We use a bioeconomic model to analyse two alternative harvesting schedules for male and female redclaw: simultaneous (same day) harvests of ponds for each sex and harvesting ponds independently for each sex (different days). The results show that, for simultaneous harvests, best results are obtained after 120 days of cultivation yielding, with 95% confidence, a mean net revenue (NR) of 26,820 USD$ ha⁻¹ and mean benefit–cost ratio (B/C) of 3.08. For independent harvests, best results are obtained by harvesting males after 109 (NR) and 97 (B/C) days, and females after 120 (NR) and 107 (B/C) days. At these optimum harvesting times, with 95 % confidence, expected mean NR for males was 30560 USD$ ha⁻¹ and mean B/C was 3.56; while for females NR was 23,620 USD$ ha⁻¹ and B/C was 2.92. Results show that using independent harvests maximizes benefits. Better economic performance and statistical confidence were observed for males. The dynamics of commercial grade categories is the most important factor influencing the stochastic variability of NR, while the cost of production of pre‐adults is negligible, indicating the reliability of the cultivation technology for the nursery stage. Bioeconomic modelling provides an objective framework for farming practices evaluation and avenues for improvement. Monosex redclaw crayfish culture is environmentally sustainable, with a consistent production technology that is economically viable. With increasing world demand, it should be considered a strong candidate species for diversification.

中文翻译：

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在密集的单性商业条件下饲养的雄性和雌性红爪小龙虾Cherax quadricarinatus池塘替代捕捞时间表的回顾：一种随机生物经济方法

我们使用生物经济模型来分析雄性和雌性红爪的两种替代捕捞时间表：每种性别同时（同一天）收获池塘，每种性别（不同天数）独立收获池塘。结果表明，对于同时收获，在种植120天后，具有95％的置信度，平均净收益（NR）为26,820 USD $ ha ^-1和平均效益成本比（B / C），可获得最佳结果3.08。对于独立收获，在109（NR）和97（B / C）天后收获雄性，在120（NR）和107（B / C）天后收获雌性，可获得最佳结果。在这些最佳采伐时间，有95％的置信度，预期的男性平均NR为30560 USD $ ha ^-1，平均B / C为3.56。而女性NR为23,620美元$ ha ^-1B / C为2.92。结果表明，使用独立的收成可以最大程度地提高收益。男性观察到更好的经济表现和统计信心。商业等级类别的动态是影响自然保护区随机变异性的最重要因素，而成年前生产的成本可以忽略不计，这表明育苗阶段的栽培技术的可靠性。生物经济模型为评估农业实践和改进途径提供了一个客观的框架。Monosex红爪小龙虾的养殖在环境上是可持续的，其稳定的生产技术在经济上是可行的。随着世界需求的增加，应将其视为多样化的强大候选物种。