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一、摘要本文介绍了美国夏夷采用的一种新型淡水对虾捕捞系统。该捕捞系统可以机械牵引、也可以手工操作。其捕捞效率和产量皆很高。系统以一个廉价的、轻型的机械化的吊扦来代替捕捞工人下塘进行捕虾作业。捕捞系统的各部件和尼龙虾网用拉链联结,这些拉链还作为封闭机构,用来提高捕捞效率。在虾池中采用新的捕捞系统,成虾的平均捕捞效率估计可达63.5％。本系统值得池塘捕虾作业借鉴。
First, this article describes a new type of freshwater prawn fishing system used in the United States Xiayi. The fishing system can be mechanically or manually operated. Its fishing efficiency and yield are high. The system uses a cheap, light, mechanized crane instead of a pond to catch shrimp. The components of the fishing system are linked to the nylon shrimp mesh with zippers, which also act as a closure to improve fishing efficiency. With the new fishing system in shrimp ponds, the average fishing efficiency of adult shrimp is estimated to be 63.5%. This system is worth learning pond shrimp operations.