. The Australian zoologist. Zoology; Zoology; Zoology. ECOLOGY OF CRAYFISH PARASTACOIDES TASMANICUS cany out the active digging. Signs of small surface holes indicating possible digging by young crayfish were very uncommon. Young animals may build their burrows de novo, but it seems more likely that they occupy vacated adult burrows. As a rule, there is one crayfish per burrow system, except for the case of females which have recently shed their young, in which case up to ten young hatchlings may be found in the burrow system. Adult individuals if kept together in captivity are very aggressive
. The Australian zoologist. Zoology; Zoology; Zoology. ECOLOGY OF CRAYFISH PARASTACOIDES TASMANICUS cany out the active digging. Signs of small surface holes indicating possible digging by young crayfish were very uncommon. Young animals may build their burrows de novo, but it seems more likely that they occupy vacated adult burrows. As a rule, there is one crayfish per burrow system, except for the case of females which have recently shed their young, in which case up to ten young hatchlings may be found in the burrow system. Adult individuals if kept together in captivity are very aggressive to one another. Leggett (1971) has described the agonistic encounters between individuals. If kept in a pair, the larger animal invariably 4-1-5 9-1-10 14-1-15 17-1-18 22-1-23 28-1-29 30-1-31 CARAPACE LENGTH (mm) 34-1-35 Fig. 7. Histogram of number of crayfish collected in the excavation of ten areas of the study area against carapace length. Aust. Zool. 18(3), 1975 205. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Royal Zoological Society of New South Wales; Royal Zoological Society of New South Wales. Proceedings. [Sydney, Royal Zoological Society of New South Wales]
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectzoology, bookyear1914
