Freshwater Crayfish

Discussion

Mike wrote:

30 Oct 2024

I removed the net and reported it to the local ranger. I have previously removed other nets but this is the first of this style.

Cherax destructor

Jek wrote:

30 Oct 2024

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.

Cherax destructor

MattBeitzel wrote:

20 May 2024

Its probably being used by a rakali. Though they usually use a flat area near the creek as a table and live in the hole.

Cherax destructor

MattBeitzel wrote:

10 May 2024

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.

Euastacus sp. (genus)

HelenCross wrote:

10 May 2024

Thanks Matt, there never seems to be much else left than the claws from the ones I've seen so far but will keep looking. Have you got a link to some good illustrations or images of the gastric mill and where it is?

Euastacus sp. (genus)

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Engaeus rostrogaleatus

Freshwater Crayfish