金枪鱼延绳钓不同位置钓钩渔获效率的研究

Study on the Catching Efficiency of Hooks of Tuna Long-Line Fishing Gear

本文从金枪鱼延绳钓渔具的结构及渔获效果入手 ,分析了大眼金枪鱼 (Thunnus obesus)和黄鳍金枪鱼 (Thunnus albacares)的垂直分布及该延绳钓渔具不同位置钓钩的渔获效率 ,据以对钓具的性能做出初步评价 。

Based on the structure of tuna long-line fishing ge ar and production practice,the author analyzed the vertical moving activity of two tunas: Thunnus obesus, bigeye tuna and Thunnus albacares, yellowfin tuna, an d the catching efficiency of hooks of fishing gear. In the meanwhile, the eval uations and advice on the design of the gear were provided.