Fig. 5. The relationship between swimming performance and total time spent in the trawl net. (a) Fish with greater maximum burst speed, Umax (anaerobic swimming, top horizontal axis), tended to spend less time in the trawl (vertical axes). The same was true for (b) fish with greater maximum sustained swimming speed, Ugt (aerobic swimming, bottom horizontal axis). The dashed line represents the speed of the trawling net, which is typically set at a high speed to fatigue fish by forcing burst swimming. Adapted from Killen et al., 2015.