蓝点马鲛Scomberomorus niphonius(C.&V.)(又称蓝点鲅、鲅鱼)为东、黄、渤海洄游性中上层经济鱼类之一,其最高年产量达4万吨之多。近年来,在北方海区不少经济鱼类资源下降的情况下,黄、渤海区篮点巴的资源,却在十多年间仍继续保持相对稳定的状态,其年产量一直保持在2—3万吨的水平。随着蓝点鲅流网渔业的发展,渔业生物科学面临的任务,是要进一步了解并掌握蓝点鲅捕捞群体的洄游分布和资源变动的规律,以为渔情预报、资源的合理利用及渔业的发 Scomberomorus niphonius (C. & V.) Is also one of migratory pelagic fish in the East, Yellow and Bohai Seas. Its highest annual output is 40,000 tons. In recent years, with the decline in the number of economic fish resources in the northern sea area, the resources of the basket bar in the Yellow Sea and Bohai Sea Areas have remained relatively stable for more than a decade and their annual output has remained at between 20,000 and 20,000 Tons of level. With the development of the blue dot 鲅 flow net fisheries, the task facing the fishery biological sciences is to understand and grasp the rules of the migratory distribution and resource changes of the blue spotted 鲅 fishing communities in order to make the forecast of fishery conditions, the rational utilization of resources and the fishery hair