目前在国外已有多个国家正掀起养殖金枪鱼的热潮。所养殖的金枪鱼是一种高档鱼,更是世界上最名贵的海洋经济鱼类之一。金枪鱼属于硬骨鱼纲,金枪鱼目金枪鱼科。据记载,全世界金枪鱼共有30多个品种,我国也有10多种,它们的共同特征为体呈纺锤形,圆筒状或稍侧扁,粗壮,胸部有大鳞片,头部呈青蓝色,腹部灰白色,一般体长40—70cm,体重2—5kg,个体大者体长可达2—3m,重达 At present, there are many countries abroad that are raising the tide of raising tuna. The raised tuna is a premium fish and one of the most expensive marine economically fish in the world. Tuna belongs to the teleost group, the tuna head tuna family. According to records, there are more than 30 species of tuna in the world and 10 species in our country. Their common characteristics are spindle, cylinder or slightly flattened, stout, Off-white, the general body length 40-70cm, body weight 2-5kg, individual body length up to 2-3m,