美国金枪鱼渔业美国金枪鱼渔业已有80多年历史,美国金枪鱼渔业开始阶段,主要在南加利福尼亚一带水域进行作业。由于加工业对金枪鱼需求量不断增加,鼓励渔民到远海寻找和开发金枪鱼。70年代中期以前,美金枪鱼渔业生产稳定上升,1983年之前,大型金枪鱼渔船建造,冷冻设备的发展,捕捞能力一直在扩大,捕捞方法也发生了变化。 60年代初,新型金枪鱼围网船开始进入金枪鱼捕捞船队,50年代末和60年代初,一些饵料船转向围网生产,渔获量较大,当渔 U.S. Tuna Fisheries Tuna fisheries in the United States have been in existence for more than 80 years and begin operations primarily in the waters of Southern California along with the tuna fishery in the United States. Due to the increasing demand of the processing industry for tuna, fishermen are encouraged to go to the distant sea to find and develop tuna. Before the mid-1970s, the U.S. and European tuna fishery production rose steadily. Until 1983, the construction of large-scale tuna fishing boats, the development of refrigeration equipment, the fishing capacity have been expanding, and the fishing methods have also changed. In the early 1960s, the new tuna purse seine started to enter the tuna fishing fleet. In the late 1950s and early 1960s, some food ships turned to the seine to produce larger catch. When fishing