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首页> 外文期刊>Aquaculture Research >Polyculture of Freshwater Angelfish Pterophyllum scalare and Pacific white shrimp Litopenaeus vannamei in low-salinity water.
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Polyculture of Freshwater Angelfish Pterophyllum scalare and Pacific white shrimp Litopenaeus vannamei in low-salinity water.

机译：在低盐度水中对淡水神仙鱼鳞角蕨和太平洋白对虾凡纳滨对虾进行混养。

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摘要

In this study, we evaluated the production potential of the polyculture of Freshwater Angelfish (Pterophyllum scalare, Cichlidae) and Pacific white shrimp (Litopenaeus vannamei). Two experimental trials were set up. The first trial entailed the use of a randomized design to investigate three treatments options: angelfish monoculture, shrimp monoculture, and fish and shrimp polyculture in 12 experimental 15 m2 ponds. In the second trial, we investigated two treatments (polyculture of caged fish and uncaged fish) in 10 experimental units. In trial 1, polyculture negatively affected fish growth and survival. However, fish did not affect shrimp growth and the greatest profit was achieved in polyculture. In trial 2, caging fish improve the growth of both fish and shrimp. An economic analysis showed the greatest profit and benefit cost ratio for caged fish compared with uncaged fish. We conclude that growing P. scalare and L. vannamei together is a better strategy than shrimp monoculture in low-salinity water. The use of caged fish in such a polyculture operation would enhance productivity and profitability.
机译：在这项研究中，我们评估了淡水神仙鱼（Pterophyllum scalare，丽鱼科）和太平洋白虾（Litopenaeus vannamei）的混养生产潜力。建立了两个实验性试验。第一个试验需要使用随机设计来研究三种处理方法：神仙鱼单一养殖，虾单一养殖以及在12个实验性15 m 2 池塘中进行鱼虾混合养殖。在第二项试验中，我们在10个实验单位中研究了两种处理方法（网箱鱼和无箱鱼的混养）。在试验1中，混养不利地影响了鱼类的生长和存活。但是，鱼类没有影响虾的生长，在混养中获得了最大的收益。在试验2中，笼养鱼可改善鱼和虾的生长。一项经济分析表明，与未笼养鱼相比，网箱养鱼的最大收益成本效益比。我们得出的结论是，与低盐度水中的虾类单一养殖相比，与鳞茎对虾和南美白对虾一起生长是更好的策略。在这种混养操作中使用网箱鱼类将提高生产率和盈利能力。

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