Please report these illegal nets to Access Canberra. The information gets passed on to our Fisheries Enforcement Officer who follows up on these and keeps and eye on these areas.
thanks Helen. Yes they are much less common than claws after predation events try https://www.researchgate.net/figure/The-gastric-mill-and-its-components-A-Cherax-quadricarinatus-specimen-with-the-carapace_fig8_281445611 The ones needed are the outer mill structures (Zt) shown in the figure and in Figure 2. Not the parrot beak structure in the middle. They are located in the front third of the carapace but are not the external mandibles. Usually in a long dead specimen they are packed with dried vegetable matter that is their food.
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