The Gulf Killifish (Fundulus grandis) is a popular baitfish and a candidate for commercial‐scale production. For inland production, ponds may need to be stocked at different times and densities to meet market demands. Therefore, in Experiment 1, juveniles were stocked into freshwater ponds at a density of 25,000 fish/ha, with two cohorts (mean total length (TL) = 3.92; 3.52 cm) stocked 1 month apart and evaluated for 12 weeks. Cohort 1 had a lower overall survival (40%) than cohort 2 (79%); with no difference between mean final TL (8.46; 8.00 cm); reaching a market size of 6 cm in 22 days and 32 days respectively. In Experiment 2, juveniles (mean TL = 3.16; 3.23 cm) were stocked into freshwater ponds at two densities (25,000 fish/ha and 50,000 fish/ha). Mean final TL was greater in the lower stocking density (8.68 cm) than the higher stocking density (8.20 cm); with no differences in survival between treatments (75; 72%) respectively. Lower stocking and higher stocking densities reached a market size of 6 cm in 29 and 31 days respectively. These results suggest that multiple cohorts can be stocked and grown to market size in one season at a stocking density of 50,000 fish/ha.

中文翻译：

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淡水池塘中海湾K鱼的放养时间和放养密度的比较

海湾K鱼）是一种流行的ba鱼，也是商业规模生产的候选对象。对于内陆生产，可能需要在不同的时间和密度下放养池塘，以满足市场需求。因此，在实验1中，将幼鱼以25,000鱼/公顷的密度放养到淡水池塘中，并以两个种群（平均总长（TL）= 3.92； 3.52厘米）的种群间隔1个月放养并评估12周。同类群组1的总体生存率（40％）低于同类群组2（79％）；平均最终TL（8.46; 8.00 cm）之间无差异；在22天内和32天内达到6厘米的市场规模。在实验2中，将幼鱼（平均TL = 3.16； 3.23厘米）以两种密度（25,000条鱼/公顷和50,000条鱼/公顷）放到淡水池塘中。在较低的放养密度（8.68 cm）下，平均最终TL比较高的放养密度（8.20 cm）大。治疗之间的生存率无差异（75; 72％）。库存减少和库存密度增加分别在29天和31天达到6厘米的市场规模。这些结果表明，可以在一个季节中以50,000只鱼/公顷的放养密度放养多个种群，并使其达到市场规模。