Fig. 5. Distribution of behavioural categories throughout a lethal heat shock applied to Menez Gwen M. fortunata shrimps (20 individuals), at in situ pressure (8.5 MPa, exp. 7). Squares, total movement, i.e. C2+C3=20–C1; circles, moving more than body length, i.e. C3; triangles, loss of equilibrium, i.e. C4; solid bold line: temperature (°C). For an explanation of the behavioural categories, see Table 1.