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- W2047819648 abstract "Abstract In April 1989 juvenile Cherax destructor (mean weight 3.9 g) were stocked at densities of 3 and 9 m −2 into four 0.2 ha ponds in which a forage crop was planted. At harvest in February 1990 mean weights were 24.9, 33.7, 36.6 and 40.0 g with final mean weight lower in the high density ponds. There was wide variation in individual growth, with weight at harvest varying from 10 to 80 g and only 10.7% of yabbies harvested were premium market size (>50 g). Reproduction in the ponds provided a second generation of juveniles and large numbers of berried females at harvest. Only 22 to 44% of yabbies stocked were collected at harvest but refilling and further harvesting showed that perhaps 30% of the population had avoided harvest by burrowing. Yabbies below 50 g were restocked to grow-on ponds and more than 50% achieved market size in the period February–June. The biomass harvested after 10 months varied from 406 to 689 kg ha −1 . After grow-on and carry-over harvests, total yield from the original cohort was 666 kg of which 405 kg comprised individuals above 50 g. This yield was from an area approximately equivalent to 1 ha of ponds. Extensive aquaculture using forage crops can produce modest yields of premium size C. destructor . Yields may improve with further development of forage management and harvesting methods." @default.
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- W2047819648 date "1993-07-01" @default.
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- W2047819648 title "Survival, growth and yield of the Australian freshwater crayfish Cherax destructor in extensive aquaculture ponds" @default.
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- W2047819648 doi "https://doi.org/10.1016/0044-8486(93)90250-3" @default.
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