CHERAX DESTRUCTOR
COMMON NAME: YABBY
COLOUR: Green, Bluish Grey, Some with Blue Claws.
LARGEST SIZE OBSERVED: 7.9 cm CARAPACE LENGTH, 350gms WEIGHT
INCREASE IN CARAPACE Measuring moult shell and comparing to crayfish approximately 10 days after
Moult.
LENGTH AFTER MOULT:
69 mm carapace moult shell / 75 mm crayfish carapace = increase of 6 mm (M)
weight 305 gms. (11/04/06)
MATING
SEASON:
Around October. Water temperature 15+ with daylight hours 14+.
MINIMUM MATING SIZE: Observed at 15 grams.
HABITAT: Dams, lakes, rivers, creeks and streams that have minimal predators like eels.