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首页> 外文期刊>Journal of the World Aquaculture Society >Management strategies for production of the Atlantic white shrimp Penaeus setiferus as bait shrimp in outdoor ponds.
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Management strategies for production of the Atlantic white shrimp Penaeus setiferus as bait shrimp in outdoor ponds.

机译：在室外池塘中作为诱饵虾生产大西洋白对虾对虾的管理策略。

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The geographic distribution of the Atlantic white shrimp, P. setiferus, is in coastal waters from New York to Florida and around the Gulf of Mexico. In addition to its value to commercial fisheries, it is also sold as bait for recreational fishing.A 120-day trial was designed to study production of bait size P. setiferus at high densities in 8 small outdoor ponds in south Texas. A 24-1 fractional factorial design was applied to study the effects of postlarval (PL) density (350 and 700 shrimp/m2),feed type (A and B), and water circulation methods (with and without airlift pumps or centre pond dividers) on shrimp growth, survival and yield. No significant differences in survivals or yields were found between treatments (P=0.2). Feed type (P=0.011), airlift pumps (P=0.021), and centre dividers (P=0.026), had significant impacts on shrimp growth rates. Density effect on growth was not significant. The results indicate that 6-day-old postlarvae can be stocked at 700/m2 and reach a bait size (6.2 g)in 94 days with 73.6% survival and a yield equivalent to 31 300 kg/ha when offered a commercial shrimp feed. A preliminary economic analysis based on this data suggests that operating a bait shrimp farm in Texas with 2 crops annually will show profitability within 7 to 12 years with an internal rate of return of 6.5 and 17.6%, respectively.
机译：大西洋白虾P. setiferus的地理分布在从纽约到佛罗里达以及墨西哥湾周围的沿海水域。除了对商业渔业有价值外，它还被用作休闲捕鱼的诱饵。一项为期120天的试验旨在研究德克萨斯州南部8个小型室外池塘在高密度下诱捕大小为拟南芥的诱饵的生产。应用24-1分数阶乘设计来研究虾后（PL）密度（350和700虾/平方米），饲料类型（A和B）和水循环方法（有无空运泵或中央池塘分隔器）的影响）对虾的生长，存活和产量。治疗之间没有发现存活率或产量的显着差异（P = 0.2）。饲料类型（P = 0.011），气泵（P = 0.021）和中心分隔线（P = 0.026）对虾的生长速度有显着影响。密度对生长的影响不显着。结果表明，六日龄的幼体可以以700 / m2的速度放养，并在94天内达到饵料大小（6.2 g），存活率73.6％，当提供商业虾饲料时，产量相当于31 300 kg / ha。根据此数据进行的初步经济分析表明，在得克萨斯州经营一种每年有两种作物的诱饵虾场，将在7至12年内显示出盈利能力，内部收益率分别为6.5和17.6％。

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