金枪鱼是一种生活在海洋中上层的鱼类,分布在太平洋、大西洋和印度洋的热带、亚热带和温带广阔水域,是一种大洋性鱼类。我国南海金枪鱼的资源很丰富,台湾省的金枪鱼渔业比较发达,产量名列世界第四位,仅次于日本、美国和菲律宾。 金枪鱼是一种非常有趣的鱼类,它游泳速度快、旅行范围远达数千公里,能作跨洋环游。金枪鱼对环境有着独特的适应能力,它的生长潜力很大。近几十年来,很多科学家对金枪鱼进行“标志流放”试验,他们把捕到的金枪鱼标上记号后,再放回大海,观察它们的洄游路线,结 Tuna is a kind of marine fish living in the upper ocean, which is distributed in the tropical, subtropical and temperate waters of the Pacific, the Atlantic and the Indian Ocean. The resources of tuna in the South China Sea are very rich. Taiwan’s tuna fishery is relatively developed with the fourth largest output in the world, second only to Japan, the United States and the Philippines. Tuna is a very interesting fish, it swims fast, travels thousands of kilometers and can travel around the ocean. Tuna has unique adaptability to the environment and its growth potential is very high. In recent decades, many scientists conducted a “landmark exile” test of tuna. After they marked the tuna caught, they returned to the sea and observed their migration routes.