estimates were back-transformed where appropriate and the 95% confidence intervals are shown. The maximum EMF at the base of the treatment enclosure was 65.3 µT and the control enclosure was 51.3 µT.