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福建北部海区带鱼[Trichurus haumele(Forskal)]是东海或东海南部群系的重要组成部分(三栖宽,1961;林新濯等,1965;张其永等,1966;罗秉征等,1981)。福建北部海区带鱼捕捞群体年龄组成的变化可以作为资源状况的生物学指标之一。本文应用模糊数学模式识别方法对福建北部海区带鱼捕捞群体年龄组成进行模式识别,对年间捕捞群体年龄组成相似性比较,聚类得出相似年龄组成的年间捕捞群体。
The Trichurus haumele (Forskal) in the northern Fujian coast is an important part of the East China Sea or the southern part of the East China Sea (Triantennial, 1961; Lin, et al., 1965; Zhang et al., 1966; Luo Bingzheng et al., 1981). The age-composition changes of the octopus fishes in northern Fujian sea area can be used as one of the biological indicators of the state of resources. In this paper, fuzzy mathematics pattern recognition method was used to identify the age composition of the octopus fishes in the northern sea area of Fujian. By comparing the age groups of the fishing fishes during the year, the fishing age groups were obtained by clustering.