Yabbies, updated

Yabby, Cherax albidus

This is a very confusing area. Some experts say that this species is actually a Cherax destructor, while others classify it as a separate species. This specimen was taken from the Crawford River south of Hamilton in Victoria. They are slender and do vary slightly in appearance from the usual yabbies. On a recent TV program a commercial aquaculturist collected hundreds of specimens from all over Australia and finally came up with a breeding pair which produced infertile males. This seems to suggest that there is more than one species.

This is an example of what can be done by selective breeding. The bluest of each batch are breed together until the blue pigment become dominant. This photo is supplied from Chris in Germany and it is either
C albidus or destructor. I tend to think that is most likely destructor because albidus have a comparativly small home range. These types of yabbies will also go bluer in light coloured surroundings.
Yabby, Cherax destructor

This is a very prolific species and they are found all over eastern Australia from the tropics to Victoria and South Australia. There are other definite species such as red claw and marron.

This excellent photo is from Uli Hopp.

The mottled pattern is found on all destructors and some other Cherax species. Each pattern is unique like a fingerprint. Some people believe that these patterns are so crayfish can identify each other. They do thrive in murky water so this may have some credibility because the first thing a cray sees when walking forward is the claws of another, believe it or not.
Here's Joe the Mystery Man. This is a typical farm dam on private property. The net he's pulling in is called an opera house due to it being shaped like the Sydney Opera House. These nets are illegal in public waters but are allowed in lakes near Horsham. Check with DNRE for legal localities.

And here's your's truly with James in the back ground. I don't support eating crayfish but yabbies are prolific and taste great.