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Figure 7


Fig. 7. Summary of angle measurements to indicate crayfish body and antenna position in the laneway. Heading and maximum heading angles are shown at the posterior end of the crayfish, 5±1° and 14±4° respectively (mean ± s.e.m.). Antennae were spread 48±3° either side of the body axis and with a mean angle of 95±7° between the two antennae.