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EUASTACUS ARMATUS

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COMMON NAME:                                             MURRAY SPINY CRAYFISH     

COLOUR:                                                            Body dorsally dark or medium green to brown, sometimes tinged blue.
                                                                            Chelae cream to white on adults.

LARGEST SIZE OBSERVED:                           15cm CARAPACE LENGTH, 1430 gms WEIGHT - Female

LARGEST SIZE (THIRD PARTY):                   17.5cm CARAPACE LENGTH, 1.7 Kgs WEIGHT - Male

INCREASE IN CARAPACE LENGTH AFTER MOULT:
Measuring moult shell and comparing to crayfish approximately 10 days after Moult.                              

OLD CARAPACE
LENGTH (cm)		 NEW CARAPACE
LENGTH (cm)		 INCREASE IN
LENGTH (cm)		 SEX MOULT
DATE
9.1 9.6 0.5 M 14/04/06
9.2 9.7 0.5 F 18/04/06
9.5 9.9 0.4 F 20/04/06
        21/03/07
        24/03/07

BROOD STOCK BERRIED:                             Early June 2005,                     Mid May 2006,                September 2006
JUVENILES RELEASED:                                 Early November 2005,

MINIMUM MATING SIZE OBSERVED:         8 cm Carapace Length.

DISTRIBUTION:                                               Murray River System, and Tributaries.

CONSERVATION STATUS:                            Closed Season - See Victorian Recreational Fishing Guide.

ARMATUS HABITAT PHOTOS